Tracker / CVE-2023-52976
CVE-2023-52976
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: efi: fix potential NULL deref in efi_mem_reserve_persistent When iterating on a linked list, a result of memremap is dereferenced without checking it for NULL. This patch adds a check that falls back on allocating a new page in case memremap doesn't succeed. Found by Linux Verification Center (linuxtesting.org) with SVACE. [ardb: return -ENOMEM instead of breaking out of the loop]
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.1.16 → 5.4.232 |
| linux | linux_kernel · 5.11 → 5.15.93 |
| linux | linux_kernel · 5.16 → 6.1.11 |
| linux | linux_kernel · 5.5 → 5.10.168 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.