kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 29459 Comm: syz-executor.1 Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0x85/0xf5 lib/list_debug.c:51 Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d RSP: 0018:ffff888079bc72b8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880696d0098 RCX: ffffc9000bd63000 RDX: 0000000000000000 RSI: ffffffff86b73100 RDI: ffff8880696d00a0 RBP: ffff888079bc72d0 R08: ffff88806ee1c280 R09: ffff888079bc7598 R10: ffffed100f378ee5 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880696d0098 R15: ffff888079bc7478 FS: 00007f2c737d7700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c329000 CR3: 000000009f848000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:131 [inline] list_del_init include/linux/list.h:190 [inline] sctp_sched_dequeue_common+0x28/0x340 net/sctp/stream_sched.c:252 sctp_sched_fcfs_dequeue+0xec/0x170 net/sctp/stream_sched.c:75 sctp_outq_dequeue_data net/sctp/outqueue.c:75 [inline] sctp_outq_flush_data net/sctp/outqueue.c:1064 [inline] sctp_outq_flush+0xb9d/0x2780 net/sctp/outqueue.c:1190 sctp_outq_uncork+0x6c/0x80 net/sctp/outqueue.c:757 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1781 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1184 [inline] sctp_do_sm+0x4b9/0x5170 net/sctp/sm_sideeffect.c:1155 sctp_primitive_SEND+0xa0/0xd0 net/sctp/primitive.c:163 sctp_sendmsg_to_asoc+0x1145/0x1f40 net/sctp/socket.c:1944 sctp_sendmsg+0x109a/0x17d0 net/sctp/socket.c:2102 inet_sendmsg+0x9e/0xe0 net/ipv4/af_inet.c:807 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:657 sock_write_iter+0x27c/0x3e0 net/socket.c:989 call_write_iter include/linux/fs.h:1870 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x268/0x5d0 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459879 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2c737d6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879 RDX: 000000000001a000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c737d76d4 R13: 00000000004c99d0 R14: 00000000004e1080 R15: 00000000ffffffff Modules linked in: ---[ end trace 3d19cb7bd4afba6b ]--- RIP: 0010:__list_del_entry_valid+0x85/0xf5 lib/list_debug.c:51 Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d RSP: 0018:ffff888079bc72b8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880696d0098 RCX: ffffc9000bd63000 RDX: 0000000000000000 RSI: ffffffff86b73100 RDI: ffff8880696d00a0 RBP: ffff888079bc72d0 R08: ffff88806ee1c280 R09: ffff888079bc7598 R10: ffffed100f378ee5 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880696d0098 R15: ffff888079bc7478 FS: 00007f2c737d7700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020800000 CR3: 000000009f848000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400