CVE-2024-26736: afs: Increase buffer size in afs_update_volume_status()

Description

In the Linux kernel, the following vulnerability has been resolved:

afs: Increase buffer size in afs_update_volume_status()

The max length of volume->vid value is 20 characters.
So increase idbuf[] size up to 24 to avoid overflow.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[DH: Actually, it's 20 + NUL, so increase it to 24 and use snprintf()]

Classification

CVE ID: CVE-2024-26736

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 12.41% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/5c27d85a69fa16a08813ba37ddfb4bbc9a1ed6b5
https://git.kernel.org/stable/c/d9b5e2b7a8196850383c70d099bfd39e81ab6637
https://git.kernel.org/stable/c/e56662160fc24d28cb75ac095cc6415ae1bda43e
https://git.kernel.org/stable/c/e8530b170e464017203e3b8c6c49af6e916aece1
https://git.kernel.org/stable/c/6e6065dd25b661420fac19c34282b6c626fcd35e
https://git.kernel.org/stable/c/d34a5e57632bb5ff825196ddd9a48ca403626dfa
https://git.kernel.org/stable/c/6ea38e2aeb72349cad50e38899b0ba6fbcb2af3d

Timeline