NULL pointer dereference in Linux

CVE-2022-48879

In the Linux kernel, the following vulnerability has been resolved: efi: fix NULL-deref in init error path In cases where runtime services are not supported or have been disabled, the runtime services workqueue will never have been allocated. Do not try to destroy the workqueue unconditionally in the unlikely event that EFI initialisation fails to avoid dereferencing a NULL pointer.

EPSS: 0.002 (15.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Linux — versions 98086df8b70c06234a8f4290c46064e44dafa0ed, 5167f194da6947e19a3e970485ee3ccb44f7958d, 5.10.164
  • Linux Linux_kernel

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-48879?
CVE-2022-48879 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2024-08-21.
How severe is CVE-2022-48879?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2022-48879 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.