list_del corruption, ffff888090fef738->next is LIST_POISON1 (dead000000000100) list_del corruption, ffff88808c627738->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:45! kernel BUG at lib/list_debug.c:45! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8117 Comm: syz-executor889 Not tainted 4.19.196-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45 Code: e8 74 41 f7 ff 0f 0b 48 89 ee 48 c7 c7 60 df b3 88 e8 63 41 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 de b3 88 e8 4f 41 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 00 df b3 88 e8 3b 41 f7 ff 0f 0b RSP: 0018:ffff88808c627610 EFLAGS: 00010086 RAX: 000000000000004e RBX: ffff88808c627720 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814dfc91 RDI: ffffed10118c4eb4 RBP: ffff88808c627738 R08: 000000000000004e R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 R13: dead000000000100 R14: ffff88808c627740 R15: 0000000000000007 FS: 00007f20beccd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004d05e0 CR3: 00000000b3cbf000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] __remove_wait_queue include/linux/wait.h:184 [inline] remove_wait_queue+0x2c/0x180 kernel/sched/wait.c:44 tipc_send_group_bcast+0x317/0xa10 net/tipc/socket.c:1022 __tipc_sendmsg+0xa2b/0x1320 net/tipc/socket.c:1314 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1279 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2225 __sys_sendmmsg+0x195/0x470 net/socket.c:2320 __do_sys_sendmmsg net/socket.c:2349 [inline] __se_sys_sendmmsg net/socket.c:2346 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2346 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x445809 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f20beccd318 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00000000004ca408 RCX: 0000000000445809 RDX: 080000000000010b RSI: 0000000020000a40 RDI: 0000000000000003 RBP: 00000000004ca400 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004ca40c R13: 00007ffd6f9c140f R14: 00007f20beccd400 R15: 0000000000022000 Modules linked in: ---[ end trace 5f2b68af4e6e0c32 ]--- invalid opcode: 0000 [#2] PREEMPT SMP KASAN RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45 CPU: 1 PID: 8110 Comm: syz-executor889 Tainted: G D 4.19.196-syzkaller #0 Code: e8 74 41 f7 ff 0f 0b 48 89 ee 48 c7 c7 60 df b3 88 e8 63 41 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 de b3 88 e8 4f 41 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 00 df b3 88 e8 3b 41 f7 ff 0f 0b Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RSP: 0018:ffff88808c627610 EFLAGS: 00010086 RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45 RAX: 000000000000004e RBX: ffff88808c627720 RCX: 0000000000000000 Code: e8 74 41 f7 ff 0f 0b 48 89 ee 48 c7 c7 60 df b3 88 e8 63 41 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 de b3 88 e8 4f 41 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 00 df b3 88 e8 3b 41 f7 ff 0f 0b RDX: 0000000000000000 RSI: ffffffff814dfc91 RDI: ffffed10118c4eb4 RSP: 0018:ffff888090fef610 EFLAGS: 00010086 RBP: ffff88808c627738 R08: 000000000000004e R09: 0000000000000000 RAX: 000000000000004e RBX: ffff888090fef720 RCX: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 RDX: 0000000000000000 RSI: ffffffff814dfc91 RDI: ffffed10121fdeb4 R13: dead000000000100 R14: ffff88808c627740 R15: 0000000000000007 RBP: ffff888090fef738 R08: 000000000000004e R09: 0000000000000000 FS: 00007f20beccd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 R13: dead000000000100 R14: ffff888090fef740 R15: 0000000000000007 CR2: 00000000004d05e0 CR3: 00000000b3cbf000 CR4: 00000000001406f0 FS: 00007f20beccd700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 CR2: 00007ffd6f9c9000 CR3: 000000009f145000 CR4: 00000000001406e0