[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.546429][ T23] audit: type=1800 audit(1582443752.668:25): pid=9224 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.566689][ T23] audit: type=1800 audit(1582443752.668:26): pid=9224 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.587157][ T23] audit: type=1800 audit(1582443752.678:27): pid=9224 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 '10.128.0.158' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 70.474897][ T9377] ------------[ cut here ]------------ [ 70.480510][ T9377] kernel BUG at arch/x86/mm/physaddr.c:28! [ 70.486296][ T9377] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 70.492337][ T9377] CPU: 1 PID: 9377 Comm: syz-executor140 Not tainted 5.6.0-rc2-syzkaller #0 [ 70.501048][ T9377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.511093][ T9377] RIP: 0010:__phys_addr+0xb3/0x120 [ 70.516184][ T9377] Code: 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 e6 db 40 00 48 85 db 75 0f e8 3c da 40 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 2d da 40 00 <0f> 0b e8 26 da 40 00 48 c7 c0 10 50 a7 89 48 ba 00 00 00 00 00 fc [ 70.535881][ T9377] RSP: 0018:ffffc9000659f490 EFLAGS: 00010093 [ 70.541929][ T9377] RAX: ffff888092a740c0 RBX: 0000000074ad0ef0 RCX: ffffffff8134ad32 [ 70.549880][ T9377] RDX: 0000000000000000 RSI: ffffffff8134ad93 RDI: 0000000000000006 [ 70.557833][ T9377] RBP: ffffc9000659f4a8 R08: ffff888092a740c0 R09: ffffed1015d2707c [ 70.565781][ T9377] R10: ffffed1015d2707b R11: ffff8880ae9383db R12: 0000778074ad0ef0 [ 70.573733][ T9377] R13: 00000000f4ad0ef0 R14: ffff8880a2988c00 R15: 0000000000000010 [ 70.581682][ T9377] FS: 00000000006e9880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 70.590584][ T9377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.597260][ T9377] CR2: 00000000200004c0 CR3: 00000000973e1000 CR4: 00000000001406e0 [ 70.605206][ T9377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.613163][ T9377] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.621109][ T9377] Call Trace: [ 70.624385][ T9377] ? audit_data_to_entry+0xb7b/0x25f0 [ 70.629729][ T9377] kfree+0x7b/0x2c0 [ 70.633512][ T9377] audit_data_to_entry+0xb7b/0x25f0 [ 70.638771][ T9377] ? audit_unpack_string+0x1d0/0x1d0 [ 70.644038][ T9377] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 70.649466][ T9377] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.655674][ T9377] ? cap_capable+0x205/0x270 [ 70.660230][ T9377] audit_rule_change+0x6b5/0x1130 [ 70.665228][ T9377] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.671437][ T9377] ? audit_del_rule+0x660/0x660 [ 70.676293][ T9377] ? ns_capable+0x20/0x30 [ 70.680642][ T9377] ? __netlink_ns_capable+0x104/0x140 [ 70.685988][ T9377] audit_receive_msg+0xda5/0x28b0 [ 70.690985][ T9377] ? audit_log_feature_change.part.0+0x150/0x150 [ 70.697295][ T9377] ? mutex_trylock+0x2d0/0x2d0 [ 70.702061][ T9377] ? lock_downgrade+0x920/0x920 [ 70.706895][ T9377] ? __kasan_check_read+0x11/0x20 [ 70.711895][ T9377] audit_receive+0x114/0x230 [ 70.716459][ T9377] ? netlink_skb_set_owner_r+0x18e/0x200 [ 70.722066][ T9377] netlink_unicast+0x59e/0x7e0 [ 70.726812][ T9377] ? netlink_attachskb+0x870/0x870 [ 70.731904][ T9377] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 70.737596][ T9377] ? __check_object_size+0x3d/0x437 [ 70.742770][ T9377] netlink_sendmsg+0x91c/0xea0 [ 70.747510][ T9377] ? netlink_unicast+0x7e0/0x7e0 [ 70.752421][ T9377] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 70.757943][ T9377] ? apparmor_socket_sendmsg+0x2a/0x30 [ 70.763380][ T9377] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.769589][ T9377] ? security_socket_sendmsg+0x8d/0xc0 [ 70.775032][ T9377] ? netlink_unicast+0x7e0/0x7e0 [ 70.779952][ T9377] sock_sendmsg+0xd7/0x130 [ 70.784346][ T9377] ____sys_sendmsg+0x753/0x880 [ 70.789089][ T9377] ? kernel_sendmsg+0x50/0x50 [ 70.793747][ T9377] ___sys_sendmsg+0x100/0x170 [ 70.798438][ T9377] ? sendmsg_copy_msghdr+0x70/0x70 [ 70.803522][ T9377] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 70.809478][ T9377] ? prep_transhuge_page+0xa0/0xa0 [ 70.814570][ T9377] ? do_page_fault+0x579/0x12e1 [ 70.819396][ T9377] ? find_held_lock+0x35/0x130 [ 70.824133][ T9377] ? do_page_fault+0x579/0x12e1 [ 70.828961][ T9377] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.835175][ T9377] ? __fget_light+0x1ad/0x270 [ 70.839825][ T9377] ? __fdget+0x1b/0x20 [ 70.843872][ T9377] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.850091][ T9377] __sys_sendmsg+0x105/0x1d0 [ 70.854659][ T9377] ? __sys_sendmsg_sock+0xc0/0xc0 [ 70.859666][ T9377] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 70.865099][ T9377] ? do_syscall_64+0x26/0x790 [ 70.869753][ T9377] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.875791][ T9377] ? do_syscall_64+0x26/0x790 [ 70.880448][ T9377] __x64_sys_sendmsg+0x78/0xb0 [ 70.885190][ T9377] do_syscall_64+0xfa/0x790 [ 70.889672][ T9377] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.895537][ T9377] RIP: 0033:0x440cf9 [ 70.899408][ T9377] 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 [ 70.919020][ T9377] RSP: 002b:00007fffb5493d58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.927402][ T9377] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440cf9 [ 70.935391][ T9377] RDX: 0000000000000000 RSI: 00000000200004c0 RDI: 0000000000000003 [ 70.943342][ T9377] RBP: 00000000006cb018 R08: 0000000000000000 R09: 00000000004002c8 [ 70.951286][ T9377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402580 [ 70.959229][ T9377] R13: 0000000000402610 R14: 0000000000000000 R15: 0000000000000000 [ 70.967195][ T9377] Modules linked in: [ 70.971081][ T9377] ---[ end trace 8c7e870919ee1ee4 ]--- [ 70.976517][ T9377] RIP: 0010:__phys_addr+0xb3/0x120 [ 70.981605][ T9377] Code: 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 e6 db 40 00 48 85 db 75 0f e8 3c da 40 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 2d da 40 00 <0f> 0b e8 26 da 40 00 48 c7 c0 10 50 a7 89 48 ba 00 00 00 00 00 fc [ 71.001195][ T9377] RSP: 0018:ffffc9000659f490 EFLAGS: 00010093 [ 71.007237][ T9377] RAX: ffff888092a740c0 RBX: 0000000074ad0ef0 RCX: ffffffff8134ad32 [ 71.015181][ T9377] RDX: 0000000000000000 RSI: ffffffff8134ad93 RDI: 0000000000000006 [ 71.023139][ T9377] RBP: ffffc9000659f4a8 R08: ffff888092a740c0 R09: ffffed1015d2707c [ 71.031085][ T9377] R10: ffffed1015d2707b R11: ffff8880ae9383db R12: 0000778074ad0ef0 [ 71.039140][ T9377] R13: 00000000f4ad0ef0 R14: ffff8880a2988c00 R15: 0000000000000010 [ 71.047090][ T9377] FS: 00000000006e9880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 71.055988][ T9377] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.062540][ T9377] CR2: 00000000200004c0 CR3: 00000000973e1000 CR4: 00000000001406e0 [ 71.070482][ T9377] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.078424][ T9377] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.086374][ T9377] Kernel panic - not syncing: Fatal exception [ 71.093531][ T9377] Kernel Offset: disabled [ 71.097849][ T9377] Rebooting in 86400 seconds..