slab kmalloc-8k start ffff8881477b0000 pointer offset 1480 size 8192
list_del corruption. prev->next should be ffff88805cfec0e8, but was ffff8881477b05c8. (prev=ffff8881477b05c8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:62!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 8313 Comm: syz.3.449 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__list_del_entry_valid_or_report+0x17a/0x200 lib/list_debug.c:62
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 a0 7d f0 8b e8 87 18 f1 fc 90 <0f> 0b 4c 89 e7 e8 ac 09 56 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc9000b107c10 EFLAGS: 00010086
RAX: 000000000000006d RBX: ffff88805cfec0e8 RCX: ffffffff819ada09
RDX: 0000000000000000 RSI: ffffffff819b5536 RDI: 0000000000000005
RBP: ffff8881477b05c8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff8881477b05c8
R13: ffff88805cfec0e8 R14: ffff88805cfec0f0 R15: ffff88805cfec0c0
FS:  0000000000000000(0000) GS:ffff888124a0d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08f11ed990 CR3: 000000007584c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del include/linux/list.h:237 [inline]
 __remove_wait_queue include/linux/wait.h:209 [inline]
 remove_wait_queue+0x30/0x180 kernel/sched/wait.c:74
 ep_remove_wait_queue+0x85/0x1d0 fs/eventpoll.c:676
 ep_unregister_pollwait fs/eventpoll.c:691 [inline]
 ep_clear_and_put+0x186/0x420 fs/eventpoll.c:916
 ep_eventpoll_release+0x3e/0x60 fs/eventpoll.c:966
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x150/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:966
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1107
 __do_sys_exit_group kernel/exit.c:1118 [inline]
 __se_sys_exit_group kernel/exit.c:1116 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1116
 x64_sys_call+0x150b/0x1730 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f1ed8f7c9
Code: Unable to access opcode bytes at 0x7f6f1ed8f79f.
RSP: 002b:00007ffceb7a6328 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6f1ed8f7c9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffceb7a638c R08: 0000001eeb7a641f R09: 00000000000927c0
R10: 0000000000043094 R11: 0000000000000246 R12: 000000000000006f
R13: 00000000000927c0 R14: 0000000000040d27 R15: 00007ffceb7a63e0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x17a/0x200 lib/list_debug.c:62
Code: 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 8b 55 00 48 89 e9 48 89 de 48 c7 c7 a0 7d f0 8b e8 87 18 f1 fc 90 <0f> 0b 4c 89 e7 e8 ac 09 56 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc9000b107c10 EFLAGS: 00010086
RAX: 000000000000006d RBX: ffff88805cfec0e8 RCX: ffffffff819ada09
RDX: 0000000000000000 RSI: ffffffff819b5536 RDI: 0000000000000005
RBP: ffff8881477b05c8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff8881477b05c8
R13: ffff88805cfec0e8 R14: ffff88805cfec0f0 R15: ffff88805cfec0c0
FS:  0000000000000000(0000) GS:ffff888124a0d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08f11ed990 CR3: 000000007584c000 CR4: 00000000003526f0