loop8: detected capacity change from 0 to 1024
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba18 by task syz.8.1181/11913

CPU: 0 UID: 0 PID: 11913 Comm: syz.8.1181 Not tainted 6.13.0-syzkaller-00918-g95ec54a420b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 0 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba1a by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 2 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba1c by task syz.8.1181/11913

CPU: 0 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 4 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba1e by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 6 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba20 by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 8 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba22 by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 10 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba24 by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 12 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba26 by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 14 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                               ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba28 by task syz.8.1181/11913

CPU: 0 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 16 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                                  ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba2a by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 18 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                                  ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba2c by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 20 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                                  ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba2e by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 22 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                                  ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba30 by task syz.8.1181/11913

CPU: 0 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f256e975fa0 R15: 00007ffd9d4b9888
 </TASK>

Allocated by task 11913:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4298 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4310
 kmalloc_noprof include/linux/slab.h:905 [inline]
 hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21
 hfsplus_listxattr+0x46d/0xe10 fs/hfsplus/xattr.c:693
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff88802a47b800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 24 bytes to the right of
 allocated 536-byte region [ffff88802a47b800, ffff88802a47ba18)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2a478
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000040 ffff88801b041dc0 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 00fff00000000003 ffffea0000a91e01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 11, tgid 11 (kworker/u8:0), ts 95469958232, free_ts 95464802536
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1558
 prep_new_page mm/page_alloc.c:1566 [inline]
 get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x221/0x2470 mm/page_alloc.c:4753
 alloc_pages_mpol_noprof+0x2c8/0x620 mm/mempolicy.c:2269
 alloc_slab_page mm/slub.c:2423 [inline]
 allocate_slab mm/slub.c:2589 [inline]
 new_slab+0x2c9/0x410 mm/slub.c:2642
 ___slab_alloc+0xd75/0x17a0 mm/slub.c:3830
 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3920
 __slab_alloc_node mm/slub.c:3995 [inline]
 slab_alloc_node mm/slub.c:4156 [inline]
 __do_kmalloc_node mm/slub.c:4297 [inline]
 __kmalloc_node_track_caller_noprof+0x2f1/0x510 mm/slub.c:4317
 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:609
 __alloc_skb+0x164/0x380 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1323 [inline]
 nlmsg_new include/net/netlink.h:1018 [inline]
 inet6_rt_notify+0xc7/0x260 net/ipv6/route.c:6195
 fib6_add_rt2node net/ipv6/ip6_fib.c:1259 [inline]
 fib6_add+0x251d/0x4b20 net/ipv6/ip6_fib.c:1488
 __ip6_ins_rt net/ipv6/route.c:1317 [inline]
 ip6_route_add+0x8d/0x1c0 net/ipv6/route.c:3857
 addrconf_prefix_route+0x2fe/0x510 net/ipv6/addrconf.c:2486
 addrconf_add_linklocal+0x32a/0x620 net/ipv6/addrconf.c:3338
 addrconf_addr_gen+0x36f/0x3c0 net/ipv6/addrconf.c:3467
page last free pid 5899 tgid 5899 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1127 [inline]
 free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4119 [inline]
 slab_alloc_node mm/slub.c:4168 [inline]
 kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4175
 lsm_file_alloc security/security.c:733 [inline]
 security_file_alloc+0x34/0x2b0 security/security.c:2853
 init_file+0x93/0x480 fs/file_table.c:156
 alloc_empty_file+0x91/0x1e0 fs/file_table.c:232
 path_openat+0xe1/0x2d70 fs/namei.c:3973
 do_filp_open+0x20c/0x470 fs/namei.c:4014
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1395
 do_sys_open fs/open.c:1410 [inline]
 __do_sys_openat fs/open.c:1426 [inline]
 __se_sys_openat fs/open.c:1421 [inline]
 __x64_sys_openat+0x175/0x210 fs/open.c:1421
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802a47b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802a47b980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802a47ba00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                                     ^
 ffff88802a47ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802a47bb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
Read of size 2 at addr ffff88802a47ba32 by task syz.8.1181/11913

CPU: 1 UID: 0 PID: 11913 Comm: syz.8.1181 Tainted: G    B              6.13.0-syzkaller-00918-g95ec54a420b8 #0
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xc3/0x620 mm/kasan/report.c:489
 kasan_report+0xd9/0x110 mm/kasan/report.c:602
 hfsplus_uni2asc+0x910/0xa20 fs/hfsplus/unicode.c:179
 hfsplus_listxattr+0x6e6/0xe10 fs/hfsplus/xattr.c:734
 vfs_listxattr+0xba/0x140 fs/xattr.c:493
 listxattr+0x69/0x190 fs/xattr.c:924
 filename_listxattr fs/xattr.c:958 [inline]
 path_listxattrat+0x152/0x370 fs/xattr.c:988
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f256e785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f256f65f038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007f256e975fa0 RCX: 00007f256e785d29
RDX: fffffffffffffee6 RSI: 0000000000000000 RDI: 0000000020000a00
RBP: 00007f256e801b08 R08: 0000000000000000 R09: 0000000000000000