CVE-2024-43888: mm: list_lru: fix UAF for memory cgroup
First published: Mon Aug 26 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: mm: list_lru: fix UAF for memory cgroup The mem_cgroup_from_slab_obj() is supposed to be called under rcu lock or cgroup_mutex or others which could prevent returned memcg from being freed. Fix it by adding missing rcu read lock. Found by code inspection. [songmuchun: only grab rcu lock when necessary, per Vlastimil] Link: <a href="https://lkml.kernel.org/r/20240801024603.1865-1-songmuchun@bytedance.com">https://lkml.kernel.org/r/20240801024603.1865-1-songmuchun@bytedance.com</a>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | >=6.8<6.10.5 | |
| Linux kernel | =6.11-rc1 | |
| Linux kernel | =6.11-rc2 | |
| Linux Kernel | >=6.8<6.10.5 | |
| Linux Kernel | =6.11-rc1 | |
| Linux Kernel | =6.11-rc2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.21-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/4589f77c18dd98b65f45617b6d1e95313cf6fcab
- https://git.kernel.org/stable/c/5161b48712dcd08ec427c450399d4d1483e21dea
- https://lkml.kernel.org/r/20240801024603.1865-1-songmuchun@bytedance.com
- https://lore.kernel.org/linux-cve-announce/2024082659-CVE-2024-43888-5beb@gregkh/T
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2307861
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43888
- https://nvd.nist.gov/vuln/detail/CVE-2024-43888
- https://launchpad.net/bugs/cve/CVE-2024-43888
- https://security-tracker.debian.org/tracker/CVE-2024-43888
- https://ubuntu.com/security/CVE-2024-43888
- https://git.kernel.org/linus/5161b48712dcd08ec427c450399d4d1483e21dea
Frequently Asked Questions
What is the severity of CVE-2024-43888?
CVE-2024-43888 has been classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2024-43888?
To fix CVE-2024-43888, update your Linux kernel to versions 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, or 6.12.11-1.
Which versions of the Linux kernel are affected by CVE-2024-43888?
CVE-2024-43888 affects Linux kernel versions from 6.8 up to 6.10.5 and specific release candidates 6.11-rc1 and 6.11-rc2.
What type of vulnerability is CVE-2024-43888?
CVE-2024-43888 is a use-after-free (UAF) vulnerability related to the memory control group management in the Linux kernel.
Is CVE-2024-43888 exploitable remotely?
CVE-2024-43888 is not categorized as a remote code execution vulnerability, but it could potentially be exploited locally if conditions allow.
- agent/title
- agent/type
- agent/first-publish-date
- agent/remedy
- agent/weakness
- agent/severity
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2024-43888
- agent/author
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/event
- agent/source
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-api
- agent/tags
- agent/softwarecombine
- collector/security-tracker-debian
- source/Debian
- vendor/linux
- canonical/linux kernel
- version/linux kernel/6.8
- version/linux kernel/6.11-rc1
- version/linux kernel/6.11-rc2
- package-manager/debian