In the Linux kernel, the following vulnerability has been resolved:

exfat: fix out-of-bounds access of directory entries

In the case of the directory size is greater than or equal to
the cluster size, if start_clu becomes an EOF cluster(an invalid
cluster) due to file system corruption, then the directory entry
where ei->hint_femp.eidx hint is outside the directory, resulting
in an out-of-bounds access, which may cause further file system
corruption.

This commit adds a check for start_clu, if it is an invalid cluster,
the file or directory will be treated as empty.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-53147
• https://git.kernel.org/stable/c/184fa506e392eb78364d9283c961217ff2c0617b
• https://git.kernel.org/stable/c/3ddd1cb2b458ff6a193bc845f408dfff217db29e
• https://git.kernel.org/stable/c/a0120d6463368378539ef928cf067d02372efb8c