------------[ cut here ]------------ kernel BUG at fs/ext4/ext4_jbd2.c:53! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6473 Comm: syz.0.118 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 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 f8 59 3c ff 89 d8 5b 5d 41 5c 41 5d 41 5e e9 f4 3c 43 fe e8 34 db ab ff e9 8d fe ff ff e8 da 59 3c ff 90 <0f> 0b 4c 89 f7 e8 4f db ab ff e9 c3 fe ff ff e8 45 db ab ff e9 de RSP: 0018:ffffc9000447f900 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82cd0277 RDX: ffff8880263c8000 RSI: ffffffff82cd0426 RDI: ffff8880263c8000 RBP: ffffffff8bcd99a0 R08: 0000000000000007 R09: 0000000000000fff R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000035c R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f2d7e8a96c0(0000) GS:ffff8881242ef000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f28bd945000 CR3: 00000000745aa000 CR4: 0000000000350ef0 Call Trace: ext4_write_inline_data_end+0x8d8/0xdb0 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: 0033:0x7f2d7d99ce59 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:00007f2d7e8a9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2d7dc15fa0 RCX: 00007f2d7d99ce59 RDX: 0000000000000078 RSI: 0000200000000600 RDI: 0000000000000005 RBP: 00007f2d7da32e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f2d7dc16038 R14: 00007f2d7dc15fa0 R15: 00007ffcad457748 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 f8 59 3c ff 89 d8 5b 5d 41 5c 41 5d 41 5e e9 f4 3c 43 fe e8 34 db ab ff e9 8d fe ff ff e8 da 59 3c ff 90 <0f> 0b 4c 89 f7 e8 4f db ab ff e9 c3 fe ff ff e8 45 db ab ff e9 de RSP: 0018:ffffc9000447f900 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff82cd0277 RDX: ffff8880263c8000 RSI: ffffffff82cd0426 RDI: ffff8880263c8000 RBP: ffffffff8bcd99a0 R08: 0000000000000007 R09: 0000000000000fff R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000035c R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f2d7e8a96c0(0000) GS:ffff8881243ef000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc368fcdd0 CR3: 00000000745aa000 CR4: 0000000000350ef0