stack segment: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4525 Comm: udevd Not tainted 6.7.0-rc3-syzkaller-00284-g815fb87b7530 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:find_stack lib/stackdepot.c:350 [inline]
RIP: 0010:__stack_depot_save+0x15e/0x520 lib/stackdepot.c:390
Code: 29 c0 89 c3 48 8b 05 f9 df 15 0e 89 d9 23 0d e9 df 15 0e 48 8d 0c c8 48 8b 29 48 85 ed 75 0b eb 70 48 8b 6d 00 48 85 ed 74 67 <39> 5d 08 75 f2 44 3b 7d 0c 75 ec 31 c0 48 8b 74 c5 18 49 39 34 c6
RSP: 0018:ffffc9000313f5c0 EFLAGS: 00010202
RAX: ffff88823b400000 RBX: 0000000002972db3 RCX: ffff88823b796d98
RDX: 000000000000000f RSI: 0000000000000003 RDI: 000000001871a4f5
RBP: 1f0f66c35b044389 R08: 000000008c47e937 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: 0000000000000001
R13: 0000000000000dc0 R14: ffffc9000313f628 R15: 000000000000000f
FS: 00007f1a013b6c80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeaa65d000 CR3: 0000000018334000 CR4: 0000000000350ef0
Call Trace:
<TASK>
kasan_save_stack+0x43/0x50 mm/kasan/common.c:46
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:763 [inline]
slab_alloc_node mm/slub.c:3478 [inline]
slab_alloc mm/slub.c:3486 [inline]
__kmem_cache_alloc_lru mm/slub.c:3493 [inline]
kmem_cache_alloc+0x15d/0x2f0 mm/slub.c:3502
kmem_cache_zalloc include/linux/slab.h:711 [inline]
__kernfs_iattrs+0xb8/0x3f0 fs/kernfs/inode.c:37
kernfs_iattrs fs/kernfs/inode.c:60 [inline]
__kernfs_setattr+0x4d/0x3c0 fs/kernfs/inode.c:73
kernfs_iop_setattr+0x120/0x180 fs/kernfs/inode.c:127
notify_change+0x742/0x11c0 fs/attr.c:499
do_truncate+0x15c/0x220 fs/open.c:66
handle_truncate fs/namei.c:3280 [inline]
do_open fs/namei.c:3626 [inline]
path_openat+0x25a0/0x2c50 fs/namei.c:3779
do_filp_open+0x1de/0x430 fs/namei.c:3809
do_sys_openat2+0x176/0x1e0 fs/open.c:1440
do_sys_open fs/open.c:1455 [inline]
__do_sys_openat fs/open.c:1471 [inline]
__se_sys_openat fs/open.c:1466 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1466
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1a00f169a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffef1d9c270 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1a00f169a4
RDX: 0000000000080241 RSI: 00007ffef1d9c6a8 RDI: 00000000ffffff9c
RBP: 00007ffef1d9c6a8 R08: 0000000000000004 R09: 0000000000000001
R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
R13: 0000564c2e53f72e R14: 0000000000000001 R15: 0000000000000000
</TASK>
Modules linked in:
----------------
Code disassembly (best guess):
0: 29 c0 sub %eax,%eax
2: 89 c3 mov %eax,%ebx
4: 48 8b 05 f9 df 15 0e mov 0xe15dff9(%rip),%rax # 0xe15e004
b: 89 d9 mov %ebx,%ecx
d: 23 0d e9 df 15 0e and 0xe15dfe9(%rip),%ecx # 0xe15dffc
13: 48 8d 0c c8 lea (%rax,%rcx,8),%rcx
17: 48 8b 29 mov (%rcx),%rbp
1a: 48 85 ed test %rbp,%rbp
1d: 75 0b jne 0x2a
1f: eb 70 jmp 0x91
21: 48 8b 6d 00 mov 0x0(%rbp),%rbp
25: 48 85 ed test %rbp,%rbp
28: 74 67 je 0x91
* 2a: 39 5d 08 cmp %ebx,0x8(%rbp) <-- trapping instruction
2d: 75 f2 jne 0x21
2f: 44 3b 7d 0c cmp 0xc(%rbp),%r15d
33: 75 ec jne 0x21
35: 31 c0 xor %eax,%eax
37: 48 8b 74 c5 18 mov 0x18(%rbp,%rax,8),%rsi
3c: 49 39 34 c6 cmp %rsi,(%r14,%rax,8)