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Date:   Mon, 11 Dec 2023 03:58:26 -0800
Message-ID: <000000000000d3490c060c3aa67a@google.com>
Subject: [syzbot] [gfs2] WARNING in vfs_utimes
From:   syzbot <syzbot+0c64a8706d587f73409e@syzkaller.appspotmail.com>
To:     brauner@kernel.org, gfs2@lists.linux.dev,
        linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
        syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk
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Hello,

syzbot found the following issue on:

HEAD commit:    aed8aee11130 Merge tag 'pmdomain-v6.6-rc1' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10ec0a28680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=df91a3034fe3f122
dashboard link: https://syzkaller.appspot.com/bug?extid=0c64a8706d587f73409e
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/310bcfc234f7/disk-aed8aee1.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/9ca036d3eeb2/vmlinux-aed8aee1.xz
kernel image: https://storage.googleapis.com/syzbot-assets/1e0032b9919c/bzImage-aed8aee1.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0c64a8706d587f73409e@syzkaller.appspotmail.com

------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x1, magic = 0xffff8880371ddef0, owner = 0xffff88801d773b80, curr 0xffff888023728000, list empty
WARNING: CPU: 0 PID: 13147 at kernel/locking/rwsem.c:1370 __up_write kernel/locking/rwsem.c:1369 [inline]
WARNING: CPU: 0 PID: 13147 at kernel/locking/rwsem.c:1370 up_write+0x4f4/0x580 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 0 PID: 13147 Comm: syz-executor.1 Not tainted 6.6.0-rc1-syzkaller-00072-gaed8aee11130 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:__up_write kernel/locking/rwsem.c:1369 [inline]
RIP: 0010:up_write+0x4f4/0x580 kernel/locking/rwsem.c:1626
Code: 48 c7 c7 a0 98 0a 8b 48 c7 c6 e0 9a 0a 8b 48 8b 54 24 28 48 8b 4c 24 18 4d 89 e0 4c 8b 4c 24 30 53 e8 b0 12 e8 ff 48 83 c4 08 <0f> 0b e9 75 fd ff ff 48 c7 c1 10 9b 9a 8e 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9001520fbe0 EFLAGS: 00010292
RAX: 144e8f9151b91a00 RBX: ffffffff8b0a9980 RCX: ffff888023728000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9001520fcb0 R08: ffffffff81542432 R09: 1ffff92002a41ee8
R10: dffffc0000000000 R11: fffff52002a41ee9 R12: ffff88801d773b80
R13: ffff8880371ddef0 R14: 1ffff92002a41f84 R15: dffffc0000000000
FS:  00007fadafbfe6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f527c5b8000 CR3: 000000001c7cb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:807 [inline]
 vfs_utimes+0x4c2/0x760 fs/utimes.c:68
 do_utimes_path fs/utimes.c:99 [inline]
 do_utimes fs/utimes.c:145 [inline]
 __do_sys_utime fs/utimes.c:226 [inline]
 __se_sys_utime+0x1e1/0x2e0 fs/utimes.c:215
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fadb847cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fadafbfe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000084
RAX: ffffffffffffffda RBX: 00007fadb859c050 RCX: 00007fadb847cae9
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000020000080
RBP: 00007fadb84c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fadb859c050 R15: 00007ffca2821ba8
 </TASK>


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