CVE-2024-50272

filemap: Fix bounds checking in filemap_read()

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

19 Nov 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/26530b757c81f1389fb33ae0357500150933161b https://git.kernel.org/stable/c/6450e73f4c86d481ac2e22e1bc848d346e140826 https://git.kernel.org/stable/c/6cc52df69e8464811f9f6fc12f7aaa78451eb0b8 https://git.kernel.org/stable/c/a2746ab3bbc9c6408da5cd072653ec8c24749235 https://git.kernel.org/stable/c/ace149e0830c380ddfce7e466fe860ca502fe4ee https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html