syzbot has found a reproducer for the following issue on: HEAD commit: 834a4a689699 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10051a3f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=a972ee73c2fcf8ca dashboard link: https://syzkaller.appspot.com/bug?extid=803dd716c4310d16ff3a compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=145a2fe4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13382470580000
Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-834a4a68.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4454365a3050/vmlinux-834a4a68.xz kernel image: https://storage.googleapis.com/syzbot-assets/2d99dbd9f6f4/bzImage-834a4a68.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/89819a66cafe/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=13420b98580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+803dd716c4310d16f...@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at fs/f2fs/data.c:358! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 1033 Comm: kworker/u4:5 Not tainted 6.15.0-rc2-syzkaller-00037-g834a4a689699 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: loop0 loop_rootcg_workfn RIP: 0010:f2fs_write_end_io+0x77a/0x790 fs/f2fs/data.c:357 Code: e8 fb d8 f0 fd e9 a2 fa ff ff 89 d9 80 e1 07 38 c1 0f 8c fe fa ff ff 48 89 df e8 81 d8 f0 fd e9 f1 fa ff ff e8 d7 9e 86 fd 90 <0f> 0b e8 9f 0a f4 07 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0000:ffffc90002597320 EFLAGS: 00010093 RAX: ffffffff843cb659 RBX: 0000000000000000 RCX: ffff888035d74880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000a RBP: ffffc90002597430 R08: ffffffff843cb306 R09: 1ffffd4000219d7d R10: dffffc0000000000 R11: fffff94000219d7e R12: 0000000000000001 R13: dffffc0000000000 R14: 000000000000000a R15: ffffea00010cebc0 FS: 0000000000000000(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f3f420000 CR3: 00000000430fc000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> blk_update_request+0x5e5/0x1160 block/blk-mq.c:983 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1145 blk_flush_complete_seq+0x6bd/0xcf0 block/blk-flush.c:191 flush_end_io+0xab4/0xdc0 block/blk-flush.c:250 __blk_mq_end_request+0x492/0x5d0 block/blk-mq.c:1135 loop_handle_cmd drivers/block/loop.c:1960 [inline] loop_process_work+0x1bdf/0x21d0 drivers/block/loop.c:1978 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319 worker_thread+0x870/0xd50 kernel/workqueue.c:3400 kthread+0x7b7/0x940 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:f2fs_write_end_io+0x77a/0x790 fs/f2fs/data.c:357 Code: e8 fb d8 f0 fd e9 a2 fa ff ff 89 d9 80 e1 07 38 c1 0f 8c fe fa ff ff 48 89 df e8 81 d8 f0 fd e9 f1 fa ff ff e8 d7 9e 86 fd 90 <0f> 0b e8 9f 0a f4 07 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0000:ffffc90002597320 EFLAGS: 00010093 RAX: ffffffff843cb659 RBX: 0000000000000000 RCX: ffff888035d74880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000a RBP: ffffc90002597430 R08: ffffffff843cb306 R09: 1ffffd4000219d7d R10: dffffc0000000000 R11: fffff94000219d7e R12: 0000000000000001 R13: dffffc0000000000 R14: 000000000000000a R15: ffffea00010cebc0 FS: 0000000000000000(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f3f420000 CR3: 00000000430fc000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
