loop5: detected capacity change from 0 to 1024
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x84/0x24c fs/hfsplus/bnode.c:32
Read of size 8 at addr ffff0000cfb3fce0 by task syz.5.371/5831
CPU: 0 PID: 5831 Comm: syz.5.371 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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_removexattr fs/hfsplus/xattr.c:794 [inline]
__hfsplus_setxattr+0xa80/0x1df0 fs/hfsplus/xattr.c:275
hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434
hfsplus_user_setxattr+0x54/0x6c fs/hfsplus/xattr_user.c:30
__vfs_removexattr+0x370/0x38c fs/xattr.c:470
__vfs_removexattr_locked+0x1d8/0x380 fs/xattr.c:505
vfs_removexattr+0xe0/0x23c fs/xattr.c:527
removexattr fs/xattr.c:857 [inline]
path_removexattr+0x1ec/0x2ec fs/xattr.c:871
__do_sys_removexattr fs/xattr.c:885 [inline]
__se_sys_removexattr fs/xattr.c:882 [inline]
__arm64_sys_removexattr+0x60/0x78 fs/xattr.c:882
__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 5830:
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:172
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_user_setxattr+0x54/0x6c fs/hfsplus/xattr_user.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]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:659 [inline]
netdevice_event+0x724/0x84c drivers/infiniband/core/roce_gid_mgmt.c:802
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2018 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2030 [inline]
call_netdevice_notifiers net/core/dev.c:2044 [inline]
dev_set_mac_address+0x394/0x4ec net/core/dev.c:9082
dev_set_mac_address_user+0x44/0x68 net/core/dev.c:9096
do_setlink+0x750/0x3134 net/core/rtnetlink.c:2731
__rtnl_newlink net/core/rtnetlink.c:3447 [inline]
rtnl_newlink+0x1294/0x1acc net/core/rtnetlink.c:3569
rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5647
netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2489
rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5665
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1337
netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
__sys_sendto+0x388/0x4d0 net/socket.c:2063
__do_sys_sendto net/socket.c:2075 [inline]
__se_sys_sendto net/socket.c:2071 [inline]
__arm64_sys_sendto+0xd8/0xf8 net/socket.c:2071
__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
addrconf_add_linklocal+0x24c/0x83c net/ipv6/addrconf.c:3242
addrconf_addr_gen+0x3a0/0x944 net/ipv6/addrconf.c:3373
addrconf_init_auto_addrs+0x788/0xcac
addrconf_notify+0x6ac/0xc58 net/ipv6/addrconf.c:3665
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2018 [inline]
netdev_state_change+0x180/0x22c net/core/dev.c:1409
linkwatch_do_dev+0x2b0/0x3c8 net/core/link_watch.c:167
__linkwatch_run_queue+0x424/0x730 net/core/link_watch.c:213
linkwatch_event+0x58/0x68 net/core/link_watch.c:252
process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
process_scheduled_works kernel/workqueue.c:2373 [inline]
worker_thread+0xb88/0x1034 kernel/workqueue.c:2459
kthread+0x37c/0x45c kernel/kthread.c:334
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
The buggy address belongs to the object at ffff0000cfb3fc00
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 224 bytes inside of
256-byte region [ffff0000cfb3fc00, ffff0000cfb3fd00)
The buggy address belongs to the page:
page:00000000da7a1e01 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fb3e
head:00000000da7a1e01 order:1 compound_mapcount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc00033d0780 0000000200000002 ffff0000c0002480
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff0000cfb3fb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff0000cfb3fc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000cfb3fc80: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff0000cfb3fd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff0000cfb3fd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
Unable to handle kernel paging request at virtual address ffff62e00000b82f
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=00000001ae196000
[ffff62e00000b82f] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 5831 Comm: syz.5.371 Tainted: G B 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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 : ffff800020426f10
x29: ffff800020426f10 x28: 00000000000000ff x27: dfff800000000000
x26: ffff800020427040 x25: 1ffff000028a79eb x24: 0000000000000001
x23: ffff8000171c7000 x22: ffff800008fc3718 x21: ffff800020427020
x20: ffff17000005c17f x19: 0000000000000001 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800011b4da70 x15: 00000000000000ff
x14: ffff0000c6443680 x13: 0000000000ff0100 x12: 0000000000000001
x11: 1fffe2e00000b82f x10: 1fffe2e00000b82f x9 : ffffffffffffffff
x8 : ffff62e00000b82f x7 : 0000000000000000 x6 : 00000000000000ff
x5 : ffff800020427042 x4 : ffff0000f4c7700c x3 : ffff800008fc3718
x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff17000005c17f
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_removexattr fs/hfsplus/xattr.c:794 [inline]
__hfsplus_setxattr+0xa80/0x1df0 fs/hfsplus/xattr.c:275
hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434
hfsplus_user_setxattr+0x54/0x6c fs/hfsplus/xattr_user.c:30
__vfs_removexattr+0x370/0x38c fs/xattr.c:470
__vfs_removexattr_locked+0x1d8/0x380 fs/xattr.c:505
vfs_removexattr+0xe0/0x23c fs/xattr.c:527
removexattr fs/xattr.c:857 [inline]
path_removexattr+0x1ec/0x2ec fs/xattr.c:871
__do_sys_removexattr fs/xattr.c:885 [inline]
__se_sys_removexattr fs/xattr.c:882 [inline]
__arm64_sys_removexattr+0x60/0x78 fs/xattr.c:882
__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 ae6048fbe9e8d7bd ]---
----------------
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