CVE-2024-26772: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal()
First published: Wed Apr 03 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal() Places the logic for checking if the group's block bitmap is corrupt under the protection of the group lock to avoid allocating blocks from the group with a corrupted block bitmap.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <4.19.308 | 4.19.308 |
| redhat/kernel | <5.4.270 | 5.4.270 |
| redhat/kernel | <5.10.211 | 5.10.211 |
| redhat/kernel | <5.15.150 | 5.15.150 |
| redhat/kernel | <6.1.80 | 6.1.80 |
| redhat/kernel | <6.6.19 | 6.6.19 |
| redhat/kernel | <6.7.7 | 6.7.7 |
| redhat/kernel | <6.8 | 6.8 |
| Linux Kernel | <4.19.308 | |
| Linux Kernel | >=4.20<5.4.270 | |
| Linux Kernel | >=5.5<5.10.211 | |
| Linux Kernel | >=5.11<5.15.150 | |
| Linux Kernel | >=5.16<6.1.80 | |
| Linux Kernel | >=6.2<6.6.19 | |
| Linux Kernel | >=6.7<6.7.7 | |
| Linux Kernel | =6.8-rc1 | |
| Linux Kernel | =6.8-rc2 | |
| Debian Linux | =10.0 | |
| IBM Security Verify Governance - Identity Manager | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Software Stack | <=ISVG 10.0.2 | |
| IBM Security Verify Governance, Identity Manager Virtual Appliance | <=ISVG 10.0.2 | |
| IBM Security Verify Governance Identity Manager Container | <=ISVG 10.0.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/21dbe20589c7f48e9c5d336ce6402bcebfa6d76a
- https://git.kernel.org/stable/c/5a6dcc4ad0f7f7fa8e8d127b5526e7c5f2d38a43
- https://git.kernel.org/stable/c/6b92b1bc16d691c95b152c6dbf027ad64315668d
- https://git.kernel.org/stable/c/832698373a25950942c04a512daa652c18a9b513
- https://git.kernel.org/stable/c/8de8305a25bfda607fc13475ebe84b978c96d7ff
- https://git.kernel.org/stable/c/d3bbe77a76bc52e9d4d0a120f1509be36e25c916
- https://git.kernel.org/stable/c/d639102f4cbd4cb65d1225dba3b9265596aab586
- https://git.kernel.org/stable/c/ffeb72a80a82aba59a6774b0611f792e0ed3b0b7
- https://launchpad.net/bugs/cve/CVE-2024-26772
- https://access.redhat.com/security/cve/CVE-2024-26772
- https://lore.kernel.org/linux-cve-announce/2024040308-CVE-2024-26772-5168@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2273243
- https://access.redhat.com/errata/RHSA-2024:5102
- https://access.redhat.com/errata/RHSA-2024:5101
- https://access.redhat.com/errata/RHSA-2024:6753
- https://access.redhat.com/errata/RHSA-2024:6993
- https://access.redhat.com/errata/RHSA-2024:9315
- https://access.redhat.com/errata/RHSA-2024:9498
- https://access.redhat.com/errata/RHSA-2024:9497
- https://access.redhat.com/errata/RHSA-2024:9546
- https://bugzilla.redhat.com/show_bug.cgi?id=2273242
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26772
- https://nvd.nist.gov/vuln/detail/CVE-2024-26772
- https://security-tracker.debian.org/tracker/CVE-2024-26772
- https://ubuntu.com/security/CVE-2024-26772
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://git.kernel.org/linus/832698373a25950942c04a512daa652c18a9b513
- https://www.ibm.com/support/pages/node/7230443 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-26772?
CVE-2024-26772 has a moderate severity level due to potential issues in block allocation from corrupted groups in ext4.
How do I fix CVE-2024-26772?
To mitigate CVE-2024-26772, users should update their Linux kernel to the latest versions: 4.19.308, 5.4.270, 5.10.211, 5.15.150, 6.1.80, or later versions.
Which Linux kernel versions are affected by CVE-2024-26772?
CVE-2024-26772 affects several Linux kernel versions prior to 4.19.308, 5.4.270, 5.10.211, 5.15.150, 6.1.80 and includes versions like 6.6.19, 6.7.7, and 6.8.
Is CVE-2024-26772 a critical vulnerability?
CVE-2024-26772 is not considered critical, but it poses risks that should be addressed through updates.
Who is affected by CVE-2024-26772?
Users running vulnerable versions of the Linux kernel are at risk from CVE-2024-26772 and should apply updates promptly.
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