CVE-2024-0443: Kernel: blkio memory leakage due to blkcg and some blkgs are not freed after they are made offline.
First published: Thu Jan 11 2024(Updated: )
A cgroup blkio memory leakage problem was found in blkgs destruction path in block/blk-cgroup.c in the Linux kernel. In this flaw, an attacker with a local access may cause a system instability, such as out of memory. Refer: <a href="https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/">https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=6.2<6.4 | |
| Linux Linux kernel | =6.4-rc1 | |
| Linux Linux kernel | =6.4-rc2 | |
| Linux Linux kernel | =6.4-rc3 | |
| Linux Linux kernel | =6.4-rc4 | |
| Linux Linux kernel | =6.4-rc5 | |
| Linux Linux kernel | =6.4-rc6 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| Fedoraproject Fedora | =39 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2023:7077
- https://access.redhat.com/security/cve/CVE-2024-0443
- https://bugzilla.redhat.com/show_bug.cgi?id=2257968
- https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/279832
- https://www.ibm.com/support/pages/node/7144861 (Advisory)
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2257970
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/errata/RHSA-2023:7370
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