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: 0 PID: 21599 Comm: syz-executor.1 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sctp_stream_free+0xe4/0x180 net/sctp/stream.c:183 Code: 07 48 89 d1 48 69 d2 aa 00 00 00 48 c1 e1 0c 48 29 d0 48 8d 04 40 48 8d 34 c1 e8 57 24 54 fc 48 8d 78 08 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 75 6f 48 8b 78 08 e8 1c 4c 77 fa 41 0f b6 45 00 84 RSP: 0018:ffffc9000a1578c0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff838f50f6 RDX: 0000000000000001 RSI: ffffffff838f5170 RDI: 0000000000000008 RBP: ffffc9000a1578f8 R08: ffff8880670fc340 R09: fffffbfff16599c9 R10: fffffbfff16599c8 R11: ffffffff8b2cce47 R12: ffff8880a64f26e8 R13: ffffed1014c9e4df R14: dffffc0000000000 R15: ffff8880a64f20a8 FS: 00000000018f4940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f70bd8dc518 CR3: 000000009864d000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sctp_association_free+0x235/0x7e0 net/sctp/associola.c:350 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:934 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1322 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1189 [inline] sctp_do_sm+0x3a6a/0x5190 net/sctp/sm_sideeffect.c:1160 sctp_primitive_ABORT+0xa0/0xd0 net/sctp/primitive.c:104 sctp_close+0x259/0x960 net/sctp/socket.c:1513 inet_release+0xed/0x200 net/ipv4/af_inet.c:427 __sock_release+0xce/0x280 net/socket.c:592 sock_close+0x1e/0x30 net/socket.c:1270 __fput+0x2ff/0x890 fs/file_table.c:280 ____fput+0x16/0x20 fs/file_table.c:313 task_work_run+0x145/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x316/0x380 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:278 [inline] do_syscall_64+0x676/0x790 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4144b1 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe47426540 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00000000004144b1 RDX: 0000001b31420000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 000000008a40e170 R09: 000000008a40e174 R10: 00007ffe47426620 R11: 0000000000000293 R12: 000000000075c9a0 R13: 000000000075c9a0 R14: 00000000007606e8 R15: 000000000075bf2c Modules linked in: ---[ end trace e44a3551b2338884 ]--- RIP: 0010:sctp_stream_free+0xe4/0x180 net/sctp/stream.c:183 Code: 07 48 89 d1 48 69 d2 aa 00 00 00 48 c1 e1 0c 48 29 d0 48 8d 04 40 48 8d 34 c1 e8 57 24 54 fc 48 8d 78 08 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 75 6f 48 8b 78 08 e8 1c 4c 77 fa 41 0f b6 45 00 84 RSP: 0018:ffffc9000a1578c0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff838f50f6 RDX: 0000000000000001 RSI: ffffffff838f5170 RDI: 0000000000000008 RBP: ffffc9000a1578f8 R08: ffff8880670fc340 R09: fffffbfff16599c9 R10: fffffbfff16599c8 R11: ffffffff8b2cce47 R12: ffff8880a64f26e8 R13: ffffed1014c9e4df R14: dffffc0000000000 R15: ffff8880a64f20a8 FS: 00000000018f4940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31221000 CR3: 000000009864d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400