DEBIAN-CVE-2025-22126

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Source
https://security-tracker.debian.org/tracker/CVE-2025-22126
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-22126.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-22126
Upstream
Published
2025-04-16T15:16:06Z
Modified
2025-09-19T07:34:29.187951Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: md: fix mddev uaf while iterating allmddevs list While iterating allmddevs list from mdnotifyreboot() and mdexit(), listforeachentrysafe is used, and this can race with deletint the next mddev, causing UAF: t1: spinlock //listforeachentrysafe(mddev, n, ...) mddevget(mddev1) // assume mddev2 is the next entry spinunlock t2: //remove mddev2 ... mddevfree spinlock listdel spinunlock kfree(mddev2) mddevput(mddev1) spinlock //continue dereference mddev2->allmddevs The old helper foreachmddev() actually grab the reference of mddev2 while holding the lock, to prevent from being freed. This problem can be fixed the same way, however, the code will be complex. Hence switch to use listforeachentry, in this case mddevput() can free the mddev1 and it's not safe as well. Refer to mdseqshow(), also factor out a helper mddevput_locked() to fix this problem.

References

Affected packages

Debian:12 / 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
6.1.135-1

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
6.1.112-1
6.1.115-1
6.1.119-1
6.1.123-1
6.1.124-1
6.1.128-1
6.1.129-1
6.1.133-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

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
6.12.22-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / 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
6.12.22-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / linux-6.1

Package

Name
linux-6.1
Purl
pkg:deb/debian/linux-6.1?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.137-1~deb11u1

Affected versions

6.*

6.1.106-3~deb11u1
6.1.106-3~deb11u2
6.1.106-3~deb11u3
6.1.112-1~deb11u1
6.1.119-1~deb11u1
6.1.128-1~deb11u1
6.1.129-1~deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}