Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: xfrm: Update ipcompscratches with NULL when freed Currently, if ipcompallocscratches fails to allocate memory, ipcompscratches holds an obsolete address. Therefore, when we try to free the percpu scratches using...

CVE-2022-50569

Summary of CVE-2022-50569 (Linux kernel xfrm/ipcomp_scratches): The vulnerability arises when ipcomp_alloc_scratches() fails to allocate per-CPU scratches, leaving ipcomp_scratches with an obsolete address. During ipcomp_free_scratches(), the code frees per-CPU scratch space by iterating CPUs and...

kernel: xfrm: Update ipcomp_scratches with NULL when freed

In the Linux kernel, the following vulnerability has been resolved: xfrm: Update ipcompscratches with NULL when freed Currently if ipcompallocscratches fails to allocate memory ipcompscratches holds obsolete address. So when we try to free the percpu scratches using ipcompfreescratches it tries t...