Messages in this thread |  | | Date | Sat, 17 Dec 2022 01:01:42 -0800 | Subject | [syzbot] [udf?] WARNING in udf_setsize | From | syzbot <> |
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Hello,
syzbot found the following issue on:
HEAD commit: 764822972d64 Merge tag 'nfsd-6.2' of git://git.kernel.org/.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=11536087880000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c59170b68d26a55 dashboard link: https://syzkaller.appspot.com/bug?extid=0937935b993956ba28ab compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11c41f07880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=137b3913880000
Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0c840c19749d/disk-76482297.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/bdfd51618ae0/vmlinux-76482297.xz kernel image: https://storage.googleapis.com/syzbot-assets/fef17b5d4d6d/bzImage-76482297.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/f0caf90549db/mount_0.gz
The issue was bisected to:
commit 16d0556568148bdcaa45d077cac9f8f7077cf70a Author: Jan Kara <jack@suse.cz> Date: Wed Dec 7 17:17:34 2022 +0000
udf: Discard preallocation before extending file with a hole
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1790d4e7880000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1450d4e7880000 console output: https://syzkaller.appspot.com/x/log.txt?x=1050d4e7880000
IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0937935b993956ba28ab@syzkaller.appspotmail.com Fixes: 16d055656814 ("udf: Discard preallocation before extending file with a hole")
------------[ cut here ]------------ WARNING: CPU: 1 PID: 3631 at fs/udf/inode.c:639 udf_setsize+0xf9e/0x1380 fs/udf/inode.c:1236 Modules linked in: CPU: 1 PID: 3631 Comm: syz-executor194 Not tainted 6.1.0-syzkaller-03225-g764822972d64 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:udf_extend_file fs/udf/inode.c:638 [inline] RIP: 0010:udf_setsize+0xf9e/0x1380 fs/udf/inode.c:1236 Code: 8e fe 45 85 f6 49 bf 00 00 00 00 00 fc ff df 74 0a e8 86 28 8e fe e9 34 ff ff ff e8 7c 28 8e fe e9 fa fd ff ff e8 72 28 8e fe <0f> 0b e9 61 f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c 1a f1 ff ff 48 89 RSP: 0018:ffffc90003cefb00 EFLAGS: 00010293 RAX: ffffffff82fd3d5e RBX: 0000000000000800 RCX: ffff888022760000 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000000800 RBP: ffffc90003cefcd8 R08: ffffffff82fd33b8 R09: ffffed100df29024 R10: ffffed100df29024 R11: 1ffff1100df29023 R12: 1ffff9200079df70 R13: ffffc90003cefc10 R14: 0000000000001000 R15: 0000000000000009 FS: 00005555566c83c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560387521d28 CR3: 0000000073ea7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> udf_setattr+0x362/0x530 fs/udf/file.c:281 notify_change+0xe50/0x1100 fs/attr.c:482 do_truncate+0x200/0x2f0 fs/open.c:65 do_sys_ftruncate+0x2bc/0x360 fs/open.c:193 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fd454550da9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb8edd258 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007ffeb8edd268 RCX: 00007fd454550da9 RDX: ffffffffffffffc0 RSI: 00000000000007fb RDI: 0000000000000004 RBP: 00007ffeb8edd260 R08: 00007fd45450e360 R09: 00007fd45450e360 R10: 00007ffeb8edd260 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </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 syzkaller@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 syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
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