Warning: Permanently added '10.128.0.125' (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 (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 (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)[ 22.622849][ T22] audit: type=1400 audit(1608571441.903:8): avc: denied { execmem } for pid=366 comm="syz-executor067" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 22.646058][ T366] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 22.660610][ T366] ------------[ cut here ]------------ [ 22.666099][ T366] kernel BUG at fs/ext4/inode.c:2795! [ 22.671656][ T366] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 22.677939][ T366] CPU: 0 PID: 366 Comm: syz-executor067 Not tainted 5.4.85-syzkaller-00187-g4aa7a7c97391 #0 [ 22.688247][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.698476][ T366] RIP: 0010:ext4_writepages+0x3f1c/0x3f30 [ 22.704181][ T366] Code: a0 ff 0f 0b e8 d5 cf a0 ff 0f 0b e8 ce cf a0 ff 0f 0b e8 97 82 78 ff e8 c2 cf a0 ff 0f 0b e8 bb cf a0 ff 0f 0b e8 b4 cf a0 ff <0f> 0b e8 ad cf a0 ff 0f 0b 90 66 2e 0f 1f 84 00 00 00 00 00 53 48 [ 22.723897][ T366] RSP: 0018:ffff8881e8437460 EFLAGS: 00010293 [ 22.729959][ T366] RAX: ffffffff81c3ef4c RBX: 0000010000000000 RCX: ffff8881e844dd00 [ 22.738025][ T366] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 [ 22.746004][ T366] RBP: ffff8881e8437830 R08: ffffffff81c3ba9f R09: ffffed103bea580b [ 22.753961][ T366] R10: ffffed103bea580b R11: 0000000000000000 R12: ffff8881df52c100 [ 22.761980][ T366] R13: ffff8881e84379a0 R14: 0000018410000000 R15: dffffc0000000000 [ 22.769969][ T366] FS: 0000000001b8e880(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.778896][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.785472][ T366] CR2: 000055800c177210 CR3: 00000001ded45000 CR4: 00000000001406f0 [ 22.793445][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.801412][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.809391][ T366] Call Trace: [ 22.812678][ T366] ? mark_buffer_dirty+0x334/0x380 [ 22.817805][ T366] ? __ext4_handle_dirty_metadata+0x2d8/0x910 [ 22.823876][ T366] ? ext4_get_group_desc+0x253/0x2a0 [ 22.829171][ T366] ? __ext4_journal_get_create_access+0x2e0/0x2e0 [ 22.835581][ T366] ? __ext4_get_inode_loc+0x4ad/0x1080 [ 22.841031][ T366] ? ext4_mark_inode_dirty+0x5e3/0x780 [ 22.846491][ T366] ? ext4_mark_iloc_dirty+0x248f/0x3430 [ 22.852021][ T366] ? ext4_readpage+0x2b0/0x2b0 [ 22.856784][ T366] ? ext4_chunk_trans_blocks+0x280/0x280 [ 22.862413][ T366] ? __ext4_expand_extra_isize+0x3b0/0x3b0 [ 22.868223][ T366] ? ext4_reserve_inode_write+0x19c/0x220 [ 22.873941][ T366] ? ext4_evict_inode+0x1a70/0x1a70 [ 22.879144][ T366] ? up_write+0x187/0x280 [ 22.883455][ T366] ? up_read+0x10/0x10 [ 22.887510][ T366] ? ext4_readpage+0x2b0/0x2b0 [ 22.892274][ T366] do_writepages+0x13a/0x280 [ 22.896877][ T366] ? debug_smp_processor_id+0x20/0x20 [ 22.902247][ T366] ? __writepage+0x110/0x110 [ 22.906835][ T366] ? balance_dirty_pages_ratelimited+0x363/0x520 [ 22.913186][ T366] file_write_and_wait_range+0x36c/0x470 [ 22.918822][ T366] ? __filemap_set_wb_err+0x160/0x160 [ 22.924207][ T366] ? grab_cache_page_write_begin+0x90/0x90 [ 22.930050][ T366] __generic_file_fsync+0x6e/0x190 [ 22.935165][ T366] ext4_sync_file+0x4b7/0xc80 [ 22.939843][ T366] ext4_file_write_iter+0x988/0x1070 [ 22.945132][ T366] ? ext4_file_read_iter+0x140/0x140 [ 22.950405][ T366] ? iov_iter_init+0x83/0x160 [ 22.955066][ T366] __vfs_write+0x59c/0x720 [ 22.959485][ T366] ? __kernel_write+0x340/0x340 [ 22.964322][ T366] ? check_preemption_disabled+0x9e/0x330 [ 22.970063][ T366] ? debug_smp_processor_id+0x20/0x20 [ 22.975420][ T366] vfs_write+0x217/0x4f0 [ 22.979658][ T366] ksys_write+0x186/0x2b0 [ 22.983994][ T366] ? debug_smp_processor_id+0x20/0x20 [ 22.989368][ T366] ? __ia32_sys_read+0x80/0x80 [ 22.994127][ T366] do_syscall_64+0xcb/0x150 [ 22.998633][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.004522][ T366] RIP: 0033:0x444639 [ 23.008409][ T366] Code: 8d d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 5b d7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 23.028110][ T366] RSP: 002b:00007ffe07d113b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 23.036525][ T366] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444639 [ 23.044502][ T366] RDX: 0000000000000082 RSI: 0000000020000180 RDI: 0000000000000004 [ 23.052653][ T366] RBP: 00000000006d0018 R08: 00000000004002e0 R09: 00000000004002e0 [ 23.060626][ T366] R10: 00000000004002e0 R11: 0000000000000246 R12: 0000000000402220 [ 23.068602][ T366] R13: 00000000004022b0 R14: 0000000000000000 R15: 0000000000000000 [ 23.076590][ T366] Modules linked in: [ 23.082211][ T366] ---[ end trace c2cdc7646cf89230 ]--- [ 23.087724][ T366] RIP: 0010:ext4_writepages+0x3f1c/0x3f30 [ 23.093446][ T366] Code: a0 ff 0f 0b e8 d5 cf a0 ff 0f 0b e8 ce cf a0 ff 0f 0b e8 97 82 78 ff e8 c2 cf a0 ff 0f 0b e8 bb cf a0 ff 0f 0b e8 b4 cf a0 ff <0f> 0b e8 ad cf a0 ff 0f 0b 90 66 2e 0f 1f 84 00 00 00 00 00 53 48 [ 23.113127][ T366] RSP: 0018:ffff8881e8437460 EFLAGS: 00010293 [ 23.119259][ T366] RAX: ffffffff81c3ef4c RBX: 0000010000000000 RCX: ffff8881e844dd00 [ 23.119273][ T366] RDX: 0000000000000000 RSI: 0000010000000000 RDI: 0000000000000000 [ 23.135283][ T366] RBP: ffff8881e8437830 R08: ffffffff81c3ba9f R09: ffffed103bea580b [ 23.143337][ T366] R10: ffffed103bea580b R11: 0000000000000000 R12: ffff8881df52c100 [ 23.151462][ T366] R13: ffff8881e84379a0 R14: 0000018410000000 R15: dffffc0000000000 [*[0;1;3[ 23.159893][ T366] FS: 0000000001b8e880(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 1m** [ 23.170337][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ] [ 23.178955][ T366] CR2: 000055800c177210 CR3: 00000001ded45000 CR4: 00000000001406f0 [ 23.187663][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.195657][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 A start job is r[ 23.203841][ T366] Kernel panic - not syncing: Fatal exception [ 23.211673][ T366] Kernel Offset: disabled [ 23.216005][ T366] Rebooting in 86400 seconds..