slab kmalloc-8k start ffff8881473e0000 pointer offset 1480 size 8192
list_del corruption. prev->next should be ffff888078be51a8, but was ffff8881473e05c8. (prev=ffff8881473e05c8)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:62!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 10421 Comm: syz.8.3032 Tainted: G     U              syzkaller #0 PREEMPT(full) 
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
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 60 3b 16 8c e8 c7 70 b1 fc 90 <0f> 0b 4c 89 e7 e8 1c 9b 14 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc9000b0a7a28 EFLAGS: 00010082
RAX: 000000000000006d RBX: ffff888078be51a8 RCX: ffffffff8199e6f9
RDX: 0000000000000000 RSI: ffffffff819a6596 RDI: 0000000000000005
RBP: ffff8881473e05c8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: fffffffffffe8528 R12: ffff8881473e05c8
R13: ffff888078be51a8 R14: ffff888078be51b0 R15: ffff888078be5180
FS:  0000000000000000(0000) GS:ffff8881246ba000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000200000 CR3: 0000000061a3e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [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+0x14d/0x240 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x86f/0x2bf0 kernel/exit.c:961
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
 get_signal+0x2673/0x26d0 kernel/signal.c:3034
 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:40 [inline]
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 irqentry_exit_to_user_mode+0x13e/0x290 kernel/entry/common.c:73
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 002b:0000000000000011 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fd0af5d6090 RCX: 00007fd0af38eba9
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000000000008
RBP: 00007fd0af411e19 R08: 00000000000001ff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd0af5d6128 R14: 00007fd0af5d6090 R15: 00007ffe099fc258
 </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 60 3b 16 8c e8 c7 70 b1 fc 90 <0f> 0b 4c 89 e7 e8 1c 9b 14 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc9000b0a7a28 EFLAGS: 00010082
RAX: 000000000000006d RBX: ffff888078be51a8 RCX: ffffffff8199e6f9
RDX: 0000000000000000 RSI: ffffffff819a6596 RDI: 0000000000000005
RBP: ffff8881473e05c8 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: fffffffffffe8528 R12: ffff8881473e05c8
R13: ffff888078be51a8 R14: ffff888078be51b0 R15: ffff888078be5180
FS:  0000000000000000(0000) GS:ffff8881246ba000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000200000 CR3: 0000000061a3e000 CR4: 00000000003526f0