[ 16.661858] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available) [....] 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 syzkaller login: [ 22.361223] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 22.707170] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 23.571104] random: sshd: uninitialized urandom read (32 bytes read, 106 bits of entropy available) [ 23.747350] random: sshd: uninitialized urandom read (32 bytes read, 110 bits of entropy available) Warning: Permanently added '10.128.15.236' (ECDSA) to the list of known hosts. [ 29.126704] random: sshd: uninitialized urandom read (32 bytes read, 118 bits of entropy available) net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz3.accept_dad = 0 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz0.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 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 "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 "vcan0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" 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" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" RTNETLINK answers: Operation not supported Cannot find device "vcan0" RTNETLINK answers: Operation not supported Cannot find device "gre0" RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Cannot find device "gre0" RTNETLINK answers: Operation not supported 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 "gretap0" 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 "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 "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 "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "gretap0" 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 "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 "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 "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 "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 "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_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 "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 "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 "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6_vti0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" 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 "ip6tnl0" 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 "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" 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 "ip6gre0" Cannot find device "ip6gre0" Cannot find device "ip6tnl0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" 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 "ip6gre0" Cannot find device "ip6gretap0" 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 "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "ip6gre0" Cannot find device "ip6gretap0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "ip6gretap0" [ 34.583176] random: nonblocking pool is initialized 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 "erspan0" 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 "erspan0" Cannot find device "erspan0" executing program 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 "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6gretap0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" executing program Cannot find device "erspan0" executing program executing program executing program Cannot find device "erspan0" Cannot find device "erspan0" executing program executing program executing program executing program Cannot find device "erspan0" executing program Cannot find device "erspan0" executing program Cannot find device "erspan0" executing program Cannot find device "erspan0" executing program executing program executing program Cannot find device "erspan0" Cannot find device "erspan0" 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 Cannot find device "erspan0" executing program Cannot find device "erspan0" 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 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 Cannot find device "erspan0" 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 [ 36.582814] kasan: CONFIG_KASAN_INLINE enabled [ 36.588227] BUG: spinlock bad magic on CPU#1, syzkaller793893/3324 [ 36.594866] lock: 0xffff8801cb454218, .magic: dead4eac, .owner: /-1, .owner_cpu: -1 [ 36.603244] CPU: 1 PID: 3324 Comm: syzkaller793893 Not tainted 4.4.111-g7902639 #18 [ 36.611009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.620333] 0000000000000000 6d3fbb10b5a99f7c ffff8801db3078d8 ffffffff81d0509d [ 36.628313] ffff8801cb454218 ffff8801d122af80 0000000000000001 0000000000000001 [ 36.636311] 0000000000000000 ffff8801db307918 ffffffff81245acd 0000000000000000 [ 36.644289] Call Trace: [ 36.646845] [] dump_stack+0xc1/0x124 [ 36.652940] [] spin_dump+0x14d/0x280 [ 36.658279] [] do_raw_spin_lock+0x228/0x2c0 [ 36.664224] [] _raw_spin_lock_irqsave+0x56/0x70 [ 36.670515] [] ? __wake_up+0x1e/0x50 [ 36.675850] [] __wake_up+0x1e/0x50 [ 36.681013] [] sg_rq_end_io+0x5dc/0xbc0 [ 36.686611] [] ? sg_release+0x1f0/0x1f0 [ 36.692209] [] ? blk_account_io_done+0xb1/0x860 [ 36.698503] [] ? blk_update_request+0x64e/0xce0 [ 36.704796] [] ? sg_release+0x1f0/0x1f0 [ 36.710393] [] __blk_mq_end_request+0x54/0xc0 [ 36.716511] [] scsi_end_request+0x135/0x5b0 [ 36.722455] [] scsi_io_completion+0x15c3/0x1710 [ 36.728747] [] ? scsi_unblock_requests+0x50/0x50 [ 36.735125] [] ? scsi_handle_queue_ramp_up+0x332/0x440 [ 36.742028] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 36.749015] [] scsi_finish_command+0x3af/0x520 [ 36.755222] [] scsi_softirq_done+0x250/0x350 [ 36.761254] [] __blk_mq_complete_request+0x205/0x500 [ 36.767979] [] blk_mq_complete_request+0x5b/0x70 [ 36.774355] [] scsi_mq_done+0xfb/0x3c0 [ 36.779870] [] virtscsi_complete_cmd+0x5cf/0x7f0 [ 36.786249] [] ? virtscsi_remove+0x140/0x140 [ 36.792282] [] virtscsi_vq_done+0xc9/0x170 [ 36.798142] [] ? virtscsi_target_destroy+0x50/0x50 [ 36.804693] [] virtscsi_req_done+0xa7/0xd0 [ 36.810549] [] ? virtscsi_vq_done+0x170/0x170 [ 36.816670] [] vring_interrupt+0x109/0x150 [ 36.822526] [] ? vring_new_virtqueue+0x7c0/0x7c0 [ 36.828904] [] handle_irq_event_percpu+0xf1/0x960 [ 36.835370] [] handle_irq_event+0xa7/0x140 [ 36.841227] [] handle_edge_irq+0x1fa/0x8e0 [ 36.847087] [] ? __local_bh_enable+0x32/0x60 [ 36.853117] [] handle_irq+0x250/0x3a0 [ 36.858541] [] ? check_preemption_disabled+0x3b/0x200 [ 36.865358] [] do_IRQ+0x89/0x1b0 [ 36.870350] [] common_interrupt+0xa0/0xa0 [ 36.876118] [] ? get_page_from_freelist+0x793/0x1a70 [ 36.883944] [] __alloc_pages_nodemask+0x2c7/0x16e0 [ 36.890499] [] ? sg_write+0x6d3/0xb70 [ 36.895936] [] ? pte_alloc_one+0x62/0x100 [ 36.901707] [] ? sg_ioctl+0x2c20/0x2c20 [ 36.907306] [] ? __alloc_pages_direct_compact+0x250/0x250 [ 36.914467] [] ? __lock_is_held+0xa1/0xf0 [ 36.920238] [] ? anon_vma_prepare+0x62/0x3d0 [ 36.926270] [] do_huge_pmd_anonymous_page+0x205/0xa10 executing program executing program executing program executing program [ 36.933084] [] handle_mm_fault+0x271a/0x3190 [ 36.939117] [] ? rw_verify_area+0x100/0x2f0 [ 36.945062] [] ? copy_page_range+0x14a0/0x14a0 [ 36.951268] [] ? vmacache_find+0x59/0x290 [ 36.957040] [] __do_page_fault+0x35b/0xa00 [ 36.962896] [] do_page_fault+0x27/0x30 [ 36.968406] [] page_fault+0x28/0x30 [ 37.010370] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.011292] kasan: CONFIG_KASAN_INLINE enabledkasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN [ 37.011310] Dumping ftrace buffer: [ 37.011313] (ftrace buffer empty) [ 37.011315] Modules linked in: [ 37.011323] CPU: 1 PID: 3322 Comm: syzkaller793893 Not tainted 4.4.111-g7902639 #18 [ 37.011326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.011330] task: ffff8801d23a17c0 task.stack: ffff8801d0a00000 [ 37.011333] RIP: 0010:[] [] __free_pages+0x21/0x90 [ 37.011351] RSP: 0018:ffff8801d0a07970 EFLAGS: 00010a07 [ 37.011355] RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff825b9ebb [ 37.011358] RDX: 1bd5a9d5a0000003 RSI: 0000000000000001 RDI: dead4ead0000001c [ 37.011362] RBP: ffff8801d0a07980 R08: 0000000000000000 R09: 0000000000000000 [ 37.011365] R10: 0000000000000000 R11: 1ffff1003a140f0c R12: 0000000000000004 [ 37.011369] R13: 0000000000000020 R14: ffff8801cb47c200 R15: dffffc0000000000 [ 37.011374] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:0000000008d79900 [ 37.011377] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 37.011381] CR2: 0000000020b16000 CR3: 00000001d12a6000 CR4: 0000000000160670 [ 37.011386] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.011390] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.011391] Stack: [ 37.011393] 0000000000000246 ffff8801cb47c358 ffff8801d0a079e0 ffffffff825b9ee1 [ 37.011401] ffff8801cb47c370 ffffed003968f86b ffffed003968f86e ffff8801cb47c368 [ 37.011408] dead4ead00000000 ffff8801cb47c340 0000000000000000 0000000000000000 [ 37.011415] Call Trace: [ 37.011425] [] sg_remove_scat.isra.17+0x1c1/0x2d0 [ 37.011432] [] sg_finish_rem_req+0x2b5/0x340 [ 37.011438] [] sg_new_read.isra.18+0x336/0x3c0 [ 37.011444] [] sg_read+0x8c2/0x1490 [ 37.011451] [] ? sg_ioctl+0x2c20/0x2c20 [ 37.011457] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 37.011463] [] ? fsnotify+0xee0/0xee0 [ 37.011472] [] ? avc_policy_seqno+0x9/0x20 [ 37.011481] [] do_loop_readv_writev+0x141/0x1e0 [ 37.011487] [] ? security_file_permission+0x89/0x1e0 [ 37.011494] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 37.011500] [] ? sg_proc_seq_show_debug+0xd30/0xd30 [ 37.011507] [] compat_do_readv_writev+0x5df/0x6e0 [ 37.011513] [] ? vfs_writev+0xb0/0xb0 [ 37.011520] [] ? __lru_cache_add+0x164/0x240 [ 37.011527] [] ? _raw_spin_unlock+0x2c/0x50 [ 37.011535] [] ? handle_mm_fault+0x3f2/0x3190 [ 37.011541] [] ? rw_verify_area+0x100/0x2f0 [ 37.011548] [] compat_readv+0xd9/0x140 [ 37.011553] [] compat_SyS_readv+0xd8/0x1b0 [ 37.011559] [] ? SyS_pwritev+0x230/0x230 [ 37.011564] [] ? SyS_pwritev+0x230/0x230 [ 37.011571] [] do_fast_syscall_32+0x314/0x890 [ 37.011578] [] sysenter_flags_fixed+0xd/0x17 [ 37.011580] Code: 96 a4 0c 00 e9 78 fd ff ff 90 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 49 [ 37.011679] RIP [] __free_pages+0x21/0x90 [ 37.011686] RSP [ 37.011691] ---[ end trace f075a076e6d0a1ec ]--- [ 37.011695] Kernel panic - not syncing: Fatal exception [ 37.017997] Dumping ftrace buffer: [ 37.017999] (ftrace buffer empty) [ 37.018001] Kernel Offset: disabled [ 37.382300] Rebooting in 86400 seconds..