Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.555916] IPVS: ftp: loaded support on port[0] = 21 [ 32.597623] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) executing program [ 32.976969] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) executing program [ 33.345867] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) [ 33.544959] ------------[ cut here ]------------ [ 33.550334] WARNING: CPU: 1 PID: 8128 at fs/udf/truncate.c:226 udf_truncate_extents.cold+0x11/0x18 [ 33.559431] Kernel panic - not syncing: panic_on_warn set ... [ 33.559431] [ 33.566799] CPU: 1 PID: 8128 Comm: syz-executor715 Not tainted 4.19.208-syzkaller #0 [ 33.574677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.584025] Call Trace: [ 33.586621] dump_stack+0x1fc/0x2ef [ 33.590256] panic+0x26a/0x50e [ 33.593445] ? __warn_printk+0xf3/0xf3 [ 33.597341] ? udf_truncate_extents.cold+0x11/0x18 [ 33.602271] ? __probe_kernel_read+0x130/0x1b0 [ 33.606866] ? __warn.cold+0x5/0x5a [ 33.610492] ? __warn+0xe4/0x200 [ 33.613864] ? udf_truncate_extents.cold+0x11/0x18 [ 33.618815] __warn.cold+0x20/0x5a [ 33.622353] ? io_schedule_timeout+0x140/0x140 [ 33.626934] ? udf_truncate_extents.cold+0x11/0x18 [ 33.631870] report_bug+0x262/0x2b0 [ 33.635513] do_error_trap+0x1d7/0x310 [ 33.639401] ? math_error+0x310/0x310 [ 33.643200] ? __irq_work_queue_local+0x101/0x160 [ 33.648050] ? irq_work_queue+0x29/0x80 [ 33.652034] ? error_entry+0x72/0xd0 [ 33.655748] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.660766] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.665617] invalid_op+0x14/0x20 [ 33.669073] RIP: 0010:udf_truncate_extents.cold+0x11/0x18 [ 33.674605] Code: 89 df 48 c7 c6 40 a9 9a 88 e8 ac f9 ff ff 41 bc ea ff ff ff e9 b6 6f 78 fa e8 f0 c4 69 f9 48 c7 c7 60 b4 9a 88 e8 0f db fa ff <0f> 0b e9 a1 90 78 fa e8 d8 c4 69 f9 48 c7 c6 40 ba 9a 88 48 c7 c7 [ 33.693598] RSP: 0018:ffff888094dcf948 EFLAGS: 00010286 [ 33.698945] RAX: 0000000000000024 RBX: ffff88808ac47120 RCX: 0000000000000000 [ 33.706198] RDX: 0000000000000000 RSI: ffffffff814dfe11 RDI: ffffed10129b9f1b [ 33.713455] RBP: ffff888094dcfa30 R08: 0000000000000024 R09: 0000000000000000 [ 33.720709] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888094dcf9f0 [ 33.727958] R13: 0000000000000010 R14: 00000000000000ff R15: ffff888094ffe380 [ 33.735310] ? vprintk_func+0x81/0x180 [ 33.739232] ? udf_truncate_extents.cold+0x11/0x18 [ 33.744154] ? lock_downgrade+0x720/0x720 [ 33.748294] ? udf_discard_prealloc+0x690/0x690 [ 33.752947] ? udf_write_failed.isra.0+0x173/0x1d0 [ 33.757865] ? udf_write_failed.isra.0+0xd4/0x1d0 [ 33.762693] udf_write_failed.isra.0+0x17b/0x1d0 [ 33.767437] udf_write_begin+0x89/0xa0 [ 33.771310] generic_perform_write+0x1f8/0x4d0 [ 33.775880] ? __mnt_drop_write_file+0x6f/0xa0 [ 33.780458] ? filemap_page_mkwrite+0x2f0/0x2f0 [ 33.785111] ? current_time+0x1c0/0x1c0 [ 33.789066] __generic_file_write_iter+0x24b/0x610 [ 33.793997] udf_file_write_iter+0x2d4/0x4e0 [ 33.798389] __vfs_write+0x51b/0x770 [ 33.802118] ? kernel_read+0x110/0x110 [ 33.806023] ? check_preemption_disabled+0x41/0x280 [ 33.811026] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 33.816023] vfs_write+0x1f3/0x540 [ 33.819543] ksys_write+0x12b/0x2a0 [ 33.823149] ? __ia32_sys_read+0xb0/0xb0 [ 33.827189] ? trace_hardirqs_off_caller+0x6e/0x210 [ 33.832195] ? do_syscall_64+0x21/0x620 [ 33.836153] do_syscall_64+0xf9/0x620 [ 33.839936] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.845106] RIP: 0033:0x7f508a57b5d9 [ 33.848798] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 33.867677] RSP: 002b:00007f508a5272f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 33.875363] RAX: ffffffffffffffda RBX: 00007f508a6004c0 RCX: 00007f508a57b5d9 [ 33.882609] RDX: 000000000208e24b RSI: 0000000020000040 RDI: 0000000000000004 [ 33.889867] RBP: 00007f508a5cd370 R08: 0000000000000000 R09: 0000000000000000 [ 33.897116] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e [ 33.904378] R13: 2f30656c69662f2e R14: 6465646165726874 R15: 00007f508a6004c8 [ 33.912055] Kernel Offset: disabled [ 33.915724] Rebooting in 86400 seconds..