Hello, syzbot found the following issue on: HEAD commit: 9e4bc4bcae01 Merge tag 'nfs-for-6.9-2' of git://git.linux-.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10937af8980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3714fc09f933e505 dashboard link: https://syzkaller.appspot.com/bug?extid=848062ba19c8782ca5c8 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b98a742ff5ed/disk-9e4bc4bc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/207a8191df7c/vmlinux-9e4bc4bc.xz kernel image: https://storage.googleapis.com/syzbot-assets/7dd86c3ad0ba/bzImage-9e4bc4bc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+848062ba19c8782ca5c8@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ kernel BUG at fs/f2fs/inline.c:258! invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 34 Comm: kworker/u8:2 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: writeback wb_workfn (flush-7:2) RIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258 Code: ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c e3 fc ff ff 48 89 df e8 6f a5 0b fe e9 d6 fc ff ff e8 25 33 91 07 e8 f0 05 a7 fd 90 <0f> 0b e8 e8 05 a7 fd 90 0f 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 RSP: 0018:ffffc90000aa68e0 EFLAGS: 00010293 RAX: ffffffff83ef09c0 RBX: 0000000000000001 RCX: ffff888017ebbc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000aa6a10 R08: ffffffff83ef0485 R09: 1ffff1100c270ef5 R10: dffffc0000000000 R11: ffffed100c270ef6 R12: ffffc90000aa6968 R13: 1ffff1100c270ef5 R14: ffffc90000aa6960 R15: ffffc90000aa6970 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5425ff000 CR3: 000000000e134000 CR4: 0000000000350ef0 Call Trace: <TASK> f2fs_write_single_data_page+0xb65/0x1d60 fs/f2fs/data.c:2834 f2fs_write_cache_pages fs/f2fs/data.c:3133 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3288 [inline] f2fs_write_data_pages+0x1efe/0x3a90 fs/f2fs/data.c:3315 do_writepages+0x35b/0x870 mm/page-writeback.c:2612 __writeback_single_inode+0x165/0x10b0 fs/fs-writeback.c:1650 writeback_sb_inodes+0x905/0x1260 fs/fs-writeback.c:1941 wb_writeback+0x457/0xce0 fs/fs-writeback.c:2117 wb_do_writeback fs/fs-writeback.c:2264 [inline] wb_workfn+0x410/0x1090 fs/fs-writeback.c:2304 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:f2fs_write_inline_data+0x781/0x790 fs/f2fs/inline.c:258 Code: ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c e3 fc ff ff 48 89 df e8 6f a5 0b fe e9 d6 fc ff ff e8 25 33 91 07 e8 f0 05 a7 fd 90 <0f> 0b e8 e8 05 a7 fd 90 0f 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 RSP: 0018:ffffc90000aa68e0 EFLAGS: 00010293 RAX: ffffffff83ef09c0 RBX: 0000000000000001 RCX: ffff888017ebbc00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000aa6a10 R08: ffffffff83ef0485 R09: 1ffff1100c270ef5 R10: dffffc0000000000 R11: ffffed100c270ef6 R12: ffffc90000aa6968 R13: 1ffff1100c270ef5 R14: ffffc90000aa6960 R15: ffffc90000aa6970 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e628000 CR3: 0000000049462000 CR4: 0000000000350ef0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
