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18 lines
1.3 KiB
Markdown
18 lines
1.3 KiB
Markdown
### [CVE-2024-26590](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26590)
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### Description
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In the Linux kernel, the following vulnerability has been resolved:erofs: fix inconsistent per-file compression formatEROFS can select compression algorithms on a per-file basis, and eachper-file compression algorithm needs to be marked in the on-disksuperblock for initialization.However, syzkaller can generate inconsistent crafted images that usean unsupported algorithmtype for specific inodes, e.g. use MicroLZMAalgorithmtype even it's not set in `sbi->available_compr_algs`. Thiscan lead to an unexpected "BUG: kernel NULL pointer dereference" ifthe corresponding decompressor isn't built-in.Fix this by checking against `sbi->available_compr_algs` for eachm_algorithmformat request. Incorrect !erofs_sb_has_compr_cfgs presetbitmap is now fixed together since it was harmless previously.
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### POC
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#### Reference
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No PoCs from references.
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#### Github
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- https://github.com/fkie-cad/nvd-json-data-feeds
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