random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) 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: 4534 Comm: syz-executor006 Not tainted 4.18.0-rc3+ #11 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:ffff8801ac07f950 EFLAGS: 00010a02 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dead000000000200 RDX: ffff8801ac07fa40 RSI: 1bd5a00000000040 RDI: ffff8801cdce7110 RBP: ffff8801ac07fb28 R08: ffff8801d8fb0280 R09: ffffed0039b9ce41 R10: ffffed0039b9ce41 R11: ffff8801cdce720b R12: ffff8801cdce7100 R13: ffff8801d9321780 R14: ffff8801cdce7208 R15: ffff8801cdce7118 FS: 0000000001bfe880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb357e8e78 CR3: 00000001d93a5000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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: 0033:0x405781 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 54 17 00 00 c3 48 83 ec 08 e8 6a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe595a8810 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000405781 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000760e R13: 00000000004073d0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 75250f64b9c79a1c ]--- 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:ffff8801ac07f950 EFLAGS: 00010a02 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: dead000000000200 RDX: ffff8801ac07fa40 RSI: 1bd5a00000000040 RDI: ffff8801cdce7110 RBP: ffff8801ac07fb28 R08: ffff8801d8fb0280 R09: ffffed0039b9ce41 R10: ffffed0039b9ce41 R11: ffff8801cdce720b R12: ffff8801cdce7100 R13: ffff8801d9321780 R14: ffff8801cdce7208 R15: ffff8801cdce7118 FS: 0000000001bfe880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb357e8e78 CR3: 00000001d93a5000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400