CVE-2024-33619

HIGH7.8

efi: libstub: only free priv.runtime_map when allocated

Published Jun 21, 2024

Modified 1 weeks ago

Details

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

efi: libstub: only free priv.runtime_map when allocated

priv.runtime_map is only allocated when efi_novamap is not set. Otherwise, it is an uninitialized value. In the error path, it is freed unconditionally. Avoid passing an uninitialized value to free_pool. Free priv.runtime_map only when it was allocated.

This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

References

WEB

https://git.kernel.org/stable/c/4b2543f7e1e6b91cfc8dd1696e3cdf01c3ac8974

WEB

https://git.kernel.org/stable/c/6ca67a5fe1c606d1fbe24c30a9fc0bdc43a18554

WEB

https://git.kernel.org/stable/c/9dce01f386c9ce6990c0a83fa14b1c95330b037e

WEB

https://git.kernel.org/stable/c/b8938d6f570f010a1dcdbfed3e5b5d3258c2a908

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2024-33619