Hello, syzbot found the following issue on:
HEAD commit: 43fb83c17ba2 Merge tag 'soc-arm-6.13' of git://git.kernel... git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=170f5930580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e796b1bf154f93a7 dashboard link: https://syzkaller.appspot.com/bug?extid=b01a36acd7007e273a83 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=1213fae8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12b3a75f980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c93bb9014475/disk-43fb83c1.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8116200f91e3/vmlinux-43fb83c1.xz kernel image: https://storage.googleapis.com/syzbot-assets/d3a982ec74b0/bzImage-43fb83c1.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/43c22dda0085/mount_0.gz The issue was bisected to: commit 4c8ff7095bef64fc47e996a938f7d57f9e077da3 Author: Chao Yu <yuch...@huawei.com> Date: Fri Nov 1 10:07:14 2019 +0000 f2fs: support data compression bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=101e5b78580000 final oops: https://syzkaller.appspot.com/x/report.txt?x=121e5b78580000 console output: https://syzkaller.appspot.com/x/log.txt?x=141e5b78580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b01a36acd7007e273...@syzkaller.appspotmail.com Fixes: 4c8ff7095bef ("f2fs: support data compression") F2FS-fs (loop0): Found nat_bits in checkpoint F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5835 at fs/inode.c:407 drop_nlink+0xc4/0x110 fs/inode.c:407 Modules linked in: CPU: 0 UID: 0 PID: 5835 Comm: syz-executor152 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:drop_nlink+0xc4/0x110 fs/inode.c:407 Code: bb 70 07 00 00 be 08 00 00 00 e8 07 df e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 ed e9 7e ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff RSP: 0018:ffffc90003cafb98 EFLAGS: 00010293 RAX: ffffffff82160e93 RBX: 1ffff1100e63e009 RCX: ffff888035573c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff82160e13 R09: 1ffffffff203969e R10: dffffc0000000000 R11: fffffbfff203969f R12: ffff8880731f0048 R13: dffffc0000000000 R14: ffff8880731f0000 R15: dffffc0000000000 FS: 0000555576140380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000066c7e0 CR3: 00000000758b4000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> f2fs_i_links_write fs/f2fs/f2fs.h:3127 [inline] f2fs_drop_nlink+0xd6/0x380 fs/f2fs/dir.c:822 f2fs_unlink+0x47f/0x960 fs/f2fs/namei.c:572 vfs_unlink+0x365/0x650 fs/namei.c:4523 do_unlinkat+0x4ae/0x830 fs/namei.c:4587 __do_sys_unlinkat fs/namei.c:4630 [inline] __se_sys_unlinkat fs/namei.c:4623 [inline] __x64_sys_unlinkat+0xcc/0xf0 fs/namei.c:4623 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f71e4b355f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffed28a90b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00007ffed28a9298 RCX: 00007f71e4b355f9 RDX: 0000000000000000 RSI: 0000000020000380 RDI: 00000000ffffff9c RBP: 00007f71e4bb8610 R08: 00000000000105b7 R09: 0000000000000000 R10: 00007ffed28a8f80 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffed28a9288 R14: 0000000000000001 R15: 0000000000000001 </TASK> --- 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 syzkal...@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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. 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 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
