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 kobject: 'loop2' (000000002899207c): kobject_uevent_env CPU: 1 PID: 9969 Comm: syz-executor5 Not tainted 4.19.0-rc4+ #108 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tcp_cleanup_ulp+0xbe/0x140 net/ipv4/tcp_ulp.c:131 Code: 02 00 0f 85 8a 00 00 00 49 8b 9c 24 88 06 00 00 e8 d7 19 ec fa 48 8d 7b 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 51 48 8b 7b 38 e8 d3 78 e0 fa 4c 89 ea 48 b8 00 00 kobject: 'loop2' (000000002899207c): fill_kobj_path: path = '/devices/virtual/block/loop2' RSP: 0018:ffff88019aa676c0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff10037e93dbe RDX: 0000000000000007 RSI: ffffffff8692ba79 RDI: 0000000000000038 RBP: ffff88019aa676e0 R08: 0000000000000000 R09: ffffed003b5e4732 R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff88019f420cc0 R13: ffff88019f421348 R14: ffffffff81939090 R15: ffff88019aa67800 FS: 0000000000eb8940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f31618f7db8 CR3: 0000000199df6000 CR4: 00000000001406e0 Call Trace: tcp_v4_destroy_sock+0x161/0x990 net/ipv4/tcp_ipv4.c:1978 kobject: 'loop3' (00000000202e35f0): kobject_uevent_env kobject: 'loop3' (00000000202e35f0): fill_kobj_path: path = '/devices/virtual/block/loop3' tcp_v6_destroy_sock+0x15/0x20 net/ipv6/tcp_ipv6.c:1762 inet_csk_destroy_sock+0x19f/0x440 net/ipv4/inet_connection_sock.c:835 tcp_close+0xba7/0x1300 net/ipv4/tcp.c:2477 bpf_tcp_close+0x93c/0x10c0 kernel/bpf/sockmap.c:384 inet_release+0x104/0x1f0 net/ipv4/af_inet.c:428 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:457 __sock_release+0xd7/0x250 net/socket.c:579 sock_close+0x19/0x20 net/socket.c:1141 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 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: 0033:0x411151 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:00007ffc0659e2d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411151 RDX: 0000000000000000 RSI: 0000000000733038 RDI: 0000000000000005 RBP: 0000000000000000 R08: ffffffffffffffff R09: ffffffffffffffff R10: 00007ffc0659e200 R11: 0000000000000293 R12: 0000000000000004 kobject: 'loop1' (000000001f5bff95): kobject_uevent_env R13: 0000000000029506 R14: 0000000000000061 R15: badc0ffeebadface Modules linked in: ---[ end trace 355c88d53dcedf16 ]--- RIP: 0010:tcp_cleanup_ulp+0xbe/0x140 net/ipv4/tcp_ulp.c:131 Code: 02 00 0f 85 8a 00 00 00 49 8b 9c 24 88 06 00 00 e8 d7 19 ec fa 48 8d 7b 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 51 48 8b 7b 38 e8 d3 78 e0 fa 4c 89 ea 48 b8 00 00 RSP: 0018:ffff88019aa676c0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff10037e93dbe RDX: 0000000000000007 RSI: ffffffff8692ba79 RDI: 0000000000000038 kobject: 'loop1' (000000001f5bff95): fill_kobj_path: path = '/devices/virtual/block/loop1' RBP: ffff88019aa676e0 R08: 0000000000000000 R09: ffffed003b5e4732 R10: ffffed003b5e4732 R11: ffff8801daf23993 R12: ffff88019f420cc0 R13: ffff88019f421348 R14: ffffffff81939090 R15: ffff88019aa67800 FS: 0000000000eb8940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f31618f7db8 CR3: 0000000199df6000 CR4: 00000000001406e0