------------[ cut here ]------------ kernel BUG at fs/f2fs/data.c:356! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 160 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: events_unbound nsim_dev_trap_report_work RIP: 0010:f2fs_write_end_io+0xb52/0xb60 fs/f2fs/data.c:355 Code: e8 63 ec 15 fe e9 91 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c e3 f6 ff ff 48 89 df e8 d9 ec 15 fe e9 d6 f6 ff ff e8 6f 3a b4 fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003a3f5b8 EFLAGS: 00010246 RAX: ffffffff840ac2c1 RBX: 0000000000000000 RCX: ffff888020b98000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: ffff888027040640 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffff94000120691 R12: 0000000000000006 R13: ffffea0000903480 R14: 000000000000000b R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888126bc6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff5aa5d56c0 CR3: 00000000366fc000 CR4: 00000000003526f0 Call Trace: blk_update_request+0x57e/0xe60 block/blk-mq.c:998 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1160 blk_complete_reqs block/blk-mq.c:1235 [inline] blk_done_softirq+0x10a/0x160 block/blk-mq.c:1240 handle_softirqs+0x22f/0x710 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] __local_bh_enable_ip+0x1a0/0x2e0 kernel/softirq.c:302 local_bh_enable include/linux/bottom_half.h:33 [inline] spin_unlock_bh include/linux/spinlock_rt.h:111 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:835 [inline] nsim_dev_trap_report_work+0x7f2/0xbc0 drivers/net/netdevsim/dev.c:866 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 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+0xb52/0xb60 fs/f2fs/data.c:355 Code: e8 63 ec 15 fe e9 91 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c e3 f6 ff ff 48 89 df e8 d9 ec 15 fe e9 d6 f6 ff ff e8 6f 3a b4 fd 90 <0f> 0b 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003a3f5b8 EFLAGS: 00010246 RAX: ffffffff840ac2c1 RBX: 0000000000000000 RCX: ffff888020b98000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100 RBP: ffff888027040640 R08: 0000000000000000 R09: 0000000000000100 R10: dffffc0000000000 R11: fffff94000120691 R12: 0000000000000006 R13: ffffea0000903480 R14: 000000000000000b R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888126bc6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff5aa5d56c0 CR3: 00000000366fc000 CR4: 00000000003526f0