Riskcovery

CVE-2026-64054

net: shaper: reject duplicate leaves in GROUP request

State
Published
Severity
Not scored
Published
Jul 19, 2026
Updated
Jul 19, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

net: shaper: reject duplicate leaves in GROUP request

net_shaper_nl_group_doit() does not deduplicate NET_SHAPER_A_LEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in old_nodes[]. The cleanup loop double frees the parent. Of course the same parent may still be in old_nodes[] twice if we are moving multiple of its leaves.

Note that this patch also implicitly fixes the fact that the i >= leaves_count path forgets to set ret.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e to before 5098b223f0f0c5c18a3884a8b0ea5bd4a0c7bd75Affected
  • 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e to before 31767bf852b59f05125b58a17007e4cd1ea9eb2eAffected
  • 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e to before a9a2fa1da619f276580b0d4c5d12efac89e8642bAffected
LinuxLinux
  • 6.13Affected
  • before 6.13Not affected
  • 6.18.34 through 6.18.*Not affected
  • 7.0.11 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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