In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: E-switch, Create ingress ACL when needed
Currently, ingress acl is used for three features. It is created only
when vport metadata match and prio tag are enabled. But active-backup
lag mode also uses it. It is independent of vport metadata match and
prio tag. And vport metadata match can be disabled using the
following devlink command:
value false cmode runtime
If ingress acl is not created, will hit panic when creating drop rule
for active-backup lag mode. If always create it, there will be about
5% performance degradation.
Fix it by creating ingress acl when needed. If esw_port_metadata is
true, ingress acl exists, then create drop rule using existing
ingress acl. If esw_port_metadata is false, create ingress acl and
then create drop rule.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-bluefield | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gcp | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-gke | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-ibm | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-lowlatency | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-nvidia | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-nvidia-6.5 | < any | UNKNOWN |
git.kernel.org/linus/b20c2fb45470d0c7a603613c9cfa5d45720e17f2 (6.10-rc7)
git.kernel.org/stable/c/3e3551f8702978cd2221d2614ca6d6727e785324
git.kernel.org/stable/c/83bc1a129f7fd0d7d05036ceb7ee69102624e320
git.kernel.org/stable/c/b20c2fb45470d0c7a603613c9cfa5d45720e17f2
git.kernel.org/stable/c/bc3ff8d3c05044de57865ebbb78cca8f7da3e595
launchpad.net/bugs/cve/CVE-2024-42142
nvd.nist.gov/vuln/detail/CVE-2024-42142
security-tracker.debian.org/tracker/CVE-2024-42142
www.cve.org/CVERecord?id=CVE-2024-42142