EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. ------------[ cut here ]------------ kernel BUG at fs/ext4/ext4_jbd2.c:53! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 2 UID: 0 PID: 5934 Comm: syz-executor.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline] RIP: 0010:__ext4_journal_stop+0x1d7/0x210 fs/ext4/ext4_jbd2.c:125 Code: 85 ed 41 0f 45 dd e8 c8 68 3b ff 89 d8 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc e8 44 d9 ab ff e9 8d fe ff ff e8 aa 68 3b ff 90 <0f> 0b 4c 89 f7 e8 5f d9 ab ff e9 c3 fe ff ff e8 55 d9 ab ff e9 de RSP: 0018:ffffc90003f87900 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82cdf4c7 RDX: ffff8880281c2540 RSI: ffffffff82cdf676 RDI: ffff8880281c2540 RBP: ffffffff8bcd95e0 R08: 0000000000000007 R09: 0000000000000fff R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000035c R13: 0000000000000009 R14: 0000000000000012 R15: 0000000000000004 FS: 00007fa3593ff6c0(0000) GS:ffff8880d651a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa3586af7d0 CR3: 0000000026529000 CR4: 0000000000352ef0 Call Trace: ext4_write_inline_data_end+0x562/0xdb0 fs/ext4/inline.c:860 ext4_da_write_end+0x51e/0xe70 fs/ext4/inode.c:3305 generic_perform_write+0x513/0xa40 mm/filemap.c:4384 ext4_buffered_write_iter+0xdc/0x3b0 fs/ext4/file.c:316 ext4_file_write_iter+0xa2f/0x1cb0 fs/ext4/file.c:735 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa35866e3b9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 d0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa3593ff078 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fa3587abf80 RCX: 00007fa35866e3b9 RDX: 0000000000000009 RSI: 0000000020000f80 RDI: 0000000000000004 RBP: 00007fa3586cf498 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa3587abf80 R15: 00007fff263f3d58 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline] RIP: 0010:__ext4_journal_stop+0x1d7/0x210 fs/ext4/ext4_jbd2.c:125 Code: 85 ed 41 0f 45 dd e8 c8 68 3b ff 89 d8 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc e8 44 d9 ab ff e9 8d fe ff ff e8 aa 68 3b ff 90 <0f> 0b 4c 89 f7 e8 5f d9 ab ff e9 c3 fe ff ff e8 55 d9 ab ff e9 de RSP: 0018:ffffc90003f87900 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82cdf4c7 RDX: ffff8880281c2540 RSI: ffffffff82cdf676 RDI: ffff8880281c2540 RBP: ffffffff8bcd95e0 R08: 0000000000000007 R09: 0000000000000fff R10: 0000000000000000 R11: 0000000000000001 R12: 000000000000035c R13: 0000000000000009 R14: 0000000000000012 R15: 0000000000000004 FS: 00007fa3593ff6c0(0000) GS:ffff8880d651a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560d90d8e168 CR3: 0000000026529000 CR4: 0000000000352ef0