CVE-2026-72318
In the Linux kernel, the following vulnerability has been resolved: cifs: validate DFS referral string offsets parse_dfs_referrals() validates that the respons…
Impact
In the Linux kernel, the following vulnerability has been resolved: cifs: validate DFS referral string offsets parse_dfs_referrals() validates that the response header and referral array fit in the received buffer, but each referral also contains string offsets supplied by the server. Those offsets are used to compute the DfsPath and NetworkAddress string pointers without checking whether they still point inside the response buffer. A malformed referral can therefore make the computed pointer exceed the end of the buffer. The resulting negative max_len is then passed to cifs_strndup_from_utf16(), and the non-Unicode path forwards it to kstrndup() as a size_t, allowing strnlen() to read out of bounds. Validate each string offset before deriving the string pointer.
Affected packages
This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/027a84ac6b50c12ef767c15abfc58aa865820e9e
- https://git.kernel.org/stable/c/76c607b9353d377b1d1b11db50e743eee0ccf658
- https://git.kernel.org/stable/c/929a85932d14190988f1eafd6ee8cc68d66ace0b
- https://git.kernel.org/stable/c/b784cd1c24d89bf71be2efe1e948ff7c03371e57
- https://git.kernel.org/stable/c/c37abc99bb3de3d3219ecef253d649f74117fd83
- https://git.kernel.org/stable/c/d64b6be5740ce230aca184d8d224c75d9866045d