[ 47.987021][ T26] audit: type=1800 audit(1566215499.962:27): pid=7806 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 48.007450][ T26] audit: type=1800 audit(1566215499.962:28): pid=7806 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 48.555266][ T26] audit: type=1800 audit(1566215500.602:29): pid=7806 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 48.575313][ T26] audit: type=1800 audit(1566215500.602:30): pid=7806 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.143' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 65.305648][ T7959] kasan: CONFIG_KASAN_INLINE enabled [ 65.311216][ T7959] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 65.319248][ T7959] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 65.326146][ T7959] CPU: 1 PID: 7959 Comm: syz-executor611 Not tainted 5.3.0-rc5-next-20190819 #68 [ 65.335213][ T7959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.345241][ T7959] RIP: 0010:xsk_poll+0x95/0x540 [ 65.350063][ T7959] Code: 80 3c 02 00 0f 85 70 04 00 00 4c 8b a3 88 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 96 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 bf 03 00 00 [ 65.369636][ T7959] RSP: 0018:ffff8880926f7850 EFLAGS: 00010207 [ 65.375663][ T7959] RAX: dffffc0000000000 RBX: ffff88809a141700 RCX: ffffffff859b07aa [ 65.383600][ T7959] RDX: 0000000000000012 RSI: ffffffff859b07c4 RDI: 0000000000000096 [ 65.391535][ T7959] RBP: ffff8880926f7880 R08: ffff88809698a580 R09: ffffed1013428329 [ 65.399471][ T7959] R10: ffffed1013428328 R11: ffff88809a141947 R12: 0000000000000000 [ 65.407405][ T7959] R13: 0000000000000304 R14: ffff888095d4d840 R15: ffff888092bdd020 [ 65.415342][ T7959] FS: 0000555557529880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 65.424231][ T7959] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.430776][ T7959] CR2: 0000000020000280 CR3: 0000000098281000 CR4: 00000000001406e0 [ 65.438716][ T7959] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.446773][ T7959] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.454714][ T7959] Call Trace: [ 65.457972][ T7959] ? xsk_setsockopt+0x680/0x680 [ 65.462792][ T7959] sock_poll+0x15e/0x480 [ 65.466999][ T7959] ? __sock_recv_wifi_status+0x1d0/0x1d0 [ 65.472597][ T7959] do_sys_poll+0x7c2/0xde0 [ 65.476979][ T7959] ? mark_held_locks+0xa4/0xf0 [ 65.481711][ T7959] ? compat_core_sys_select+0x770/0x770 [ 65.487220][ T7959] ? __kasan_check_read+0x11/0x20 [ 65.492209][ T7959] ? release_pages+0xd9a/0x1a50 [ 65.497032][ T7959] ? mark_held_locks+0xa4/0xf0 [ 65.501761][ T7959] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 65.507712][ T7959] ? put_pages_list+0x2e0/0x2e0 [ 65.512527][ T7959] ? trace_hardirqs_on+0x67/0x240 [ 65.517513][ T7959] ? __kasan_check_read+0x11/0x20 [ 65.522499][ T7959] ? do_huge_pmd_anonymous_page+0xc13/0x1ad0 [ 65.528442][ T7959] ? find_held_lock+0x35/0x130 [ 65.533171][ T7959] ? __kasan_check_read+0x11/0x20 [ 65.538159][ T7959] ? mark_lock+0xc2/0x1220 [ 65.542540][ T7959] ? poll_initwait+0x180/0x180 [ 65.547269][ T7959] ? set_fd_set.part.0+0x70/0x70 [ 65.552178][ T7959] ? __handle_mm_fault+0x2d35/0x3f20 [ 65.557436][ T7959] ? do_huge_pmd_anonymous_page+0x151b/0x1ad0 [ 65.563468][ T7959] ? lockdep_hardirqs_on+0x418/0x5d0 [ 65.568719][ T7959] ? trace_hardirqs_on+0x67/0x240 [ 65.573710][ T7959] ? do_huge_pmd_anonymous_page+0xd23/0x1ad0 [ 65.579652][ T7959] ? prep_transhuge_page+0xa0/0xa0 [ 65.584730][ T7959] ? __kasan_check_read+0x11/0x20 [ 65.589717][ T7959] ? __lock_acquire+0x8a1/0x4e70 [ 65.594618][ T7959] ? __do_page_fault+0x56a/0xdd0 [ 65.599516][ T7959] ? find_held_lock+0x35/0x130 [ 65.604251][ T7959] ? __do_page_fault+0x56a/0xdd0 [ 65.609166][ T7959] ? lock_downgrade+0x920/0x920 [ 65.613980][ T7959] ? set_user_sigmask+0x166/0x1e0 [ 65.618965][ T7959] ? sigprocmask+0x2b0/0x2b0 [ 65.623518][ T7959] ? __kasan_check_write+0x14/0x20 [ 65.628589][ T7959] ? up_read+0x1d2/0x810 [ 65.632798][ T7959] __x64_sys_ppoll+0x259/0x310 [ 65.637527][ T7959] ? handle_mm_fault+0x1d3/0x6b0 [ 65.642427][ T7959] ? __ia32_sys_poll+0x470/0x470 [ 65.647328][ T7959] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 65.652752][ T7959] ? do_syscall_64+0x26/0x760 [ 65.657395][ T7959] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.663422][ T7959] ? do_syscall_64+0x26/0x760 [ 65.668067][ T7959] ? lockdep_hardirqs_on+0x418/0x5d0 [ 65.673330][ T7959] ? trace_hardirqs_on+0x67/0x240 [ 65.678319][ T7959] do_syscall_64+0xfa/0x760 [ 65.682789][ T7959] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 65.688646][ T7959] RIP: 0033:0x440159 [ 65.692512][ T7959] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.712077][ T7959] RSP: 002b:00007ffd9fbd16e8 EFLAGS: 00000246 ORIG_RAX: 000000000000010f [ 65.720451][ T7959] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440159 [ 65.728506][ T7959] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000020000280 [ 65.736442][ T7959] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 65.744376][ T7959] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019e0 [ 65.752317][ T7959] R13: 0000000000401a70 R14: 0000000000000000 R15: 0000000000000000 [ 65.760270][ T7959] Modules linked in: [ 65.764495][ T7959] ---[ end trace da907175426b4065 ]--- [ 65.769936][ T7959] RIP: 0010:xsk_poll+0x95/0x540 [ 65.774875][ T7959] Code: 80 3c 02 00 0f 85 70 04 00 00 4c 8b a3 88 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 96 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 bf 03 00 00 [ 65.794475][ T7959] RSP: 0018:ffff8880926f7850 EFLAGS: 00010207 [ 65.800527][ T7959] RAX: dffffc0000000000 RBX: ffff88809a141700 RCX: ffffffff859b07aa [ 65.808462][ T7959] RDX: 0000000000000012 RSI: ffffffff859b07c4 RDI: 0000000000000096 [ 65.816421][ T7959] RBP: ffff8880926f7880 R08: ffff88809698a580 R09: ffffed1013428329 [ 65.824378][ T7959] R10: ffffed1013428328 R11: ffff88809a141947 R12: 0000000000000000 [ 65.832338][ T7959] R13: 0000000000000304 R14: ffff888095d4d840 R15: ffff888092bdd020 [ 65.840283][ T7959] FS: 0000555557529880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 65.849194][ T7959] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.855762][ T7959] CR2: 0000000020000280 CR3: 0000000098281000 CR4: 00000000001406e0 [ 65.863719][ T7959] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.871679][ T7959] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.879615][ T7959] Kernel panic - not syncing: Fatal exception [ 65.886722][ T7959] Kernel Offset: disabled [ 65.891034][ T7959] Rebooting in 86400 seconds..