CVE-2024-56660: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: DR, prevent potential error pointer dereference The dr_domain_add_vport_cap() function generally returns NULL on error but sometimes we want it to return ERR_PTR(-EBUSY) so the caller can retry. The problem here is that "ret" can be either -EBUSY or -ENOMEM and if it's and -ENOMEM then the error pointer is propogated back and eventually dereferenced in dr_ste_v0_build_src_gvmi_qpn_tag().

Affected products

• Linux Linux Kernel: from 5.16, before 6.1.121 (fixed in 6.1.121); from 6.2, before 6.6.67 (fixed in 6.6.67); from 6.7, before 6.12.6 (fixed in 6.12.6); version 6.13 only

Published 2024-12-27. Last modified 2026-06-17.