list_del corruption. prev->next should be ffff888026f21048, but was ffff88801f0b5048. (prev=ffff888143b55048) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7406 Comm: syz-executor.3 Not tainted 6.6.0-syzkaller-15029-gbe3ca57cfb77 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:__list_del_entry_valid_or_report+0x10e/0x130 lib/list_debug.c:62 Code: e8 07 93 8a 06 0f 0b 48 c7 c7 00 65 bd 8b 4c 89 fe e8 f6 92 8a 06 0f 0b 48 c7 c7 60 65 bd 8b 4c 89 fe 48 89 d9 e8 e2 92 8a 06 <0f> 0b 48 c7 c7 e0 65 bd 8b 4c 89 fe 4c 89 f1 e8 ce 92 8a 06 0f 0b RSP: 0018:ffffc9000de07db0 EFLAGS: 00010046 RAX: 000000000000006d RBX: ffff888143b55048 RCX: 6909cf4c39c27800 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffff888026f21008 R08: ffffffff8171771c R09: 1ffff92001bc0f54 R10: dffffc0000000000 R11: fffff52001bc0f55 R12: dffffc0000000000 R13: ffff888026f20000 R14: ffff8880251905e8 R15: ffff888026f21048 FS: 0000555556305480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000079dff000 CR4: 00000000003506f0 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 include/linux/list.h:229 [inline] ptp_release+0xa8/0x1e0 drivers/ptp/ptp_chardev.c:147 posix_clock_release+0x8c/0x100 kernel/time/posix-clock.c:157 __fput+0x3cc/0xa10 fs/file_table.c:394 __do_sys_close fs/open.c:1590 [inline] __se_sys_close+0x15f/0x220 fs/open.c:1575 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fc12a47b9da Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007ffc25d5e460 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc12a47b9da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 0000000000000032 R08: 0000001b30760000 R09: 00007fc12a59c05c R10: 00007ffc25d5e5b0 R11: 0000000000000293 R12: 00007fc12a0008f0 R13: ffffffffffffffff R14: 00007fc12a000000 R15: 00000000000b14eb Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x10e/0x130 lib/list_debug.c:62 Code: e8 07 93 8a 06 0f 0b 48 c7 c7 00 65 bd 8b 4c 89 fe e8 f6 92 8a 06 0f 0b 48 c7 c7 60 65 bd 8b 4c 89 fe 48 89 d9 e8 e2 92 8a 06 <0f> 0b 48 c7 c7 e0 65 bd 8b 4c 89 fe 4c 89 f1 e8 ce 92 8a 06 0f 0b RSP: 0018:ffffc9000de07db0 EFLAGS: 00010046 RAX: 000000000000006d RBX: ffff888143b55048 RCX: 6909cf4c39c27800 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffff888026f21008 R08: ffffffff8171771c R09: 1ffff92001bc0f54 R10: dffffc0000000000 R11: fffff52001bc0f55 R12: dffffc0000000000 R13: ffff888026f20000 R14: ffff8880251905e8 R15: ffff888026f21048 FS: 0000555556305480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000079dff000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400