CVE-2026-64054
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e < 5098b223f0f0c5c18a3884a8b0ea5bd4a0c7bd75 | affected |
| Linux | Linux | 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e < 31767bf852b59f05125b58a17007e4cd1ea9eb2e | affected |
| Linux | Linux | 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e < a9a2fa1da619f276580b0d4c5d12efac89e8642b | affected |
| Linux | Linux | 6.13 | affected |
| Linux | Linux | 0 < 6.13 | unaffected |
| Linux | Linux | 6.18.34 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.11 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/5098b223f0f0c5c18a3884a8b0ea5bd4a0c7bd75
- https://git.kernel.org/stable/c/31767bf852b59f05125b58a17007e4cd1ea9eb2e
- https://git.kernel.org/stable/c/a9a2fa1da619f276580b0d4c5d12efac89e8642b
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