Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.633438] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 32.652800] audit: type=1804 audit(1667773482.586:2): pid=8066 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor309" name="/root/file0/bus" dev="loop0" ino=19 res=1 [ 32.653686] EXT4-fs error (device loop0): ext4_validate_block_bitmap:392: comm syz-executor309: bg 0: block 5: invalid block bitmap [ 32.687885] audit: type=1800 audit(1667773482.586:3): pid=8066 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor309" name="bus" dev="loop0" ino=19 res=0 [ 32.696823] EXT4-fs (loop0): Delayed block allocation failed for inode 19 at logical offset 0 with max blocks 1 with error 117 [ 32.718914] EXT4-fs (loop0): This should not happen!! Data will be lost [ 32.718914] [ 32.727557] ------------[ cut here ]------------ [ 32.732389] kernel BUG at fs/ext4/inline.c:222! [ 32.737111] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 32.742469] CPU: 1 PID: 8066 Comm: syz-executor309 Not tainted 4.19.211-syzkaller #0 [ 32.750323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 32.759749] RIP: 0010:ext4_write_inline_data+0x337/0x3d0 [ 32.765209] Code: 5f e9 5d d8 84 ff e8 58 d8 84 ff 45 8d 64 2c c4 41 bd 3c 00 00 00 41 29 ed e9 df fe ff ff e8 40 d8 84 ff 0f 0b e8 39 d8 84 ff <0f> 0b e8 02 b4 ba ff e9 f5 fd ff ff 4c 89 ff e8 f5 b3 ba ff e9 99 [ 32.784175] RSP: 0018:ffff88808af07858 EFLAGS: 00010293 [ 32.789525] RAX: ffff8880b4d96580 RBX: ffff88808cfea830 RCX: ffffffff81ddab4e [ 32.796779] RDX: 0000000000000000 RSI: ffffffff81ddad37 RDI: 0000000000000006 [ 32.804033] RBP: 0000000000020026 R08: 0000000000000026 R09: 000000000002004c [ 32.811283] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000026 [ 32.818532] R13: 000000000002004c R14: ffff88808af078e0 R15: ffff88808cfeacee [ 32.825795] FS: 00005555555a3300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 32.833996] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.839864] CR2: 000055f086bdd8e0 CR3: 00000000ab514000 CR4: 00000000003406e0 [ 32.847115] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.854361] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.861613] Call Trace: [ 32.864186] ext4_write_inline_data_end+0x228/0x650 [ 32.869272] ? ext4_try_to_write_inline_data+0x1a20/0x1a20 [ 32.874892] ext4_write_end+0x1de/0xec0 [ 32.878855] ext4_da_write_end+0x860/0xa70 [ 32.883168] generic_perform_write+0x2ae/0x4d0 [ 32.887738] ? __mnt_drop_write_file+0x6f/0xa0 [ 32.892306] ? filemap_page_mkwrite+0x2f0/0x2f0 [ 32.897043] ? current_time+0x1c0/0x1c0 [ 32.901000] ? lock_acquire+0x170/0x3c0 [ 32.904954] __generic_file_write_iter+0x24b/0x610 [ 32.909866] ext4_file_write_iter+0x2fe/0xf20 [ 32.914345] ? ext4_file_open+0x600/0x600 [ 32.918473] ? mark_held_locks+0xf0/0xf0 [ 32.922512] ? __fdget_pos+0x26f/0x310 [ 32.926377] __vfs_write+0x51b/0x770 [ 32.930078] ? kernel_read+0x110/0x110 [ 32.933950] ? check_preemption_disabled+0x41/0x280 [ 32.938948] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 32.943942] vfs_write+0x1f3/0x540 [ 32.947464] ksys_write+0x12b/0x2a0 [ 32.951069] ? __ia32_sys_read+0xb0/0xb0 [ 32.955107] ? trace_hardirqs_off_caller+0x6e/0x210 [ 32.960106] ? do_syscall_64+0x21/0x620 [ 32.964061] do_syscall_64+0xf9/0x620 [ 32.967842] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 32.973009] RIP: 0033:0x7fa7ccab1a49 [ 32.976702] 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 c0 ff ff ff f7 d8 64 89 01 48 [ 32.995578] RSP: 002b:00007fff01988878 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 33.003259] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa7ccab1a49 [ 33.010504] RDX: 0000000000000026 RSI: 0000000020000580 RDI: 0000000000000003 [ 33.017750] RBP: 00007fa7cca712b0 R08: 0000000000000000 R09: 0000000000000000 [ 33.024993] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa7cca71340 [ 33.032247] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.039497] Modules linked in: [ 33.042834] ---[ end trace 1636485426080751 ]--- [ 33.047618] RIP: 0010:ext4_write_inline_data+0x337/0x3d0 [ 33.053063] Code: 5f e9 5d d8 84 ff e8 58 d8 84 ff 45 8d 64 2c c4 41 bd 3c 00 00 00 41 29 ed e9 df fe ff ff e8 40 d8 84 ff 0f 0b e8 39 d8 84 ff <0f> 0b e8 02 b4 ba ff e9 f5 fd ff ff 4c 89 ff e8 f5 b3 ba ff e9 99 [ 33.071990] RSP: 0018:ffff88808af07858 EFLAGS: 00010293 [ 33.077374] RAX: ffff8880b4d96580 RBX: ffff88808cfea830 RCX: ffffffff81ddab4e [ 33.084629] RDX: 0000000000000000 RSI: ffffffff81ddad37 RDI: 0000000000000006 [ 33.091911] RBP: 0000000000020026 R08: 0000000000000026 R09: 000000000002004c [ 33.099200] R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000026 [ 33.106483] R13: 000000000002004c R14: ffff88808af078e0 R15: ffff88808cfeacee [ 33.113745] FS: 00005555555a3300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 33.122159] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.128061] CR2: 000055f086bdd8e0 CR3: 00000000ab514000 CR4: 00000000003406e0 [ 33.135602] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.142862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.150148] Kernel panic - not syncing: Fatal exception [ 33.155575] Kernel Offset: disabled [ 33.159184] Rebooting in 86400 seconds..