================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x84/0x24c fs/hfsplus/bnode.c:32 Read of size 8 at addr ffff0000d159a900 by task syz-executor.2/4566 CPU: 1 PID: 4566 Comm: syz-executor.2 Not tainted 5.15.159-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 __asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309 hfsplus_bnode_read+0x84/0x24c fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x2c4/0x4cc hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x1e0/0x3ec fs/hfsplus/attributes.c:299 hfsplus_delete_attr+0x2e4/0x41c fs/hfsplus/attributes.c:345 __hfsplus_setxattr+0x3b8/0x1df0 fs/hfsplus/xattr.c:342 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x250/0x2b4 fs/xattr.c:611 path_setxattr+0x17c/0x258 fs/xattr.c:630 __do_sys_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 4564: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x29c/0x4c8 mm/slub.c:4407 kmalloc include/linux/slab.h:596 [inline] kzalloc include/linux/slab.h:721 [inline] __hfs_bnode_create+0xe4/0x864 fs/hfsplus/bnode.c:416 hfsplus_bnode_find+0x200/0xcb0 fs/hfsplus/bnode.c:497 hfsplus_brec_find+0x134/0x4a0 fs/hfsplus/bfind.c:183 hfsplus_find_attr+0x1e0/0x33c hfsplus_attr_exists+0x154/0x1c8 fs/hfsplus/attributes.c:182 __hfsplus_setxattr+0x384/0x1df0 fs/hfsplus/xattr.c:336 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x250/0x2b4 fs/xattr.c:611 path_setxattr+0x17c/0x258 fs/xattr.c:630 __do_sys_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Last potentially related work creation: kasan_save_stack+0x38/0x68 mm/kasan/common.c:38 kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348 insert_work+0x64/0x394 kernel/workqueue.c:1366 __queue_work+0xb84/0x114c kernel/workqueue.c:1532 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559 queue_work include/linux/workqueue.h:512 [inline] call_usermodehelper_exec+0x238/0x484 kernel/umh.c:435 call_modprobe kernel/kmod.c:98 [inline] __request_module+0x4c0/0xb34 kernel/kmod.c:170 tcp_ca_find_autoload+0x144/0x240 net/ipv4/tcp_cong.c:45 tcp_set_congestion_control+0x104/0x8f8 net/ipv4/tcp_cong.c:366 do_tcp_setsockopt net/ipv4/tcp.c:3421 [inline] tcp_setsockopt+0x540/0x33ec net/ipv4/tcp.c:3709 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3443 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2198 __do_sys_setsockopt net/socket.c:2209 [inline] __se_sys_setsockopt net/socket.c:2206 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2206 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Second to last potentially related work creation: kasan_save_stack+0x38/0x68 mm/kasan/common.c:38 kasan_record_aux_stack+0xd4/0x11c mm/kasan/generic.c:348 insert_work+0x64/0x394 kernel/workqueue.c:1366 __queue_work+0xb84/0x114c kernel/workqueue.c:1532 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559 queue_work include/linux/workqueue.h:512 [inline] addr_event+0x300/0x3f8 drivers/infiniband/core/roce_gid_mgmt.c:853 inet6addr_event+0xf8/0x160 drivers/infiniband/core/roce_gid_mgmt.c:883 notifier_call_chain kernel/notifier.c:83 [inline] atomic_notifier_call_chain+0x174/0x2a0 kernel/notifier.c:198 inet6addr_notifier_call_chain+0x30/0x40 net/ipv6/addrconf_core.c:109 ipv6_add_addr+0x918/0xb6c net/ipv6/addrconf.c:1182 inet6_addr_add+0x378/0x81c net/ipv6/addrconf.c:2998 inet6_rtm_newaddr+0x6a4/0x1de4 net/ipv6/addrconf.c:4953 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5629 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2505 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5647 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1924 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] __sys_sendto+0x388/0x4d0 net/socket.c:2058 __do_sys_sendto net/socket.c:2070 [inline] __se_sys_sendto net/socket.c:2066 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2066 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000d159a800 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 0 bytes to the right of 256-byte region [ffff0000d159a800, ffff0000d159a900) The buggy address belongs to the page: page:00000000f884f445 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11159a head:00000000f884f445 order:1 compound_mapcount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 fffffc0003456700 0000000400000004 ffff0000c0002480 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d159a800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000d159a880: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d159a900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000d159a980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d159aa00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== Unable to handle kernel paging request at virtual address ffff7de80000909f Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001b497b000 [ffff7de80000909f] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4566 Comm: syz-executor.2 Tainted: G B 5.15.159-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : bytes_is_nonzero mm/kasan/generic.c:85 [inline] pc : memory_is_nonzero mm/kasan/generic.c:102 [inline] pc : memory_is_poisoned_n mm/kasan/generic.c:128 [inline] pc : memory_is_poisoned mm/kasan/generic.c:159 [inline] pc : check_region_inline mm/kasan/generic.c:180 [inline] pc : kasan_check_range+0x74/0x2b4 mm/kasan/generic.c:189 lr : memcpy+0x90/0xe8 mm/kasan/shadow.c:65 sp : ffff80001e826d90 x29: ffff80001e826d90 x28: 00000000000000ff x27: dfff800000000000 x26: ffff80001e826ec0 x25: 1ffff000028649c6 x24: 0000000000000001 x23: ffff800016f52000 x22: ffff800008fbb5ac x21: ffff80001e826ea0 x20: ffffef40000484ff x19: 0000000000000001 x18: 1fffe000368fd38e x17: 1fffe000368fd38e x16: ffff80001199be54 x15: ffff8000149eec00 x14: ffff0001b47e9c80 x13: ffff0001b47e9c7c x12: 0000000000000001 x11: 1ffffde80000909f x10: 1ffffde80000909f x9 : ffffffffffffffff x8 : ffff7de80000909f x7 : 0000000000000000 x6 : ffff800008269a3c x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800008fbb5ac x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffffef40000484ff Call trace: bytes_is_nonzero mm/kasan/generic.c:84 [inline] memory_is_nonzero mm/kasan/generic.c:102 [inline] memory_is_poisoned_n mm/kasan/generic.c:128 [inline] memory_is_poisoned mm/kasan/generic.c:159 [inline] check_region_inline mm/kasan/generic.c:180 [inline] kasan_check_range+0x74/0x2b4 mm/kasan/generic.c:189 memcpy+0x90/0xe8 mm/kasan/shadow.c:65 hfsplus_bnode_read+0x120/0x24c fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x2c4/0x4cc hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x1e0/0x3ec fs/hfsplus/attributes.c:299 hfsplus_delete_attr+0x2e4/0x41c fs/hfsplus/attributes.c:345 __hfsplus_setxattr+0x3b8/0x1df0 fs/hfsplus/xattr.c:342 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x250/0x2b4 fs/xattr.c:611 path_setxattr+0x17c/0x258 fs/xattr.c:630 __do_sys_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 5400014c b4000b8c aa2a03e9 8b0b0129 (3940010a) ---[ end trace deb40838363a08c2 ]--- ---------------- Code disassembly (best guess): 0: 5400014c b.gt 0x28 4: b4000b8c cbz x12, 0x174 8: aa2a03e9 mvn x9, x10 c: 8b0b0129 add x9, x9, x11 * 10: 3940010a ldrb w10, [x8] <-- trapping instruction