kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 31064 Comm: syz-executor7 Not tainted 4.18.0-rc6+ #25 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__hlist_del include/linux/list.h:649 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:440 [inline] RIP: 0010:bpf_tcp_close+0x959/0x1070 kernel/bpf/sockmap.c:367 Code: 85 38 06 00 00 48 8d 95 18 ff ff ff 49 8b 4c 24 18 48 89 d6 48 c1 ee 03 c6 04 1e 00 48 89 ce 48 c1 ee 03 48 89 85 18 ff ff ff <80> 3c 1e 00 0f 85 d2 05 00 00 48 c1 ea 03 48 85 c0 48 89 01 48 89 RSP: 0018:ffff8801bf1f7950 EFLAGS: 00010a02 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dead000000000200 RDX: ffff8801bf1f7a40 RSI: 1bd5a00000000040 RDI: ffff8801aeea2110 RBP: ffff8801bf1f7b28 R08: ffff8801b449a400 R09: ffffed00361ea421 R10: ffffed00361ea421 R11: ffff8801b0f5210b R12: ffff8801aeea2100 R13: ffff8801b781e5c0 R14: ffff8801b0f52108 R15: ffff8801aeea2118 FS: 0000000001094940(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc4ea2ad000 CR3: 00000001b042e000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: inet_release+0x104/0x1f0 net/ipv4/af_inet.c:427 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:459 __sock_release+0xd7/0x260 net/socket.c:600 sock_close+0x19/0x20 net/socket.c:1151 __fput+0x355/0x8b0 fs/file_table.c:209 ____fput+0x15/0x20 fs/file_table.c:243 task_work_run+0x1ec/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:192 [inline] exit_to_usermode_loop+0x313/0x370 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4106e1 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 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:00007ffdce162dd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000014 RCX: 00000000004106e1 RDX: 0000000000000000 RSI: 00000000007308a8 RDI: 0000000000000013 RBP: 0000000000000010 R08: 00000000000000a0 R09: ffffffffffffffff R10: 0000000000930140 R11: 0000000000000293 R12: 0000000000000000 R13: 000000000004081b R14: 000000000000027e R15: badc0ffeebadface Modules linked in: Dumping ftrace buffer: --------------------------------- syz-exec-8046 1...3 81260552us : 0: syz-exec-30802 1...3 263705148us : 0: --------------------------------- ---[ end trace 9af7c06ef328c69c ]--- RIP: 0010:__hlist_del include/linux/list.h:649 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:440 [inline] RIP: 0010:bpf_tcp_close+0x959/0x1070 kernel/bpf/sockmap.c:367 Code: 85 38 06 00 00 48 8d 95 18 ff ff ff 49 8b 4c 24 18 48 89 d6 48 c1 ee 03 c6 04 1e 00 48 89 ce 48 c1 ee 03 48 89 85 18 ff ff ff <80> 3c 1e 00 0f 85 d2 05 00 00 48 c1 ea 03 48 85 c0 48 89 01 48 89 RSP: 0018:ffff8801bf1f7950 EFLAGS: 00010a02 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dead000000000200 RDX: ffff8801bf1f7a40 RSI: 1bd5a00000000040 RDI: ffff8801aeea2110 RBP: ffff8801bf1f7b28 R08: ffff8801b449a400 R09: ffffed00361ea421 R10: ffffed00361ea421 R11: ffff8801b0f5210b R12: ffff8801aeea2100 R13: ffff8801b781e5c0 R14: ffff8801b0f52108 R15: ffff8801aeea2118 FS: 0000000001094940(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc4ea2ad000 CR3: 00000001b042e000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600