audit: type=1400 audit(1580629963.881:41): avc: denied { read } for pid=8297 comm="syz-executor.2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 ------------[ cut here ]------------ hsr_addr_subst_dest: Unknown node WARNING: CPU: 1 PID: 8505 at net/hsr/hsr_framereg.c:313 hsr_addr_subst_dest+0x382/0x460 net/hsr/hsr_framereg.c:313 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8505 Comm: syz-executor.3 Not tainted 4.19.101-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x53 kernel/panic.c:541 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037 RIP: 0010:hsr_addr_subst_dest+0x382/0x460 net/hsr/hsr_framereg.c:313 Code: 89 de e8 a1 dd 20 fa 84 db 75 d3 e8 58 dc 20 fa 48 c7 c6 e0 79 68 88 48 c7 c7 a0 79 68 88 c6 05 96 a1 7c 02 01 e8 2c 64 f4 f9 <0f> 0b eb b0 e8 35 dc 20 fa 0f b6 1d 82 a1 7c 02 31 ff 89 de e8 65 RSP: 0018:ffff88808197f4a0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81558136 RDI: ffffed101032fe86 RBP: ffff88808197f4e0 R08: ffff888084c6a3c0 R09: ffffed1015d23ee3 R10: ffffed1015d23ee2 R11: ffff8880ae91f717 R12: ffff8880a6dbd4e0 R13: 0000000000000000 R14: 00000000ac54ce5f R15: 0000000000000000 hsr_xmit net/hsr/hsr_forward.c:230 [inline] hsr_forward_do net/hsr/hsr_forward.c:295 [inline] hsr_forward_skb+0x1276/0x1c10 net/hsr/hsr_forward.c:373 hsr_dev_xmit+0x72/0xa0 net/hsr/hsr_device.c:242 __netdev_start_xmit include/linux/netdevice.h:4314 [inline] netdev_start_xmit include/linux/netdevice.h:4323 [inline] xmit_one net/core/dev.c:3258 [inline] dev_hard_start_xmit+0x1a5/0x970 net/core/dev.c:3274 __dev_queue_xmit+0x2704/0x2fe0 net/core/dev.c:3844 dev_queue_xmit+0x18/0x20 net/core/dev.c:3877 packet_snd net/packet/af_packet.c:2964 [inline] packet_sendmsg+0x3bb2/0x6440 net/packet/af_packet.c:2989 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2115 __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2236 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b399 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5d7248cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f5d7248d6d4 RCX: 000000000045b399 RDX: 0000000000000001 RSI: 0000000020002d80 RDI: 000000000000002a RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000008cb R14: 00000000004ca256 R15: 000000000075bfd4 Kernel Offset: disabled Rebooting in 86400 seconds..