CVE-2024-26791
btrfs: dev-replace: properly validate device names
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: dev-replace: properly validate device names There's a syzbot report that device name buffers passed to device replace are not properly checked for string termination which could lead to a read out of bounds in getname_kernel(). Add a helper that validates both source and target device name buffers. For devid as the source initialize the buffer to empty string in case something tries to read it later. This was originally analyzed and fixed in a different way by Edward Adam Davis (see links).
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.8
References 8
git.kernel.org
- stable/c/11d7a2e429c02d51e2dc90713823ea8b8d3d3a84
- stable/c/c6652e20d7d783d060fe5f987eac7b5cabe31311
- stable/c/2886fe308a83968dde252302884a1e63351cf16d
- stable/c/ab2d68655d0f04650bef09fee948ff80597c5fb9
- stable/c/f590040ce2b712177306b03c2a63b16f7d48d3c8
- stable/c/b1690ced4d2d8b28868811fb81cd33eee5aefee1
- stable/c/343eecb4ff49a7b1cc1dfe86958a805cf2341cfb
- stable/c/9845664b9ee47ce7ee7ea93caf47d39a9d4552c4