CVE-2024-50272: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: filemap: Fix bounds checking in filemap_read() If the caller supplies an iocb->ki_pos value that is close to the filesystem upper limit, and an iterator with a count that causes us to overflow that limit, then filemap_read() enters an infinite loop. This behaviour was discovered when testing xfstests generic/525 with the "localio" optimisation for loopback NFS mounts.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-835 CWE-835

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.16.40 — 3.17
linux	linux_kernel	4.7.10 — 4.8
linux	linux_kernel	4.8.4 — 4.9
linux	linux_kernel	4.9 — 6.1.117
linux	linux_kernel	6.2 — 6.6.61
linux	linux_kernel	6.7 — 6.11.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/26530b757c81f1389fb33ae0357500150933161b https://git.kernel.org/stable/c/6450e73f4c86d481ac2e22e1bc848d346e140826 https://git.kernel.org/stable/c/a2746ab3bbc9c6408da5cd072653ec8c24749235 https://git.kernel.org/stable/c/ace149e0830c380ddfce7e466fe860ca502fe4ee

Other References

https://git.kernel.org/stable/c/6cc52df69e8464811f9f6fc12f7aaa78451eb0b8 https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-50272? +

In the Linux kernel, the following vulnerability has been resolved: filemap: Fix bounds checking in filemap_read() If the caller supplies an iocb->ki_pos value that is close to the filesystem upper limit, and an iterator with a count that causes us to overflow that limit, then filemap_read() enters an infinite loop. This behaviour was discovered when testing xfstests generic/525 with the "localio" optimisation for loopback NFS mounts. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50272? +

CVE-2024-50272 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-50272? +

CVE-2024-50272 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-50272? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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