slab net_namespace start ffff888031b44a80 pointer offset 4344 size 9280 list_del corruption. prev->next should be ffff888046f13c88, but was ffff888032627108. (prev=ffff888031b45b78) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 12343 Comm: syz.1.1538 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 6b 26 71 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 6c ee 92 fd 49 8b 17 48 c7 c7 00 0c bf 8b 48 89 de 4c 89 f9 e8 07 c4 94 fc 90 <0f> 0b 4c 89 f7 e8 3c 26 71 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 3d RSP: 0018:ffffc90002ee7ad8 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888046f13c88 RCX: 6c863f15d1f87f00 RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba680 R12: 1ffff11006368b6f R13: dffffc0000000000 R14: ffff888031b45b78 R15: ffff888031b45b78 FS: 0000555561b23500(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000fff3 CR3: 0000000074dbe000 CR4: 00000000003526f0 Call Trace: __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] sctp_destroy_sock+0xb4/0x370 net/sctp/socket.c:5164 sk_common_release+0x75/0x310 net/core/sock.c:3961 sctp_close+0x77e/0x900 net/sctp/socket.c:1551 inet_release+0x144/0x190 net/ipv4/af_inet.c:437 __sock_release net/socket.c:662 [inline] sock_close+0xc3/0x240 net/socket.c:1455 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1088d8f6c9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe635da608 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f1088fe7da0 RCX: 00007f1088d8f6c9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f1088fe7da0 R08: 00000000000001d0 R09: 0000001c635da8ff R10: 00007f1088fe7cb0 R11: 0000000000000246 R12: 000000000003c6cb R13: 00007f1088fe6180 R14: ffffffffffffffff R15: 00007ffe635da720 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 6b 26 71 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 6c ee 92 fd 49 8b 17 48 c7 c7 00 0c bf 8b 48 89 de 4c 89 f9 e8 07 c4 94 fc 90 <0f> 0b 4c 89 f7 e8 3c 26 71 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 3d RSP: 0018:ffffc90002ee7ad8 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888046f13c88 RCX: 6c863f15d1f87f00 RDX: 0000000000000000 RSI: 0000000000000202 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba680 R12: 1ffff11006368b6f R13: dffffc0000000000 R14: ffff888031b45b78 R15: ffff888031b45b78 FS: 0000555561b23500(0000) GS:ffff88812613b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000fff3 CR3: 0000000074dbe000 CR4: 00000000003526f0