Warning: Permanently added '10.128.0.131' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.817576][ T8417] loop0: detected capacity change from 0 to 512 [ 55.831601][ T8417] EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended [ 55.845304][ T8417] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none. [ 55.901146][ T8417] ------------[ cut here ]------------ [ 55.907465][ T8417] Trying to write to read-only block-device loop0 (partno 0) [ 55.927835][ T8417] WARNING: CPU: 1 PID: 8417 at block/blk-core.c:704 submit_bio_checks+0x165c/0x1aa0 [ 55.937780][ T8417] Modules linked in: [ 55.941842][ T8417] CPU: 1 PID: 8417 Comm: syz-executor921 Not tainted 5.13.0-rc2-syzkaller #0 [ 55.951444][ T8417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.962690][ T8417] RIP: 0010:submit_bio_checks+0x165c/0x1aa0 [ 55.969598][ T8417] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 76 42 fe ff 48 c7 c7 60 da c0 89 48 89 c6 44 89 e2 e8 e7 cf 1b 05 <0f> 0b e9 36 f3 ff ff e8 78 d3 bb fd 0f 0b e9 bf f1 ff ff e8 6c d3 [ 55.990067][ T8417] RSP: 0018:ffffc90000eff8b0 EFLAGS: 00010286 [ 55.996215][ T8417] RAX: 0000000000000000 RBX: ffff88801e250de0 RCX: 0000000000000000 [ 56.004263][ T8417] RDX: ffff888029173880 RSI: ffffffff815cda35 RDI: fffff520001dff08 [ 56.012255][ T8417] RBP: ffff888021b0f280 R08: 0000000000000000 R09: 0000000000000000 [ 56.020296][ T8417] R10: ffffffff815c789e R11: 0000000000000000 R12: 0000000000000000 [ 56.028383][ T8417] R13: ffff888021b0f290 R14: ffff88801a948b80 R15: ffff88801e2512e4 [ 56.036408][ T8417] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 56.045391][ T8417] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.051967][ T8417] CR2: 000055bdc1c07160 CR3: 000000000bc8e000 CR4: 0000000000350ef0 [ 56.059971][ T8417] Call Trace: [ 56.063296][ T8417] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 56.070235][ T8417] ? __lock_acquire+0xb3a/0x5230 [ 56.075202][ T8417] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 56.081186][ T8417] submit_bio_noacct+0x81/0xf20 [ 56.086147][ T8417] ? blk_queue_enter+0xb50/0xb50 [ 56.091085][ T8417] ? bio_associate_blkg_from_css+0x563/0xf60 [ 56.097659][ T8417] ? lock_downgrade+0x6e0/0x6e0 [ 56.102518][ T8417] submit_bio+0x263/0x5e0 [ 56.106892][ T8417] ? submit_bio_noacct+0xf20/0xf20 [ 56.111998][ T8417] ? bio_add_page+0x186/0x1f0 [ 56.116711][ T8417] ? __bio_try_merge_page+0x350/0x350 [ 56.122084][ T8417] submit_bh_wbc+0x5eb/0x7f0 [ 56.126711][ T8417] __sync_dirty_buffer+0x16d/0x3f0 [ 56.131823][ T8417] ext4_commit_super+0x2b0/0x520 [ 56.136803][ T8417] ext4_put_super+0xcac/0x10c0 [ 56.141566][ T8417] ? ext4_quota_write+0x680/0x680 [ 56.146624][ T8417] generic_shutdown_super+0x14c/0x370 [ 56.151996][ T8417] kill_block_super+0x97/0xf0 [ 56.156705][ T8417] deactivate_locked_super+0x94/0x160 [ 56.162078][ T8417] deactivate_super+0xad/0xd0 [ 56.166804][ T8417] cleanup_mnt+0x3a2/0x540 [ 56.171220][ T8417] task_work_run+0xdd/0x1a0 [ 56.175759][ T8417] do_exit+0xbfc/0x2a60 [ 56.179920][ T8417] ? mm_update_next_owner+0x7a0/0x7a0 [ 56.185323][ T8417] ? lock_downgrade+0x6e0/0x6e0 [ 56.190175][ T8417] ? lock_downgrade+0x6e0/0x6e0 [ 56.195069][ T8417] do_group_exit+0x125/0x310 [ 56.199658][ T8417] __x64_sys_exit_group+0x3a/0x50 [ 56.204902][ T8417] do_syscall_64+0x3a/0xb0 [ 56.209519][ T8417] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.215464][ T8417] RIP: 0033:0x442f09 [ 56.219353][ T8417] Code: Unable to access opcode bytes at RIP 0x442edf. [ 56.226250][ T8417] RSP: 002b:00007ffe2d781028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.234734][ T8417] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442f09 [ 56.242791][ T8417] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.250788][ T8417] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 56.258838][ T8417] R10: 000000000000001f R11: 0000000000000246 R12: 00000000004b42f0 [ 56.266855][ T8417] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 56.274886][ T8417] Kernel panic - not syncing: panic_on_warn set ... [ 56.281456][ T8417] CPU: 0 PID: 8417 Comm: syz-executor921 Not tainted 5.13.0-rc2-syzkaller #0 [ 56.290192][ T8417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.300226][ T8417] Call Trace: [ 56.303484][ T8417] dump_stack+0x141/0x1d7 [ 56.307798][ T8417] panic+0x306/0x73d [ 56.311671][ T8417] ? __warn_printk+0xf3/0xf3 [ 56.316244][ T8417] ? __warn.cold+0x1a/0x44 [ 56.320638][ T8417] ? submit_bio_checks+0x165c/0x1aa0 [ 56.325916][ T8417] __warn.cold+0x35/0x44 [ 56.330137][ T8417] ? submit_bio_checks+0x165c/0x1aa0 [ 56.335589][ T8417] report_bug+0x1bd/0x210 [ 56.339905][ T8417] handle_bug+0x3c/0x60 [ 56.344045][ T8417] exc_invalid_op+0x14/0x40 [ 56.348531][ T8417] asm_exc_invalid_op+0x12/0x20 [ 56.353362][ T8417] RIP: 0010:submit_bio_checks+0x165c/0x1aa0 [ 56.359234][ T8417] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 76 42 fe ff 48 c7 c7 60 da c0 89 48 89 c6 44 89 e2 e8 e7 cf 1b 05 <0f> 0b e9 36 f3 ff ff e8 78 d3 bb fd 0f 0b e9 bf f1 ff ff e8 6c d3 [ 56.378820][ T8417] RSP: 0018:ffffc90000eff8b0 EFLAGS: 00010286 [ 56.384868][ T8417] RAX: 0000000000000000 RBX: ffff88801e250de0 RCX: 0000000000000000 [ 56.392819][ T8417] RDX: ffff888029173880 RSI: ffffffff815cda35 RDI: fffff520001dff08 [ 56.400769][ T8417] RBP: ffff888021b0f280 R08: 0000000000000000 R09: 0000000000000000 [ 56.408724][ T8417] R10: ffffffff815c789e R11: 0000000000000000 R12: 0000000000000000 [ 56.416683][ T8417] R13: ffff888021b0f290 R14: ffff88801a948b80 R15: ffff88801e2512e4 [ 56.424664][ T8417] ? wake_up_klogd.part.0+0x8e/0xd0 [ 56.429870][ T8417] ? vprintk+0x95/0x260 [ 56.434011][ T8417] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 56.440934][ T8417] ? __lock_acquire+0xb3a/0x5230 [ 56.445860][ T8417] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 56.451825][ T8417] submit_bio_noacct+0x81/0xf20 [ 56.456674][ T8417] ? blk_queue_enter+0xb50/0xb50 [ 56.461606][ T8417] ? bio_associate_blkg_from_css+0x563/0xf60 [ 56.467565][ T8417] ? lock_downgrade+0x6e0/0x6e0 [ 56.472399][ T8417] submit_bio+0x263/0x5e0 [ 56.476705][ T8417] ? submit_bio_noacct+0xf20/0xf20 [ 56.481795][ T8417] ? bio_add_page+0x186/0x1f0 [ 56.486448][ T8417] ? __bio_try_merge_page+0x350/0x350 [ 56.491802][ T8417] submit_bh_wbc+0x5eb/0x7f0 [ 56.496373][ T8417] __sync_dirty_buffer+0x16d/0x3f0 [ 56.501462][ T8417] ext4_commit_super+0x2b0/0x520 [ 56.506378][ T8417] ext4_put_super+0xcac/0x10c0 [ 56.511121][ T8417] ? ext4_quota_write+0x680/0x680 [ 56.516121][ T8417] generic_shutdown_super+0x14c/0x370 [ 56.521473][ T8417] kill_block_super+0x97/0xf0 [ 56.526147][ T8417] deactivate_locked_super+0x94/0x160 [ 56.531500][ T8417] deactivate_super+0xad/0xd0 [ 56.536157][ T8417] cleanup_mnt+0x3a2/0x540 [ 56.540557][ T8417] task_work_run+0xdd/0x1a0 [ 56.545040][ T8417] do_exit+0xbfc/0x2a60 [ 56.549179][ T8417] ? mm_update_next_owner+0x7a0/0x7a0 [ 56.554525][ T8417] ? lock_downgrade+0x6e0/0x6e0 [ 56.559354][ T8417] ? lock_downgrade+0x6e0/0x6e0 [ 56.564190][ T8417] do_group_exit+0x125/0x310 [ 56.568758][ T8417] __x64_sys_exit_group+0x3a/0x50 [ 56.573763][ T8417] do_syscall_64+0x3a/0xb0 [ 56.578164][ T8417] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 56.584049][ T8417] RIP: 0033:0x442f09 [ 56.587919][ T8417] Code: Unable to access opcode bytes at RIP 0x442edf. [ 56.594733][ T8417] RSP: 002b:00007ffe2d781028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.603124][ T8417] RAX: ffffffffffffffda RBX: 00000000004b42f0 RCX: 0000000000442f09 [ 56.611097][ T8417] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.619043][ T8417] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00000000004af000 [ 56.626993][ T8417] R10: 000000000000001f R11: 0000000000000246 R12: 00000000004b42f0 [ 56.634946][ T8417] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 56.647028][ T8417] Kernel Offset: disabled [ 56.651409][ T8417] Rebooting in 86400 seconds..