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: 5 Comm: kworker/0:0 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krxrpcd rxrpc_peer_keepalive_worker xt_hashlimit: Unknown mode mask 1000000, kernel too old? RIP: 0010:selinux_socket_sendmsg+0x22/0x40 security/selinux/hooks.c:4911 Code: c3 e8 52 7d 7d fe eb e8 55 48 89 e5 53 48 89 fb e8 83 e4 45 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 11 48 8b 7b 20 be 04 00 00 00 e8 0a fc ff ff 5b 5d RSP: 0018:ffff8880aa3479f0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff83671655 RDX: 0000000000000004 RSI: ffffffff8325606d RDI: 0000000000000020 RBP: ffff8880aa3479f8 R08: ffff8880aa32c140 R09: ffff8880aa32ca08 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880aa347b20 R14: ffff8880aa347b20 R15: 000000000000001d FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdfe2879d8 CR3: 00000000940ee000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: security_socket_sendmsg+0x77/0xc0 security/security.c:1417 sock_sendmsg+0x45/0x130 net/socket.c:629 kernel_sendmsg+0x44/0x50 net/socket.c:640 rxrpc_send_keepalive+0x1ff/0x8e0 net/rxrpc/output.c:658 rxrpc_peer_keepalive_dispatch net/rxrpc/peer_event.c:369 [inline] rxrpc_peer_keepalive_worker+0x7be/0xd02 net/rxrpc/peer_event.c:430 process_one_work+0x989/0x1750 kernel/workqueue.c:2153 worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: kobject: 'kvm' (00000000d769a9f7): kobject_uevent_env kobject: 'kvm' (00000000d769a9f7): fill_kobj_path: path = '/devices/virtual/misc/kvm' xt_hashlimit: invalid rate kobject: 'loop4' (0000000036e2a160): kobject_uevent_env ---[ end trace 6dc8658e8fa13c68 ]--- RIP: 0010:selinux_socket_sendmsg+0x22/0x40 security/selinux/hooks.c:4911 kobject: 'loop4' (0000000036e2a160): fill_kobj_path: path = '/devices/virtual/block/loop4' Code: c3 e8 52 7d 7d fe eb e8 55 48 89 e5 53 48 89 fb e8 83 e4 45 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 11 48 8b 7b 20 be 04 00 00 00 e8 0a fc ff ff 5b 5d RSP: 0018:ffff8880aa3479f0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff83671655 RDX: 0000000000000004 RSI: ffffffff8325606d RDI: 0000000000000020 kobject: 'loop2' (000000004a68f49b): kobject_uevent_env RBP: ffff8880aa3479f8 R08: ffff8880aa32c140 R09: ffff8880aa32ca08 kobject: 'loop2' (000000004a68f49b): fill_kobj_path: path = '/devices/virtual/block/loop2' R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 xt_hashlimit: Unknown mode mask 2000000, kernel too old? R13: ffff8880aa347b20 R14: ffff8880aa347b20 R15: 000000000000001d kobject: 'loop5' (00000000d98234c5): kobject_uevent_env FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'loop5' (00000000d98234c5): fill_kobj_path: path = '/devices/virtual/block/loop5' xt_hashlimit: invalid rate CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop4' (0000000036e2a160): kobject_uevent_env CR2: 0000000000625208 CR3: 000000008e318000 CR4: 00000000001426f0 kobject: 'loop4' (0000000036e2a160): fill_kobj_path: path = '/devices/virtual/block/loop4' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop1' (00000000b5484f57): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'loop1' (00000000b5484f57): fill_kobj_path: path = '/devices/virtual/block/loop1'