CVE-2024-50013

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

exfat: fix memory leak in exfat_load_bitmap()

If the first directory entry in the root directory is not a bitmap directory entry, bh will not be released and reassigned, which will cause a memory leak.

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/4e1813e52f86eb8db0c6c9570251f2fcbc571f5d
• https://git.kernel.org/stable/c/89081e8407e637463db5880d168e3652fb9f4330
• https://git.kernel.org/stable/c/bf0b3b35259475d1fe377bcaa565488e26684f7a
• https://git.kernel.org/stable/c/d2b537b3e533f28e0d97293fe9293161fe8cd137
• https://git.kernel.org/stable/c/dca359db1eb37f334267ebd7e3cab9a66d191d5b
• https://git.kernel.org/stable/c/ddf704c2ce3b73f38d2dd8cf1bb0f7ec038bdf63
• https://git.kernel.org/stable/c/f692160d3e1e5450605071b8df8f7d08d9b09a83