Vulnerability in Linux

CVE-2024-56690

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns -EAGAIN, the unnecessary panic will occur when panic_on_warn set 1. Fix this issue by calling crypto layer directly without parallelization in that case.

EPSS: 0.002 (8.8th 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 546c1796ad1ed0d87dab3c4b5156d75819be2316, 4.19.300, c55fc098fd9d2dca475b82d00ffbcaf97879d77e
  • Linux Linux_kernel

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-56690?
CVE-2024-56690 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2024-12-28.
How severe is CVE-2024-56690?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2024-56690 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.