cve.bz

CVE-2023-52976

5.5 mediumEPSS 0.3%

Medium (5.5) in linux linux kernel. EPSS 0.3% chance of exploitation in the next 30 days.

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]

Severity

CVSS 3.1

5.5 medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE
CWE-476
Published
Modified
Record from
the NVD, synced

Affected

References

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