------------[ cut here ]------------ kernel BUG at fs/f2fs/data.c:388! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:f2fs_write_end_io+0x16df/0x1740 fs/f2fs/data.c:388 Code: 20 39 9b 8b e8 f2 18 f7 fc 90 0f 0b e8 5a d5 93 fd 48 8b 3c 24 48 c7 c6 20 39 9b 8b e8 da 18 f7 fc 90 0f 0b e8 42 d5 93 fd 90 <0f> 0b e8 3a d5 93 fd 48 8b 3c 24 48 c7 c6 20 39 9b 8b e8 ba 18 f7 RSP: 0018:ffffc90000147b18 EFLAGS: 00010246 RAX: ffffffff84309bfe RBX: ffffea0000e12280 RCX: ffff88801cee1ec0 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffffbfff1f11b7f R12: 000000003848a000 R13: ffffea0000e122c0 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812617a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f05d1f41d58 CR3: 000000005ecc0000 CR4: 00000000003526f0 Call Trace: blk_update_request+0x57e/0xe60 block/blk-mq.c:1016 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1178 blk_complete_reqs block/blk-mq.c:1253 [inline] blk_done_softirq+0x10a/0x160 block/blk-mq.c:1258 handle_softirqs+0x1de/0x6d0 kernel/softirq.c:622 run_ksoftirqd+0x52/0x180 kernel/softirq.c:1076 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:f2fs_write_end_io+0x16df/0x1740 fs/f2fs/data.c:388 Code: 20 39 9b 8b e8 f2 18 f7 fc 90 0f 0b e8 5a d5 93 fd 48 8b 3c 24 48 c7 c6 20 39 9b 8b e8 da 18 f7 fc 90 0f 0b e8 42 d5 93 fd 90 <0f> 0b e8 3a d5 93 fd 48 8b 3c 24 48 c7 c6 20 39 9b 8b e8 ba 18 f7 RSP: 0018:ffffc90000147b18 EFLAGS: 00010246 RAX: ffffffff84309bfe RBX: ffffea0000e12280 RCX: ffff88801cee1ec0 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffffbfff1f11b7f R12: 000000003848a000 R13: ffffea0000e122c0 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812617a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f05d1f41d58 CR3: 000000005ecc0000 CR4: 00000000003526f0