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: 0 PID: 3169 Comm: syz-executor6 Not tainted 4.18.0-rc3+ #48 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__hlist_del include/linux/list.h:679 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:440 [inline] RIP: 0010:bpf_tcp_close+0x94c/0x1050 kernel/bpf/sockmap.c:365 Code: 85 25 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 bf 05 00 00 48 c1 ea 03 48 85 c0 48 89 01 48 89 RSP: 0018:ffff88019f4e7950 EFLAGS: 00010a02 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dead000000000200 RDX: ffff88019f4e7a40 RSI: 1bd5a00000000040 RDI: ffff8801c0fa7290 RBP: ffff88019f4e7b28 R08: ffff8801cfad8680 R09: ffffed003b2e4781 R10: ffffed003b2e4781 R11: ffff8801d9723c0b R12: ffff8801c0fa7280 R13: ffff8801cd376d40 R14: ffff8801d9723c08 R15: ffff8801c0fa7298 FS: 00000000027ef940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000705694 CR3: 00000001cb3e3000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000020000000 DR3: 0000000020000000 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:599 sock_close+0x19/0x20 net/socket.c:1150 __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: 0033:0x40ff01 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:00007fff830d0f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000015 RCX: 000000000040ff01 RDX: 0000000000000000 RSI: 0000000000732808 RDI: 0000000000000014 RBP: 0000000000000013 R08: 00007fff830d0e80 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fff830d15b0 R15: 00000000007034c0 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace cd4a0ad7320ff464 ]--- RIP: 0010:__hlist_del include/linux/list.h:679 [inline] RIP: 0010:hlist_del_rcu include/linux/rculist.h:440 [inline] RIP: 0010:bpf_tcp_close+0x94c/0x1050 kernel/bpf/sockmap.c:365 Code: 85 25 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 bf 05 00 00 48 c1 ea 03 48 85 c0 48 89 01 48 89 RSP: 0018:ffff88019f4e7950 EFLAGS: 00010a02 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dead000000000200 RDX: ffff88019f4e7a40 RSI: 1bd5a00000000040 RDI: ffff8801c0fa7290 RBP: ffff88019f4e7b28 R08: ffff8801cfad8680 R09: ffffed003b2e4781 R10: ffffed003b2e4781 R11: ffff8801d9723c0b R12: ffff8801c0fa7280 R13: ffff8801cd376d40 R14: ffff8801d9723c08 R15: ffff8801c0fa7298 FS: 00000000027ef940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000705694 CR3: 00000001cb3e3000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000020000000 DR3: 0000000020000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600