[....] Starting enhanced syslogd: rsyslogd[ 13.435266] audit: type=1400 audit(1517302009.651:4): avc: denied { syslog } for pid=3905 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.220' (ECDSA) to the list of known hosts. net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz0.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "vcan0" Cannot find device "gre0" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "gre0" Cannot find device "gre0" RTNETLINK answers: Operation not supported Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" executing program executing program Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" executing program executing program Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" executing program executing program executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program Cannot find device "erspan0" Cannot find device "erspan0" executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program executing program executing program executing program executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program executing program executing program executing program executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program executing program executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program Cannot find device "erspan0" executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 31.614151] kasan: CONFIG_KASAN_INLINE enabled executing program [ 31.640217] BUG: spinlock bad magic on CPU#1, syzkaller118423/4066 [ 31.640226] lock: 0xffff8801b24d8018, .magic: dead4eac, .owner: /-1, .owner_cpu: -1 [ 31.640233] CPU: 1 PID: 4066 Comm: syzkaller118423 Not tainted 4.9.78-g7be1985 #24 [ 31.640235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.640246] ffff8801db307898 ffffffff81d94409 ffff8801b24d8018 ffff8801d3144800 [ 31.640252] 0000000000000001 0000000000000001 0000000000000000 ffff8801db3078d8 [ 31.640257] ffffffff812488ed ffffffff81223c2e 0000000000000000 0000000000000000 [ 31.640259] Call Trace: [ 31.640275] [ 31.640275] [] dump_stack+0xc1/0x128 [ 31.640287] [] spin_dump+0x14d/0x280 [ 31.640293] [] ? __wake_up+0x1e/0x50 [ 31.640299] [] do_raw_spin_lock+0x174/0x1e0 [ 31.640309] [] _raw_spin_lock_irqsave+0x56/0x70 [ 31.640313] [] ? __wake_up+0x1e/0x50 [ 31.640317] [] __wake_up+0x1e/0x50 [ 31.640325] [] sg_rq_end_io+0x5dc/0xbc0 [ 31.640330] [] ? sg_release+0x1e0/0x1e0 [ 31.640339] [] ? blk_account_io_done+0xb4/0x860 [ 31.640349] [] ? sg_free_table_chained+0x71/0x80 [ 31.640355] [] ? sg_release+0x1e0/0x1e0 [ 31.640361] [] __blk_mq_end_request+0x54/0xc0 [ 31.640372] [] scsi_end_request+0x135/0x5c0 [ 31.640378] [] scsi_io_completion+0x15de/0x1730 [ 31.640383] [] ? scsi_unblock_requests+0x50/0x50 [ 31.640391] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 31.640398] [] scsi_finish_command+0x3b8/0x530 [ 31.640403] [] scsi_softirq_done+0x250/0x350 [ 31.640409] [] __blk_mq_complete_request+0x205/0x4b0 [ 31.640414] [] blk_mq_complete_request+0x65/0x80 [ 31.640421] [] scsi_mq_done+0xce/0x320 [ 31.640427] [] virtscsi_complete_cmd+0x5cf/0x7f0 [ 31.640432] [] ? virtscsi_remove+0x140/0x140 [ 31.640436] [] virtscsi_vq_done+0xc9/0x170 [ 31.640441] [] ? virtscsi_target_destroy+0x50/0x50 [ 31.640446] [] virtscsi_req_done+0xa7/0xd0 [ 31.640451] [] ? virtscsi_vq_done+0x170/0x170 [ 31.640457] [] vring_interrupt+0x109/0x150 [ 31.640463] [] ? vring_create_virtqueue+0x3f0/0x3f0 [ 31.640470] [] __handle_irq_event_percpu+0xef/0x800 [ 31.640476] [] handle_irq_event_percpu+0x74/0x150 [ 31.640481] [] ? __handle_irq_event_percpu+0x800/0x800 [ 31.640486] [] ? handle_irq_event+0x9f/0x140 [ 31.640490] [] handle_irq_event+0xa7/0x140 [ 31.640496] [] handle_edge_irq+0x1fa/0x8e0 [ 31.640505] [] handle_irq+0x24e/0x3b0 [ 31.640513] [] ? check_preemption_disabled+0x3b/0x200 [ 31.640520] [] do_IRQ+0x89/0x1b0 [ 31.640526] [] common_interrupt+0xa0/0xa0 [ 31.640534] [ 31.640534] [] ? memset_erms+0x9/0x10 [ 31.640543] [] ? kasan_free_pages+0x59/0x60 [ 31.640549] [] __free_pages_ok+0x1f3/0x16c0 [ 31.640556] [] ? mark_held_locks+0xaf/0x100 [ 31.640562] [] ? free_transhuge_page+0x24/0xc0 [ 31.640568] [] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 31.640573] [] free_compound_page+0x5e/0x70 [ 31.640578] [] free_transhuge_page+0x99/0xc0 [ 31.640585] [] __put_compound_page+0x87/0xb0 [ 31.640592] [] release_pages+0x2e4/0x930 [ 31.640598] [] ? __pagevec_lru_add_fn+0x7b0/0x7b0 [ 31.640605] [] ? check_preemption_disabled+0x3b/0x200 [ 31.640609] [] ? lru_add_drain_cpu+0x15b/0x330 [ 31.640615] [] free_pages_and_swap_cache+0x113/0x160 [ 31.640622] [] tlb_flush_mmu_free+0xb4/0x160 [ 31.640627] [] unmap_page_range+0xfe9/0x1830 [ 31.640632] [] ? vm_normal_page_pmd+0x240/0x240 [ 31.640638] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 31.640643] [] unmap_single_vma+0x10b/0x270 [ 31.640647] [] unmap_vmas+0xf1/0x1b0 [ 31.640652] [] unmap_region+0x1e5/0x3a0 [ 31.640656] [] ? __vma_link_file+0x160/0x160 [ 31.640662] [] ? __lock_is_held+0xa1/0xf0 [ 31.640669] [] ? vma_compute_subtree_gap+0x190/0x200 [ 31.640674] [] do_munmap+0x721/0xeb0 [ 31.640679] [] mmap_region+0x14d/0xfd0 [ 31.640687] [] ? selinux_mmap_addr+0x1f/0xf0 [ 31.640692] [] do_mmap+0x57b/0xbe0 [ 31.640700] [] vm_mmap_pgoff+0x16b/0x1b0 [ 31.640707] [] ? vma_is_stack_for_current+0xa0/0xa0 [ 31.640715] [] ? rw_verify_area+0xe5/0x2b0 [ 31.640720] [] SyS_mmap_pgoff+0xd0/0x560 [ 31.640725] [] ? find_mergeable_anon_vma+0xd0/0xd0 [ 31.640733] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 31.640739] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.640744] [] SyS_mmap+0x16/0x20 [ 31.640749] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 31.655755] kasan: CONFIG_KASAN_INLINE enabled [ 31.655757] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 31.655767] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 31.655771] Dumping ftrace buffer: [ 31.655775] (ftrace buffer empty) [ 31.655778] Modules linked in: [ 31.655785] CPU: 1 PID: 4063 Comm: syzkaller118423 Not tainted 4.9.78-g7be1985 #24 [ 31.655788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.655792] task: ffff8801d3140000 task.stack: ffff8801d3780000 [ 31.655806] RIP: 0010:[] [] __free_pages+0x21/0x80 [ 31.655810] RSP: 0018:ffff8801d37879b0 EFLAGS: 00010a07 [ 31.655814] RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff8266775b [ 31.655820] RDX: 1bd5a9d5a0000003 RSI: 0000000000000002 RDI: dead4ead0000001c [ 31.655824] RBP: ffff8801d37879c0 R08: 0000000048000000 R09: 0000000000001e30 [ 31.655827] R10: 0000000000002100 R11: ffff8801d3140000 R12: 0000000000000004 [ 31.655831] R13: 0000000000000020 R14: ffff8801b2558000 R15: dffffc0000000000 [ 31.655836] FS: 0000000001175880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 31.655840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 31.655843] CR2: 0000000020a13000 CR3: 00000001d9852000 CR4: 0000000000160670 [ 31.655850] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 31.655853] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 31.655854] Stack: [ 31.655864] 0000000000000001 ffff8801b2558158 ffff8801d3787a20 ffffffff82667781 [ 31.655872] ffff8801b2558170 ffffed00364ab02b ffffed00364ab02e ffff8801b2558168 [ 31.655880] dead4ead00000000 ffff8801b2558140 0000000000000000 0000000000000000 [ 31.655882] Call Trace: [ 31.655892] [] sg_remove_scat.isra.19+0x1c1/0x2d0 [ 31.655898] [] sg_finish_rem_req+0x2b5/0x340 [ 31.655905] [] sg_new_read.isra.20+0x18d/0x3e0 [ 31.655911] [] sg_read+0x8b7/0x1440 [ 31.655919] [] ? __check_object_size+0x174/0x3a9 [ 31.655925] [] ? sg_proc_seq_show_debug+0xd90/0xd90 [ 31.655931] [] ? fsnotify+0xf30/0xf30 [ 31.655939] [] ? avc_policy_seqno+0x9/0x20 [ 31.655947] [] do_loop_readv_writev.part.17+0x141/0x1e0 [ 31.655953] [] ? security_file_permission+0x89/0x1e0 [ 31.655959] [] ? sg_proc_seq_show_debug+0xd90/0xd90 [ 31.655966] [] ? sg_proc_seq_show_debug+0xd90/0xd90 [ 31.655972] [] do_readv_writev+0x520/0x750 [ 31.655978] [] ? vfs_write+0x530/0x530 [ 31.655985] [] ? __pmd_alloc+0x410/0x410 [ 31.655993] [] ? check_preemption_disabled+0x3b/0x200 [ 31.656000] [] ? __inode_security_revalidate+0xd9/0x130 [ 31.656009] [] ? __do_page_fault+0x319/0xd40 [ 31.656015] [] ? __do_page_fault+0x5ec/0xd40 [ 31.656022] [] vfs_readv+0x84/0xc0 [ 31.656028] [] do_readv+0xe6/0x250 [ 31.656034] [] ? vfs_readv+0xc0/0xc0 [ 31.656040] [] ? mm_fault_error+0x2c0/0x2c0 [ 31.656047] [] ? debug_locks_off+0x86/0xa0 [ 31.656053] [] SyS_readv+0x27/0x30 [ 31.656061] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 31.656161] Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d [ 31.656168] RIP [] __free_pages+0x21/0x80 [ 31.656170] RSP [ 31.656178] ---[ end trace 528458f4c2f2525e ]--- [ 31.656181] Kernel panic - not syncing: Fatal exception [ 31.664627] Dumping ftrace buffer: [ 31.664629] (ftrace buffer empty) [ 31.664631] Kernel Offset: disabled [ 32.545737] Rebooting in 86400 seconds..