CVE-2026-64054
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2026-07-19
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (1)
Affected Software (8)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e < 5098b223f0f0c5c18a3884a8b0ea5bd4a0c7bd75 |
| Linux | Linux | 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e < 31767bf852b59f05125b58a17007e4cd1ea9eb2e |
| Linux | Linux | 5d5d4700e75d861e83bf18eb6bf66ff90f85fe4e < a9a2fa1da619f276580b0d4c5d12efac89e8642b |
| Linux | Linux | 6.13 |
| linux | linux_kernel | 6.13 – 6.18.34 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |