Warning: Permanently added '10.128.1.4' (ECDSA) to the list of known hosts. [ 35.403247] IPVS: ftp: loaded support on port[0] = 21 executing program [ 35.493520] ------------[ cut here ]------------ [ 35.498315] generic_make_request: Trying to write to read-only block-device loop0 (partno 0) [ 35.507545] WARNING: CPU: 1 PID: 8149 at block/blk-core.c:2183 generic_make_request_checks+0x17d9/0x22e0 [ 35.517170] Kernel panic - not syncing: panic_on_warn set ... [ 35.517170] [ 35.524544] CPU: 1 PID: 8149 Comm: syz-executor018 Not tainted 4.19.201-syzkaller #0 [ 35.532423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.541772] Call Trace: [ 35.544347] dump_stack+0x1fc/0x2ef [ 35.547970] panic+0x26a/0x50e [ 35.551143] ? __warn_printk+0xf3/0xf3 [ 35.555018] ? generic_make_request_checks+0x17d9/0x22e0 [ 35.560468] ? __probe_kernel_read+0x130/0x1b0 [ 35.565047] ? __warn.cold+0x5/0x5a [ 35.568665] ? __warn+0xe4/0x200 [ 35.572023] ? generic_make_request_checks+0x17d9/0x22e0 [ 35.577462] __warn.cold+0x20/0x5a [ 35.580984] ? generic_make_request_checks+0x17d9/0x22e0 [ 35.586414] report_bug+0x262/0x2b0 [ 35.590038] do_error_trap+0x1d7/0x310 [ 35.593909] ? math_error+0x310/0x310 [ 35.597691] ? __irq_work_queue_local+0x101/0x160 [ 35.602516] ? irq_work_queue+0x29/0x80 [ 35.606490] ? error_entry+0x72/0xd0 [ 35.610197] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.615195] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.620032] invalid_op+0x14/0x20 [ 35.623480] RIP: 0010:generic_make_request_checks+0x17d9/0x22e0 [ 35.629534] Code: ca 0a 00 00 45 8b b6 e4 04 00 00 48 8d 74 24 68 48 89 ef e8 b9 14 06 00 48 c7 c7 40 26 b2 88 48 89 c6 44 89 f2 e8 37 56 91 04 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 [ 35.648416] RSP: 0018:ffff88809a3070b0 EFLAGS: 00010286 [ 35.653786] RAX: 0000000000000000 RBX: ffff8880aee8a040 RCX: 0000000000000000 [ 35.661037] RDX: 0000000000000000 RSI: ffffffff814dfd61 RDI: ffffed1013460e08 [ 35.668295] RBP: ffff8880ab92f8c0 R08: 0000000000000001 R09: 0000000000000000 [ 35.675614] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880ab92f8f0 [ 35.682882] R13: ffff8880ab92f8c8 R14: 0000000000000000 R15: 0000000000000000 [ 35.690147] ? vprintk_func+0x81/0x180 [ 35.694027] ? should_fail_bio.isra.0+0xa0/0xa0 [ 35.698679] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.703698] ? kmem_cache_alloc+0x315/0x370 [ 35.708017] generic_make_request+0x23f/0xdf0 [ 35.712510] ? blk_put_request+0x110/0x110 [ 35.716743] ? sb_mark_inode_writeback+0xc8/0x490 [ 35.721581] submit_bio+0xb1/0x430 [ 35.725117] ? generic_make_request+0xdf0/0xdf0 [ 35.729769] ? check_preemption_disabled+0x41/0x280 [ 35.734783] ? guard_bio_eod+0x2a0/0x650 [ 35.738831] submit_bh_wbc+0x5a7/0x760 [ 35.742700] __block_write_full_page+0x71a/0xf60 [ 35.747457] ? block_llseek+0xc0/0xc0 [ 35.751251] block_write_full_page+0x1f3/0x260 [ 35.755810] ? block_llseek+0xc0/0xc0 [ 35.759593] __writepage+0x5e/0xe0 [ 35.763116] write_cache_pages+0x802/0x12d0 [ 35.767522] ? tag_pages_for_writeback+0x2f0/0x2f0 [ 35.772449] ? clear_page_dirty_for_io+0xee0/0xee0 [ 35.777362] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 35.782463] ? try_to_wake_up+0x733/0x1050 [ 35.786750] ? __lock_acquire+0x6de/0x3ff0 [ 35.790969] ? blkdev_readpages+0x30/0x30 [ 35.795098] generic_writepages+0xdb/0x150 [ 35.799328] ? dirty_poll_interval.part.0+0x30/0x30 [ 35.804325] ? mark_held_locks+0xf0/0xf0 [ 35.808390] do_writepages+0xe5/0x290 [ 35.812187] ? page_writeback_cpu_online+0x10/0x10 [ 35.817102] ? do_raw_spin_unlock+0x171/0x230 [ 35.821581] ? _raw_spin_unlock+0x29/0x40 [ 35.825727] ? wbc_attach_and_unlock_inode+0x11d/0x9e0 [ 35.830985] __filemap_fdatawrite_range+0x27d/0x350 [ 35.835987] ? delete_from_page_cache_batch+0xcc0/0xcc0 [ 35.841349] ? lock_downgrade+0x720/0x720 [ 35.845477] ? locks_remove_file+0x2c8/0x450 [ 35.849881] ? blkdev_put+0x30/0x520 [ 35.853577] ? blkdev_put+0x520/0x520 [ 35.857357] filemap_write_and_wait+0x42/0xd0 [ 35.861840] __blkdev_put+0x682/0x870 [ 35.865627] ? fsync_bdev+0xc0/0xc0 [ 35.869249] ? blkdev_put+0x85/0x520 [ 35.872946] ? blkdev_put+0x520/0x520 [ 35.876727] blkdev_close+0x86/0xb0 [ 35.880341] __fput+0x2ce/0x890 [ 35.883610] task_work_run+0x148/0x1c0 [ 35.887494] do_exit+0xbf3/0x2be0 [ 35.890943] ? futex_wake+0x159/0x480 [ 35.894725] ? mm_update_next_owner+0x650/0x650 [ 35.899375] ? get_signal+0x388/0x1f70 [ 35.903245] ? lock_downgrade+0x720/0x720 [ 35.907379] ? lock_acquire+0x170/0x3c0 [ 35.911351] do_group_exit+0x125/0x310 [ 35.915237] get_signal+0x3f2/0x1f70 [ 35.918935] ? mark_held_locks+0xf0/0xf0 [ 35.922998] do_signal+0x8f/0x1670 [ 35.926523] ? lock_downgrade+0x720/0x720 [ 35.930654] ? check_preemption_disabled+0x41/0x280 [ 35.935762] ? check_preemption_disabled+0x41/0x280 [ 35.940783] ? setup_sigcontext+0x820/0x820 [ 35.945091] ? __fget+0x356/0x510 [ 35.948529] ? do_dup2+0x450/0x450 [ 35.952080] ? __se_sys_futex+0x28f/0x3b0 [ 35.956240] ? __se_sys_futex+0x298/0x3b0 [ 35.960398] ? do_futex+0x1880/0x1880 [ 35.964184] ? exit_to_usermode_loop+0x36/0x2a0 [ 35.968838] exit_to_usermode_loop+0x204/0x2a0 [ 35.973412] do_syscall_64+0x538/0x620 [ 35.977285] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.982470] RIP: 0033:0x44a779 [ 35.985658] Code: Bad RIP value. [ 35.989014] RSP: 002b:00007f8e4ad2c218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 35.996698] RAX: 0000000000000001 RBX: 00000000004cb438 RCX: 000000000044a779 [ 36.003947] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000004cb43c [ 36.011209] RBP: 00000000004cb430 R08: 0000000000000000 R09: 0000000000000000 [ 36.018471] R10: 0000000000000005 R11: 0000000000000246 R12: 00000000004cb43c [ 36.025729] R13: 00007ffe166c1a7f R14: 00007f8e4ad2c300 R15: 0000000000022000 [ 36.034410] Kernel Offset: disabled [ 36.038089] Rebooting in 86400 seconds..