audit: type=1400 audit(1568764564.812:1787): avc: denied { write } for pid=17470 comm="syz-executor.1" path="socket:[73507]" dev="sockfs" ino=73507 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 audit: type=1400 audit(1568764564.842:1788): avc: denied { map } for pid=17483 comm="blkid" path="/etc/ld.so.cache" dev="sda1" ino=2251 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 invalid inflight: 1 state 4 cwnd 10 mss 1448 ------------[ cut here ]------------ kobject: 'brif' (ffff888078551300): auto cleanup kobject_del WARNING: CPU: 1 PID: 17540 at net/ipv4/tcp_output.c:2507 tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 17540 Comm: syz-executor.3 Not tainted 4.14.144 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 panic+0x1f2/0x426 kernel/panic.c:182 protocol 88fb is buggy, dev hsr_slave_0 __warn.cold+0x2f/0x36 kernel/panic.c:546 protocol 88fb is buggy, dev hsr_slave_1 report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 kobject: 'brif' (ffff888078551300): calling ktype release do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963 RIP: 0010:tcp_send_loss_probe.cold+0x83/0xa2 net/ipv4/tcp_output.c:2507 RSP: 0018:ffff8880aef07cb8 EFLAGS: 00010282 RAX: 000000000000002c RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000100 RSI: ffffffff866d10e0 RDI: ffffed1015de0f8d RBP: ffff8880aef07ce8 R08: 000000000000002c R09: ffff88805647abb0 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888067975500 R13: 0000000000000001 R14: 00000000000005a8 R15: 000000000000000a kobject: (ffff888078551300): dynamic_kobj_release tcp_write_timer_handler+0x4a8/0x7e0 net/ipv4/tcp_timer.c:575 tcp_write_timer+0xd8/0x180 net/ipv4/tcp_timer.c:597 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1634 [inline] __run_timers kernel/time/timer.c:1602 [inline] run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x160/0x1b0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:compound_head include/linux/page-flags.h:147 [inline] RIP: 0010:put_page include/linux/mm.h:853 [inline] RIP: 0010:anon_pipe_buf_release+0xf4/0x220 fs/pipe.c:139 RSP: 0018:ffff888067a3fc08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: dffffc0000000000 RBX: ffff888099ba1000 RCX: ffffc9000f892000 RDX: 1ffffd4000537e34 RSI: ffffffff818f2d2f RDI: ffff888099ba10f0 RBP: ffff888067a3fc30 R08: ffffed1014df8e00 R09: 0000000000000000 R10: ffffed1014df8dff R11: ffff8880a6fc6fff R12: ffffea00029bf180 R13: ffffea00029bf1a0 R14: ffffea00029bf180 R15: dead000000000100 pipe_buf_release include/linux/pipe_fs_i.h:138 [inline] pipe_read+0x331/0x810 fs/pipe.c:316 call_read_iter include/linux/fs.h:1771 [inline] new_sync_read fs/read_write.c:401 [inline] __vfs_read+0x4a4/0x6a0 fs/read_write.c:413 vfs_read+0x137/0x350 fs/read_write.c:447 SYSC_read fs/read_write.c:574 [inline] SyS_read+0xfd/0x230 fs/read_write.c:567 kobject: 'brif': free name do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4598e9 RSP: 002b:00007f8fb929fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 RDX: 0000000050c7e3e3 RSI: 0000000020000200 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8fb92a06d4 R13: 00000000004c5b8f R14: 00000000004dc048 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..