[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 81.181114][ T27] audit: type=1800 audit(1582333735.294:25): pid=9722 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 81.201583][ T27] audit: type=1800 audit(1582333735.294:26): pid=9722 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 81.230731][ T27] audit: type=1800 audit(1582333735.294:27): pid=9722 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 93.035200][ T9873] ------------[ cut here ]------------ [ 93.040824][ T9873] kernel BUG at arch/x86/mm/physaddr.c:28! [ 93.046652][ T9873] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 93.052716][ T9873] CPU: 1 PID: 9873 Comm: syz-executor039 Not tainted 5.6.0-rc1-syzkaller #0 [ 93.061379][ T9873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.071473][ T9873] RIP: 0010:__phys_addr+0xb3/0x120 [ 93.076604][ T9873] Code: 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 36 e2 40 00 48 85 db 75 0f e8 8c e0 40 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 7d e0 40 00 <0f> 0b e8 76 e0 40 00 48 c7 c0 10 50 a7 89 48 ba 00 00 00 00 00 fc [ 93.096344][ T9873] RSP: 0018:ffffc90005b47490 EFLAGS: 00010093 [ 93.102391][ T9873] RAX: ffff8880944f4600 RBX: 0000000002777259 RCX: ffffffff8134ad32 [ 93.110342][ T9873] RDX: 0000000000000000 RSI: ffffffff8134ad93 RDI: 0000000000000006 [ 93.118291][ T9873] RBP: ffffc90005b474a8 R08: ffff8880944f4600 R09: ffffed1015d2707c [ 93.126290][ T9873] R10: ffffed1015d2707b R11: ffff8880ae9383db R12: 0000778002777259 [ 93.134252][ T9873] R13: 0000000082777259 R14: ffff88809a765000 R15: 0000000000000010 [ 93.142207][ T9873] FS: 0000000001436880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.151114][ T9873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.157672][ T9873] CR2: 00000000200004c0 CR3: 0000000096da8000 CR4: 00000000001406e0 [ 93.165622][ T9873] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.173570][ T9873] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.181516][ T9873] Call Trace: [ 93.184790][ T9873] ? audit_data_to_entry+0xb7b/0x25f0 [ 93.190140][ T9873] kfree+0x7b/0x2c0 [ 93.193947][ T9873] audit_data_to_entry+0xb7b/0x25f0 [ 93.199125][ T9873] ? audit_unpack_string+0x1d0/0x1d0 [ 93.204388][ T9873] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 93.209830][ T9873] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.216185][ T9873] ? cap_capable+0x205/0x270 [ 93.220776][ T9873] audit_rule_change+0x6b5/0x1130 [ 93.225786][ T9873] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.232002][ T9873] ? audit_del_rule+0x660/0x660 [ 93.236852][ T9873] ? ns_capable+0x20/0x30 [ 93.241191][ T9873] ? __netlink_ns_capable+0x104/0x140 [ 93.246558][ T9873] audit_receive_msg+0xda5/0x28b0 [ 93.251573][ T9873] ? audit_log_feature_change.part.0+0x150/0x150 [ 93.257898][ T9873] ? mutex_trylock+0x2d0/0x2d0 [ 93.262649][ T9873] ? lock_downgrade+0x920/0x920 [ 93.267480][ T9873] ? __kasan_check_read+0x11/0x20 [ 93.272489][ T9873] audit_receive+0x114/0x230 [ 93.277073][ T9873] ? netlink_skb_set_owner_r+0x18e/0x200 [ 93.282704][ T9873] netlink_unicast+0x59e/0x7e0 [ 93.287469][ T9873] ? netlink_attachskb+0x870/0x870 [ 93.292642][ T9873] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 93.298347][ T9873] ? __check_object_size+0x3d/0x437 [ 93.303550][ T9873] netlink_sendmsg+0x91c/0xea0 [ 93.308307][ T9873] ? netlink_unicast+0x7e0/0x7e0 [ 93.313239][ T9873] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 93.318772][ T9873] ? apparmor_socket_sendmsg+0x2a/0x30 [ 93.324212][ T9873] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.330445][ T9873] ? security_socket_sendmsg+0x8d/0xc0 [ 93.335899][ T9873] ? netlink_unicast+0x7e0/0x7e0 [ 93.340834][ T9873] sock_sendmsg+0xd7/0x130 [ 93.345254][ T9873] ____sys_sendmsg+0x753/0x880 [ 93.350043][ T9873] ? kernel_sendmsg+0x50/0x50 [ 93.354737][ T9873] ___sys_sendmsg+0x100/0x170 [ 93.359422][ T9873] ? sendmsg_copy_msghdr+0x70/0x70 [ 93.364535][ T9873] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 93.370526][ T9873] ? prep_transhuge_page+0xa0/0xa0 [ 93.375648][ T9873] ? do_page_fault+0x579/0x12e1 [ 93.380509][ T9873] ? find_held_lock+0x35/0x130 [ 93.385284][ T9873] ? do_page_fault+0x579/0x12e1 [ 93.395405][ T9873] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.403131][ T9873] ? __fget_light+0x1ad/0x270 [ 93.407818][ T9873] ? __fdget+0x1b/0x20 [ 93.411890][ T9873] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.418138][ T9873] __sys_sendmsg+0x105/0x1d0 [ 93.422717][ T9873] ? __sys_sendmsg_sock+0xc0/0xc0 [ 93.427731][ T9873] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 93.433169][ T9873] ? do_syscall_64+0x26/0x790 [ 93.437825][ T9873] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.443886][ T9873] ? do_syscall_64+0x26/0x790 [ 93.448570][ T9873] __x64_sys_sendmsg+0x78/0xb0 [ 93.453325][ T9873] do_syscall_64+0xfa/0x790 [ 93.457824][ T9873] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.463710][ T9873] RIP: 0033:0x4401a9 [ 93.467620][ T9873] 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 [ 93.487222][ T9873] RSP: 002b:00007ffd66553d28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 93.495617][ T9873] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401a9 [ 93.503568][ T9873] RDX: 0000000000000000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 93.511532][ T9873] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 93.519480][ T9873] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a30 [ 93.527444][ T9873] R13: 0000000000401ac0 R14: 0000000000000000 R15: 0000000000000000 [ 93.535399][ T9873] Modules linked in: [ 93.539276][ T9873] ---[ end trace 1e4db35053a9d748 ]--- [ 93.544721][ T9873] RIP: 0010:__phys_addr+0xb3/0x120 [ 93.549810][ T9873] Code: 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 36 e2 40 00 48 85 db 75 0f e8 8c e0 40 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 7d e0 40 00 <0f> 0b e8 76 e0 40 00 48 c7 c0 10 50 a7 89 48 ba 00 00 00 00 00 fc [ 93.569392][ T9873] RSP: 0018:ffffc90005b47490 EFLAGS: 00010093 [ 93.575434][ T9873] RAX: ffff8880944f4600 RBX: 0000000002777259 RCX: ffffffff8134ad32 [ 93.583401][ T9873] RDX: 0000000000000000 RSI: ffffffff8134ad93 RDI: 0000000000000006 [ 93.591349][ T9873] RBP: ffffc90005b474a8 R08: ffff8880944f4600 R09: ffffed1015d2707c [ 93.599300][ T9873] R10: ffffed1015d2707b R11: ffff8880ae9383db R12: 0000778002777259 [ 93.607248][ T9873] R13: 0000000082777259 R14: ffff88809a765000 R15: 0000000000000010 [ 93.615198][ T9873] FS: 0000000001436880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 93.624100][ T9873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.630674][ T9873] CR2: 00000000200004c0 CR3: 0000000096da8000 CR4: 00000000001406e0 [ 93.638629][ T9873] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.646593][ T9873] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.654548][ T9873] Kernel panic - not syncing: Fatal exception [ 93.662034][ T9873] Kernel Offset: disabled [ 93.666363][ T9873] Rebooting in 86400 seconds..