CVE-2024-42142 (GCVE-0-2024-42142)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:46 – Updated: 2025-11-03 22:02
VLAI?
Title
net/mlx5: E-switch, Create ingress ACL when needed
Summary
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: # devlink dev param set pci/0000:08:00.0 name esw_port_metadata \ 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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1749c4c51c16e3e078faae0a876d01bafb187a74 , < bc3ff8d3c05044de57865ebbb78cca8f7da3e595 (git)
Affected: 1749c4c51c16e3e078faae0a876d01bafb187a74 , < 3e3551f8702978cd2221d2614ca6d6727e785324 (git)
Affected: 1749c4c51c16e3e078faae0a876d01bafb187a74 , < 83bc1a129f7fd0d7d05036ceb7ee69102624e320 (git)
Affected: 1749c4c51c16e3e078faae0a876d01bafb187a74 , < b20c2fb45470d0c7a603613c9cfa5d45720e17f2 (git)
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    Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.98 , ≤ 6.1.* (semver)
Unaffected: 6.6.39 , ≤ 6.6.* (semver)
Unaffected: 6.9.9 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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