[ 42.499977] audit: type=1800 audit(1582565951.191:30): pid=7872 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0 [ 42.535057] audit: type=1800 audit(1582565951.191:31): pid=7872 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [....] 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 '10.128.0.111' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.813363] kauditd_printk_skb: 4 callbacks suppressed [ 50.813380] audit: type=1400 audit(1582565959.541:36): avc: denied { map } for pid=8056 comm="syz-executor496" path="/root/syz-executor496232398" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 50.816795] ------------[ cut here ]------------ [ 50.849724] kernel BUG at arch/x86/mm/physaddr.c:27! [ 50.854816] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 50.860163] CPU: 0 PID: 8056 Comm: syz-executor496 Not tainted 4.19.106-syzkaller #0 [ 50.868019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.877363] RIP: 0010:__phys_addr+0xb3/0x120 [ 50.881760] Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 d6 56 39 00 48 85 db 75 0f e8 2c 55 39 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 1d 55 39 00 <0f> 0b e8 16 55 39 00 48 c7 c0 10 50 e7 88 48 ba 00 00 00 00 00 fc [ 50.900651] RSP: 0018:ffff888097577540 EFLAGS: 00010093 [ 50.905994] RAX: ffff888077ba8640 RBX: 0000000074ad0ef0 RCX: ffffffff81318722 [ 50.913361] RDX: 0000000000000000 RSI: ffffffff81318783 RDI: 0000000000000006 [ 50.920616] RBP: ffff888097577558 R08: ffff888077ba8640 R09: ffffed1015d04733 [ 50.927869] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000778074ad0ef0 [ 50.935127] R13: 00000000f4ad0ef0 R14: ffff88809d24a540 R15: 0000000000000010 [ 50.942378] FS: 00000000008fe880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 50.950610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.956475] CR2: 00000000200004c0 CR3: 0000000078aea000 CR4: 00000000001406f0 [ 50.963759] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.971007] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.978256] Call Trace: [ 50.980827] ? audit_data_to_entry+0xb7b/0x2650 [ 50.985478] kfree+0x7b/0x220 [ 50.988567] audit_data_to_entry+0xb7b/0x2650 [ 50.993051] ? audit_unpack_string+0x1d0/0x1d0 [ 50.997620] audit_rule_change+0x642/0x1120 [ 51.001924] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.007444] ? audit_del_rule+0x660/0x660 [ 51.011573] ? ns_capable+0x20/0x30 [ 51.015182] ? __netlink_ns_capable+0x104/0x140 [ 51.019860] audit_receive_msg+0xd1d/0x2590 [ 51.024175] ? audit_log_feature_change.part.0+0x160/0x160 [ 51.029783] ? mutex_trylock+0x1e0/0x1e0 [ 51.033832] ? netlink_deliver_tap+0x22d/0xc20 [ 51.038440] ? lock_downgrade+0x880/0x880 [ 51.042574] ? kasan_check_read+0x11/0x20 [ 51.046704] audit_receive+0x11a/0x240 [ 51.050575] ? netlink_skb_set_owner_r+0x18e/0x200 [ 51.055493] netlink_unicast+0x53a/0x730 [ 51.059543] ? netlink_attachskb+0x770/0x770 [ 51.063940] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.069478] netlink_sendmsg+0x8ae/0xd70 [ 51.073525] ? netlink_unicast+0x730/0x730 [ 51.077743] ? selinux_socket_sendmsg+0x36/0x40 [ 51.082390] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.087907] ? security_socket_sendmsg+0x8d/0xc0 [ 51.092642] ? netlink_unicast+0x730/0x730 [ 51.096858] sock_sendmsg+0xd7/0x130 [ 51.100553] ___sys_sendmsg+0x803/0x920 [ 51.104509] ? copy_msghdr_from_user+0x430/0x430 [ 51.109250] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.114774] ? __handle_mm_fault+0x7d1/0x3f80 [ 51.119641] ? copy_page_range+0x2030/0x2030 [ 51.124035] ? __do_page_fault+0x676/0xe90 [ 51.128249] ? find_held_lock+0x35/0x130 [ 51.132291] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.137808] ? __fget_light+0x1a9/0x230 [ 51.141803] ? __fdget+0x1b/0x20 [ 51.145151] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.150668] __sys_sendmsg+0x105/0x1d0 [ 51.154574] ? __ia32_sys_shutdown+0x80/0x80 [ 51.158994] ? up_read+0x1a/0x110 [ 51.162432] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.167168] ? do_syscall_64+0x26/0x620 [ 51.171135] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.176477] ? do_syscall_64+0x26/0x620 [ 51.180434] __x64_sys_sendmsg+0x78/0xb0 [ 51.184479] do_syscall_64+0xfd/0x620 [ 51.188306] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.193474] RIP: 0033:0x440cf9 [ 51.196648] 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 [ 51.216032] RSP: 002b:00007ffd3bbac6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.223724] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440cf9 [ 51.230973] RDX: 0000000000000000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 51.238222] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 51.245470] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402580 [ 51.252719] R13: 0000000000402610 R14: 0000000000000000 R15: 0000000000000000 [ 51.260000] Modules linked in: [ 51.263181] ---[ end trace d3b4582f14c45fed ]--- [ 51.267919] RIP: 0010:__phys_addr+0xb3/0x120 [ 51.272309] Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 d6 56 39 00 48 85 db 75 0f e8 2c 55 39 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 1d 55 39 00 <0f> 0b e8 16 55 39 00 48 c7 c0 10 50 e7 88 48 ba 00 00 00 00 00 fc [ 51.291189] RSP: 0018:ffff888097577540 EFLAGS: 00010093 [ 51.296530] RAX: ffff888077ba8640 RBX: 0000000074ad0ef0 RCX: ffffffff81318722 [ 51.303794] RDX: 0000000000000000 RSI: ffffffff81318783 RDI: 0000000000000006 [ 51.311041] RBP: ffff888097577558 R08: ffff888077ba8640 R09: ffffed1015d04733 [ 51.318303] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000778074ad0ef0 [ 51.325594] R13: 00000000f4ad0ef0 R14: ffff88809d24a540 R15: 0000000000000010 [ 51.332852] FS: 00000000008fe880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 51.341082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.346984] CR2: 00000000200004c0 CR3: 0000000078aea000 CR4: 00000000001406f0 [ 51.354271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.361522] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.368774] Kernel panic - not syncing: Fatal exception [ 51.375348] Kernel Offset: disabled [ 51.378974] Rebooting in 86400 seconds..