slab kmalloc-512 start ffff888027084800 pointer offset 0 size 512 list_del corruption. next->prev should be ffff888032304c88, but was ffff88802cd1cc00. (next=ffff888027084800) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:67! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 3 Comm: pool_workqueue_ Not tainted 6.15.0-rc5-syzkaller-00163-g09db7a4d287d #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__list_del_entry_valid_or_report+0x18a/0x190 lib/list_debug.c:65 Code: 5c 85 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 7d 55 63 fd 49 8b 56 08 48 c7 c7 80 d7 c1 8b 48 89 de 4c 89 f1 e8 e7 21 69 fc 90 <0f> 0b cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000087cc0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888032304c88 RCX: 8f6f209347307100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffc900000879a7 R09: 1ffff92000010f34 R10: dffffc0000000000 R11: fffff52000010f35 R12: 1ffff11004e10901 R13: dffffc0000000000 R14: ffff888027084800 R15: ffff888027084808 FS: 0000000000000000(0000) GS:ffff8881260cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c308702 CR3: 0000000067b62000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:168 [inline] pwq_release_workfn+0xbd/0x870 kernel/workqueue.c:5078 kthread_worker_fn+0x504/0xb60 kernel/kthread.c:1010 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x18a/0x190 lib/list_debug.c:65 Code: 5c 85 43 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 7d 55 63 fd 49 8b 56 08 48 c7 c7 80 d7 c1 8b 48 89 de 4c 89 f1 e8 e7 21 69 fc 90 <0f> 0b cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90000087cc0 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888032304c88 RCX: 8f6f209347307100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffc900000879a7 R09: 1ffff92000010f34 R10: dffffc0000000000 R11: fffff52000010f35 R12: 1ffff11004e10901 R13: dffffc0000000000 R14: ffff888027084800 R15: ffff888027084808 FS: 0000000000000000(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055adfa116000 CR3: 000000007cc42000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400