CVE-2023-52668

See a problem?
Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52668
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52668.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52668
Related
Published
2024-05-17T14:15:09Z
Modified
2024-09-11T05:02:10.994710Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

btrfs: zoned: fix lock ordering in btrfszoneactivate()

The btrfs CI reported a lockdep warning as follows by running generic generic/129.

WARNING: possible circular locking dependency detected 6.7.0-rc5+ #1 Not tainted

kworker/u5:5/793427 is trying to acquire lock: ffff88813256d028 (&cache->lock){+.+.}-{2:2}, at: btrfszonefinishonebg+0x5e/0x130 but task is already holding lock: ffff88810a23a318 (&fsinfo->zoneactivebgslock){+.+.}-{2:2}, at: btrfszonefinishonebg+0x34/0x130 which lock already depends on the new lock.

the existing dependency chain (in reverse order) is: -> #1 (&fsinfo->zoneactivebgslock){+.+.}-{2:2}: ... -> #0 (&cache->lock){+.+.}-{2:2}: ...

This is because we take fsinfo->zoneactivebgslock after a blockgroup's lock in btrfszone_activate() while doing the opposite in other places.

Fix the issue by expanding the fsinfo->zoneactivebgslock's critical section and taking it before a block_group's lock.

References

Affected packages

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.6.15-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3
6.3.1-1~exp1
6.3.2-1~exp1
6.3.4-1~exp1
6.3.5-1~exp1
6.3.7-1~bpo12+1
6.3.7-1
6.3.11-1
6.4~rc6-1~exp1
6.4~rc7-1~exp1
6.4.1-1~exp1
6.4.4-1~bpo12+1
6.4.4-1
6.4.4-2
6.4.4-3~bpo12+1
6.4.4-3
6.4.11-1
6.4.13-1
6.5~rc4-1~exp1
6.5~rc6-1~exp1
6.5~rc7-1~exp1
6.5.1-1~exp1
6.5.3-1~bpo12+1
6.5.3-1
6.5.6-1
6.5.8-1
6.5.10-1~bpo12+1
6.5.10-1
6.5.13-1
6.6.3-1~exp1
6.6.4-1~exp1
6.6.7-1~exp1
6.6.8-1
6.6.9-1
6.6.11-1
6.6.13-1~bpo12+1
6.6.13-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}