CVE-2024-41076

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

NFSv4: Fix memory leak in nfs4_set_security_label

We leak nfs_fattr and nfs4_label every time we set a security xattr.

Weakness

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Affected Software

Potential Mitigations

• Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
• For example, glibc in Linux provides protection against free of invalid pointers.
• When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
• To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.

References

• https://git.kernel.org/stable/c/899604a7c958771840941caff9ee3dd8193d984c
• https://git.kernel.org/stable/c/aad11473f8f4be3df86461081ce35ec5b145ba68
• https://git.kernel.org/stable/c/b98090699319e64f5de1e8db5bb75870f1eb1c6e
• https://git.kernel.org/stable/c/d130220ccc94d74d70da984a199477937e7bf03c