[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty5. [ OK ] Started OpenBSD Secure Shell server. Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts. [* ] A start job is running for dev-ttyS0.device (8s / 1min 30s)[** ] 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)[ *] A start job is running for dev-ttyS0.device (11s / 1min 30s)[ **] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ ***] A start job is running for dev-ttyS0.device (12s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (13s / 1min 30s)[ *** ] A start job is running for dev-ttyS0.device (13s / 1min 30s)[*** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[** ] A start job is running for dev-ttyS0.device (14s / 1min 30s)[* ] A start job is running for dev-ttyS0.device (15s / 1min 30s)[ 22.351485][ T22] audit: type=1400 audit(1607537403.811:8): avc: denied { execmem } for pid=353 comm="syz-executor899" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 22.378537][ T354] EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended [ 22.387916][ T354] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 22.398541][ T354] ------------[ cut here ]------------ [ 22.404328][ T354] generic_make_request: Trying to write to read-only block-device loop0 (partno 0) [*[ 22.414211][ T354] WARNING: CPU: 0 PID: 354 at block/blk-core.c:809 generic_make_request_checks+0xc8e/0xf50 [ 22.425361][ T354] Kernel panic - not syncing: panic_on_warn set ... [ 22.431922][ T354] CPU: 0 PID: 354 Comm: syz-executor899 Not tainted 5.4.82-syzkaller-00042-gd7ec680881a1 #0 [ 22.441978][ T354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.452005][ T354] Call Trace: [ 22.455266][ T354] dump_stack+0x1dd/0x24e [ 22.459566][ T354] ? devkmsg_release+0x11c/0x11c [ 22.464475][ T354] ? check_preemption_disabled+0x9e/0x330 [ 22.470162][ T354] ? show_regs_print_info+0x12/0x12 [ 22.475349][ T354] ? check_preemption_disabled+0x9e/0x330 [ 22.481035][ T354] ? debug_smp_processor_id+0x20/0x20 [ 22.486373][ T354] ? console_trylock+0x166/0x1c0 [ 22.491292][ T354] ? generic_make_request_checks+0xc80/0xf50 [ 22.497238][ T354] ? generic_make_request_checks+0xc80/0xf50 [ 22.503184][ T354] panic+0x285/0x750 [ 22.507047][ T354] ? __check_object_size+0x2e5/0x3b0 [ 22.512313][ T354] ? __warn+0xfa/0x200 [ 22.516349][ T354] ? nmi_panic+0x90/0x90 [ 22.520573][ T354] ? generic_make_request_checks+0xc8e/0xf50 [ 22.526563][ T354] ? is_valid_bugaddr+0xa0/0x150 [ 22.531475][ T354] ? ist_end_non_atomic+0x10/0x10 [ 22.536481][ T354] ? generic_make_request_checks+0xc8e/0xf50 [ 22.542434][ T354] __warn+0x1fd/0x200 [ 22.546388][ T354] ? generic_make_request_checks+0xc8e/0xf50 [ 22.552375][ T354] report_bug+0x390/0x4d0 [ 22.556679][ T354] ? generic_make_request_checks+0xc8e/0xf50 [ 22.564148][ T354] do_invalid_op+0x6e/0x110 [ 22.568630][ T354] invalid_op+0x1e/0x30 [ 22.572757][ T354] RIP: 0010:generic_make_request_checks+0xc8e/0xf50 [ 22.579315][ T354] Code: e8 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 ad 02 00 00 8b 13 48 c7 c7 aa 4b fe 84 4c 89 fe 31 c0 e8 d2 72 24 ff <0f> 0b 4c 8b 7c 24 10 e9 39 f7 ff ff 48 8b 0c 24 80 e1 07 80 c1 03 [ 22.598920][ T354] RSP: 0018:ffff8881e891f620 EFLAGS: 00010246 [ 22.604990][ T354] RAX: de92e508037a1100 RBX: ffff8881f3eb43fc RCX: ffff8881e8e13e00 [ 22.612930][ T354] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 22.620871][ T354] RBP: ffff8881e891f770 R08: ffffffff814c5b21 R09: ffffed103ee05e08 [ 22.628814][ T354] R10: ffffed103ee05e08 R11: 0000000000000000 R12: 1ffff1103dd39e51 [ 22.636763][ T354] R13: ffff8881f3ec6d48 R14: ffff8881ee9cf288 R15: ffff8881e891f6a0 [ 22.644710][ T354] ? vprintk_emit+0x3b1/0x500 [ 22.649369][ T354] ? generic_make_request+0xde0/0xde0 [ 22.654721][ T354] ? mempool_alloc_slab+0x25/0x30 [ 22.659721][ T354] ? mempool_alloc+0x120/0x680 [ 22.664453][ T354] generic_make_request+0xbe/0xde0 [ 22.669536][ T354] ? memset+0x1f/0x40 [ 22.673488][ T354] ? blk_attempt_plug_merge+0x310/0x310 [ 22.679002][ T354] ? fscrypt_set_bio_crypt_ctx+0x179/0x4e0 [ 22.684774][ T354] submit_bio+0x145/0x560 [ 22.689075][ T354] ? bio_add_page+0x2ea/0x470 [ 22.693721][ T354] ? direct_make_request+0x430/0x430 [ 22.698972][ T354] ? submit_bh_wbc+0x631/0x790 [ 22.703723][ T354] __sync_dirty_buffer+0x1d2/0x2d0 [ 22.708812][ T354] ext4_commit_super+0x857/0xa30 [ 22.713723][ T354] ext4_put_super+0x31e/0xc10 [ 22.718371][ T354] ? ext4_drop_inode+0x1e0/0x1e0 [ 22.723281][ T354] generic_shutdown_super+0x11b/0x2a0 [ 22.728623][ T354] kill_block_super+0x79/0xd0 [ 22.733269][ T354] deactivate_locked_super+0xaf/0x100 [ 22.738610][ T354] deactivate_super+0x1b8/0x280 [ 22.743429][ T354] ? deactivate_locked_super+0x100/0x100 [ 22.749031][ T354] ? dput+0x4ed/0x5e0 [ 22.752983][ T354] ? _raw_spin_lock_irq+0xa4/0x1b0 [ 22.758065][ T354] ? find_next_bit+0xd8/0x120 [ 22.762708][ T354] cleanup_mnt+0x432/0x4e0 [ 22.767092][ T354] task_work_run+0x176/0x1a0 [ 22.771650][ T354] do_exit+0xcc2/0x2830 [ 22.775773][ T354] ? mm_update_next_owner+0x5d0/0x5d0 [ 22.781112][ T354] ? __up_read+0x6f/0x1b0 [ 22.785407][ T354] ? check_preemption_disabled+0x15a/0x330 [ 22.791181][ T354] ? debug_smp_processor_id+0x20/0x20 [ 22.796520][ T354] do_group_exit+0x155/0x2b0 [ 22.801078][ T354] __do_sys_exit_group+0x13/0x20 [ 22.805981][ T354] __se_sys_exit_group+0x10/0x10 [ 22.810884][ T354] __x64_sys_exit_group+0x37/0x40 [ 22.815875][ T354] do_syscall_64+0xcb/0x150 [ 22.820346][ T354] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.826205][ T354] RIP: 0033:0x4437f8 [ 22.830074][ T354] Code: Bad RIP value. [ 22.834114][ T354] RSP: 002b:00007fff41425e88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 22.842490][ T354] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004437f8 [ 22.850431][ T354] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 22.858371][ T354] RBP: 00000000004c3b90 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 22.866322][ T354] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000001 [ 22.874263][ T354] R13: 00000000006d6180 R14: 0000000000000000 R15: 0000000000000000 [ 22.882757][ T354] Kernel Offset: disabled [ 22.887058][ T354] Rebooting in 86400 seconds..