------------[ cut here ]------------ kernel BUG at fs/ext4/ext4_jbd2.c:53! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 14722 Comm: syz.9.1386 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline] RIP: 0010:__ext4_journal_stop+0x190/0x1a0 fs/ext4/ext4_jbd2.c:125 Code: e8 75 9c 4e ff e9 f8 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 10 ff ff ff e8 8b a7 b5 ff e9 06 ff ff ff e8 51 9c 4e ff 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffffc900056b7820 EFLAGS: 00010283 RAX: ffffffff8275da7f RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90014331000 RSI: 00000000000003bb RDI: 00000000000003bc RBP: ffffc900056b7968 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f11d9f R12: 1ffff11007fc1da9 R13: 000000000000035c R14: ffffffff8d701b27 R15: 0000000000000038 FS: 00007f799b43d6c0(0000) GS:ffff888126176000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd9fb32048 CR3: 000000003c460000 CR4: 00000000003526f0 Call Trace: ext4_write_inline_data_end+0x7bd/0xaf0 fs/ext4/inline.c:860 generic_perform_write+0x5f7/0x8b0 mm/filemap.c:4346 ext4_buffered_write_iter+0xd0/0x3a0 fs/ext4/file.c:316 ext4_file_write_iter+0x299/0x1c10 fs/ext4/file.c:-1 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x629/0xba0 fs/read_write.c:688 ksys_write+0x156/0x270 fs/read_write.c:740 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f799d20cdd9 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f799b43d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f799d486090 RCX: 00007f799d20cdd9 RDX: 0000000000000018 RSI: 0000200000000600 RDI: 0000000000000005 RBP: 00007f799d2a2d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f799d486128 R14: 00007f799d486090 R15: 00007fff5a6eefd8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_put_nojournal fs/ext4/ext4_jbd2.c:53 [inline] RIP: 0010:__ext4_journal_stop+0x190/0x1a0 fs/ext4/ext4_jbd2.c:125 Code: e8 75 9c 4e ff e9 f8 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 10 ff ff ff e8 8b a7 b5 ff e9 06 ff ff ff e8 51 9c 4e ff 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 RSP: 0018:ffffc900056b7820 EFLAGS: 00010283 RAX: ffffffff8275da7f RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90014331000 RSI: 00000000000003bb RDI: 00000000000003bc RBP: ffffc900056b7968 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f11d9f R12: 1ffff11007fc1da9 R13: 000000000000035c R14: ffffffff8d701b27 R15: 0000000000000038 FS: 00007f799b43d6c0(0000) GS:ffff888126176000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd9fb32048 CR3: 000000003c460000 CR4: 00000000003526f0