CVE-2024-56660 Information

Description

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 et\ 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().

Reference

https://git.kernel.org/stable/c/11776cff0b563c8b8a4fa76cab620bfb633a8cb8 https://git.kernel.org/stable/c/325cf73a1b449fea3158ab99d03a7a717aad1618 https://git.kernel.org/stable/c/61f720e801443d4e2a3c0261eda4ad8431458dca https://git.kernel.org/stable/c/a59c61a1869ceefc65ef02886f91e8cd0062211f