From: syzbot <syzbot+1c134362d18de07842ca@syzkaller.appspotmail.com>
To: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com,
linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: [syzbot] [btrfs?] kernel BUG in __reserve_bytes
Date: Fri, 01 Dec 2023 05:47:28 -0800 [thread overview]
Message-ID: <00000000000051a218060b7302be@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: e8f60209d6cf Merge tag 'pmdomain-v6.7-rc2' of git://git.ke..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10b3499ae80000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb39fe85d254f638
dashboard link: https://syzkaller.appspot.com/bug?extid=1c134362d18de07842ca
compiler: gcc (Debian 12.2.0-14) 12.2.0, 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/2af2eefe2f60/disk-e8f60209.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/15130e50c05d/vmlinux-e8f60209.xz
kernel image: https://storage.googleapis.com/syzbot-assets/6e0a0602189b/bzImage-e8f60209.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+1c134362d18de07842ca@syzkaller.appspotmail.com
------------[ cut here ]------------
kernel BUG at fs/btrfs/space-info.c:1638!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 15269 Comm: syz-executor.2 Not tainted 6.7.0-rc3-syzkaller-00048-ge8f60209d6cf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:__reserve_bytes+0xd8e/0x12e0 fs/btrfs/space-info.c:1638
Code: e9 b3 f5 ff ff e8 d2 db ed fd b9 66 06 00 00 48 c7 c2 e0 2c 19 8b 48 c7 c6 a0 32 19 8b 48 c7 c7 80 2d 19 8b e8 b3 b7 d0 fd 90 <0f> 0b e8 ab db ed fd e8 b6 39 dd fd 48 89 44 24 18 e9 62 f7 ff ff
RSP: 0018:ffffc90017956bd0 EFLAGS: 00010282
RAX: 000000000000003b RBX: ffff88807a22c000 RCX: ffffc9000b468000
RDX: 0000000000000000 RSI: ffffffff816b0182 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 000000000019c548 R12: 0000000000000000
R13: ffff88805bc04000 R14: 1ffff92002f2ad81 R15: dffffc0000000000
FS: 00007fa7588a16c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000078fa2000 CR4: 0000000000350ef0
Call Trace:
<TASK>
btrfs_reserve_metadata_bytes+0x2a/0x110 fs/btrfs/space-info.c:1783
btrfs_reserve_trans_metadata fs/btrfs/transaction.c:598 [inline]
start_transaction+0x1837/0x1c90 fs/btrfs/transaction.c:692
btrfs_dirty_inode+0x189/0x200 fs/btrfs/inode.c:6015
btrfs_update_time fs/btrfs/inode.c:6041 [inline]
btrfs_update_time+0xae/0xe0 fs/btrfs/inode.c:6032
inode_update_time fs/inode.c:1955 [inline]
touch_atime+0x34f/0x5d0 fs/inode.c:2028
file_accessed include/linux/fs.h:2360 [inline]
filemap_read+0xb09/0xcf0 mm/filemap.c:2661
btrfs_file_read_iter+0x1dc/0x830 fs/btrfs/file.c:3823
__kernel_read+0x301/0x870 fs/read_write.c:428
integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:221
ima_calc_file_hash_tfm+0x2c5/0x3d0 security/integrity/ima/ima_crypto.c:485
ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
ima_calc_file_hash+0x1c6/0x4a0 security/integrity/ima/ima_crypto.c:573
ima_collect_measurement+0x85e/0xa20 security/integrity/ima/ima_api.c:290
process_measurement+0xe92/0x2260 security/integrity/ima/ima_main.c:359
ima_file_check+0xc2/0x110 security/integrity/ima/ima_main.c:557
do_open fs/namei.c:3624 [inline]
path_openat+0x1821/0x2c50 fs/namei.c:3779
do_filp_open+0x1de/0x430 fs/namei.c:3809
do_sys_openat2+0x176/0x1e0 fs/open.c:1440
do_sys_open fs/open.c:1455 [inline]
__do_sys_open fs/open.c:1463 [inline]
__se_sys_open fs/open.c:1459 [inline]
__x64_sys_open+0x154/0x1e0 fs/open.c:1459
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa757a7cae9
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:00007fa7588a10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fa757b9c050 RCX: 00007fa757a7cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000240
RBP: 00007fa757ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fa757b9c050 R15: 00007ffd9a11eb28
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__reserve_bytes+0xd8e/0x12e0 fs/btrfs/space-info.c:1638
Code: e9 b3 f5 ff ff e8 d2 db ed fd b9 66 06 00 00 48 c7 c2 e0 2c 19 8b 48 c7 c6 a0 32 19 8b 48 c7 c7 80 2d 19 8b e8 b3 b7 d0 fd 90 <0f> 0b e8 ab db ed fd e8 b6 39 dd fd 48 89 44 24 18 e9 62 f7 ff ff
RSP: 0018:ffffc90017956bd0 EFLAGS: 00010282
RAX: 000000000000003b RBX: ffff88807a22c000 RCX: ffffc9000b468000
RDX: 0000000000000000 RSI: ffffffff816b0182 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 000000000019c548 R12: 0000000000000000
R13: ffff88805bc04000 R14: 1ffff92002f2ad81 R15: dffffc0000000000
FS: 00007fa7588a16c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3245f000 CR3: 0000000078fa2000 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@googlegroups.com.
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
reply other threads:[~2023-12-01 13:47 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=00000000000051a218060b7302be@google.com \
--to=syzbot+1c134362d18de07842ca@syzkaller.appspotmail.com \
--cc=clm@fb.com \
--cc=dsterba@suse.com \
--cc=josef@toxicpanda.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.