CVE-2024-26590
mediumpriority · track · 22EPSS 0.002 · 13 %ileDEEURUUSEPSS · scored 2026-10-27
In the Linux kernel, the following vulnerability has been resolved: erofs: fix inconsistent per-file compression format EROFS can select compression algorithms on a per-file basis, and each per-file compression algorithm needs to be marked in the on-disk superblock for initialization. However, syzkaller can generate inconsistent crafted images that use an unsupported algorithmtype for specific inodes, e.g. use MicroLZMA algorithmtype even it's not set in `sbi->available_compr_algs`. This can lead to an unexpected "BUG: kernel NULL pointer dereference" if the corresponding decompressor isn't built-in. Fix this by checking against `sbi->available_compr_algs` for each m_algorithmformat request. Incorrect !erofs_sb_has_compr_cfgs preset bitmap is now fixed together since it was harmless previously.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (42)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2024-0473Linux Kernel: Mehrere SchwachstellenDeutsch2024-02-22csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen oder einen nicht spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-26590/cnnvd
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=118a8cf504d7dfa519562d000f423ee3ca75d2c4Patchcnnvd
- https://git.kernel.org/stable/c/118a8cf504d7dfa519562d000f423ee3ca75d2c4cnnvd
- https://git.kernel.org/stable/c/823ba1d2106019ddf195287ba53057aee33cf724cnnvd
- https://git.kernel.org/stable/c/eed24b816e50c6cd18cbee0ff0d7218c8fced199cnnvd
- https://git.kernel.org/stable/c/118a8cf504d7dfa519562d000f423ee3ca75d2c4enisa_euvd
- https://git.kernel.org/stable/c/47467e04816cb297905c0f09bc2d11ef865942d9enisa_euvd
- https://git.kernel.org/stable/c/823ba1d2106019ddf195287ba53057aee33cf724enisa_euvd
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