[ 9.034537][ T22] audit: type=1107 audit(1600886636.129:7): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 msg='avc: denied { status } for auid=n/a uid=0 gid=0 path="/lib/systemd/system/systemd-timesyncd.service" cmdline="systemctl try-restart systemd-timesyncd.service" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=service [ 9.034537][ T22] exe="/lib/systemd/systemd" sauid=0 hostname=? addr=? terminal=?' Starting Network Time Synchronization... [ OK ] Started Network Time Synchronization. [ OK ] Started Raise network interfaces. [ OK ] Reached target Network. Starting OpenBSD Secure Shell server... Starting Permit User Sessions... [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. executing program [* ] A start job is running for dev-ttyS0.device (8s / 1min 30s) [** ] A start job is running for dev-ttyS0.device (9s / 1min 30s) [*** ] A start job is running for dev-ttyS0.device (9s / 1min 30s) [ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s) [ *** ] A start job is running for dev-ttyS0.device (10s / 1min 30s) [ ***] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ 17.769167][ T22] audit: type=1400 audit(1600886644.967:8): avc: denied { execmem } for pid=342 comm="syz-executor808" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 17.796264][ T343] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 17.806163][ T343] Quota error (device loop0): qtree_write_dquot: Error -2147481216 occurred while creating quota [ 17.818418][ T343] BUG: unable to handle page fault for address: fffffbfff000013c [ 17.826284][ T343] #PF: supervisor read access in kernel mode [ 17.832588][ T343] #PF: error_code(0x0000) - not-present page [ 17.838534][ T343] PGD 21fff3067 P4D 21fff3067 PUD 21ffb6067 PMD 0 [ 17.845047][ T343] Oops: 0000 [#1] PREEMPT SMP KASAN [ 17.850235][ T343] CPU: 0 PID: 343 Comm: syz-executor808 Not tainted 5.4.65-syzkaller-00175-g63d1c2f0b547 #0 [ 17.860376][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.870768][ T343] RIP: 0010:check_memory_region+0x70/0x2f0 [ 17.876547][ T343] Code: 49 bd 01 00 00 00 00 fc ff df 4d 01 ea 4d 89 d6 4d 29 ce 49 83 fe 10 7f 2b 4d 85 f6 0f 84 b9 01 00 00 4c 89 cb 4c 29 d3 66 90 <45> 0f b6 19 45 84 db 0f 85 03 02 00 00 49 ff c1 48 ff c3 75 eb e9 [ 17.897295][ T343] RSP: 0018:ffff8881ce3df7d0 EFLAGS: 00010297 [ 17.903506][ T343] RAX: 1ead3abe3636ab01 RBX: ffffffffffffffff RCX: ffffffff818f09d4 [ 17.911468][ T343] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff800009e4 [ 17.919416][ T343] RBP: ffffffff80000980 R08: dffffc0000000000 R09: fffffbfff000013c [ 17.927359][ T343] R10: fffffbfff000013d R11: 0000000000000004 R12: 1ffffffff000013c [ 17.935336][ T343] R13: dffffc0000000001 R14: 0000000000000001 R15: ffffffff800009e4 [ 17.943313][ T343] FS: 0000000000d4b880(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 [ 17.952402][ T343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.958963][ T343] CR2: fffffbfff000013c CR3: 0000000004c0e003 CR4: 00000000001606f0 [ 17.966939][ T343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 17.975804][ T343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 17.984105][ T343] Call Trace: [ 17.987377][ T343] dqput+0x74/0x770 [ 17.991175][ T343] ? ext4_es_lookup_extent+0x900/0x900 [ 17.996611][ T343] dquot_drop+0x1dd/0x2a0 [ 18.001351][ T343] ext4_clear_inode+0x4c/0x170 [ 18.006255][ T343] ext4_evict_inode+0x714/0x1a70 [ 18.011181][ T343] ? sb_clear_inode_writeback+0x2c0/0x2c0 [ 18.017262][ T343] ? ext4_truncate_restart_trans+0xe0/0xe0 [ 18.023415][ T343] ? _raw_spin_trylock_bh+0x190/0x190 [ 18.028776][ T343] ? mempool_free+0x84/0x380 [ 18.033462][ T343] ? ext4_truncate_restart_trans+0xe0/0xe0 [ 18.039243][ T343] evict+0x29b/0x6a0 [ 18.043128][ T343] ? list_lru_del+0x3fc/0x440 [ 18.047802][ T343] evict_inodes+0x608/0x690 [ 18.052400][ T343] ? clear_inode+0x180/0x180 [ 18.057003][ T343] ? sync_filesystem+0x19e/0x200 [ 18.061953][ T343] generic_shutdown_super+0x8f/0x2a0 [ 18.067741][ T343] kill_block_super+0x79/0xd0 [ 18.072408][ T343] deactivate_locked_super+0xaf/0x100 [ 18.077901][ T343] deactivate_super+0x1b8/0x280 [ 18.082843][ T343] ? deactivate_locked_super+0x100/0x100 [ 18.088533][ T343] ? dput+0x4ed/0x5e0 [ 18.092502][ T343] ? _raw_spin_lock_irq+0xa2/0x180 [ 18.097583][ T343] ? find_next_bit+0xd8/0x120 [ 18.102236][ T343] cleanup_mnt+0x432/0x4e0 [ 18.106631][ T343] task_work_run+0x176/0x1a0 [ 18.111197][ T343] do_exit+0xbe2/0x26b0 [ 18.115329][ T343] ? mm_update_next_owner+0x600/0x600 [ 18.120670][ T343] ? __up_read+0x6f/0x1b0 [ 18.125099][ T343] ? __down_read+0x210/0x210 [ 18.129681][ T343] ? vmacache_update+0x9f/0xf0 [ 18.135120][ T343] do_group_exit+0x155/0x2b0 [ 18.139869][ T343] __do_sys_exit_group+0x13/0x20 [ 18.144802][ T343] __se_sys_exit_group+0x10/0x10 [ 18.149718][ T343] __x64_sys_exit_group+0x37/0x40 [ 18.154716][ T343] do_syscall_64+0xcb/0x150 [ 18.159206][ T343] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.165102][ T343] RIP: 0033:0x443918 [ 18.168983][ T343] Code: Bad RIP value. [ 18.173019][ T343] RSP: 002b:00007ffe70ac1d38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 18.181399][ T343] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000443918 [ 18.190663][ T343] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 18.198605][ T343] RBP: 00000000004c3e30 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 18.206565][ T343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 18.214516][ T343] R13: 00000000006d6180 R14: 0000000000000000 R15: 0000000000000000 [ 18.222476][ T343] Modules linked in: [ 18.226339][ T343] CR2: fffffbfff000013c [ 18.230469][ T343] ---[ end trace 50a5ce1148988de8 ]--- [ 18.235898][ T343] RIP: 0010:check_memory_region+0x70/0x2f0 [ 18.241674][ T343] Code: 49 bd 01 00 00 00 00 fc ff df 4d 01 ea 4d 89 d6 4d 29 ce 49 83 fe 10 7f 2b 4d 85 f6 0f 84 b9 01 00 00 4c 89 cb 4c 29 d3 66 90 <45> 0f b6 19 45 84 db 0f 85 03 02 00 00 49 ff c1 48 ff c3 75 eb e9 [ 18.261262][ T343] RSP: 0018:ffff8881ce3df7d0 EFLAGS: 00010297 [ 18.267311][ T343] RAX: 1ead3abe3636ab01 RBX: ffffffffffffffff RCX: ffffffff818f09d4 [ 18.275267][ T343] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff800009e4 [ 18.283207][ T343] RBP: ffffffff80000980 R08: dffffc0000000000 R09: fffffbfff000013c [ 18.291150][ T343] R10: fffffbfff000013d R11: 0000000000000004 R12: 1ffffffff000013c [ 18.299191][ T343] R13: dffffc0000000001 R14: 0000000000000001 R15: ffffffff800009e4 [ 18.307144][ T343] FS: 0000000000d4b880(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 [ 18.316644][ T343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.324098][ T343] CR2: 00000000004438ee CR3: 0000000004c0e003 CR4: 00000000001606f0 [ 18.333332][ T343] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.341726][ T343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.350102][ T343] Kernel panic - not syncing: Fatal exception [ 18.357302][ T343] Kernel Offset: disabled [ 18.362466][ T343] Rebooting in 86400 seconds..