Detections
Analytics
CVE-2024-42306
medium
Description
In the Linux kernel, the following vulnerability has been resolved: udf: Avoid using corrupted block bitmap buffer When the filesystem block bitmap is corrupted, we detect the corruption while loading the bitmap and fail the allocation with error. However the next allocation from the same bitmap will notice the bitmap buffer is already loaded and tries to allocate from the bitmap with mixed results (depending on the exact nature of the bitmap corruption). Fix the problem by using BH_verified bit to indicate whether the bitmap is valid or not.
References
https://git.kernel.org/stable/c/cae9e59cc41683408b70b9ab569f8654866ba914
https://git.kernel.org/stable/c/a90d4471146de21745980cba51ce88e7926bcc4f
https://git.kernel.org/stable/c/8ca170c39eca7cad6e0cfeb24e351d8f8eddcd65
https://git.kernel.org/stable/c/6a43e3c210df6c5f00570f4be49a897677dbcb64
https://git.kernel.org/stable/c/57053b3bcf3403b80db6f65aba284d7dfe7326af
https://git.kernel.org/stable/c/271cab2ca00652bc984e269cf1208699a1e09cdd
https://git.kernel.org/stable/c/2199e157a465aaf98294d3932797ecd7fce942d5