Vulnerability Details CVE-2026-64054
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 6.1%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2026-64054
-
cpe:2.3:o:linux:linux_kernel:6.19
-
cpe:2.3:o:linux:linux_kernel:6.19.1
-
cpe:2.3:o:linux:linux_kernel:6.19.10
-
cpe:2.3:o:linux:linux_kernel:6.19.11
-
cpe:2.3:o:linux:linux_kernel:6.19.12
-
cpe:2.3:o:linux:linux_kernel:6.19.13
-
cpe:2.3:o:linux:linux_kernel:6.19.14
-
cpe:2.3:o:linux:linux_kernel:6.19.3
-
cpe:2.3:o:linux:linux_kernel:6.19.4
-
cpe:2.3:o:linux:linux_kernel:6.19.6
-
cpe:2.3:o:linux:linux_kernel:6.19.7
-
cpe:2.3:o:linux:linux_kernel:6.19.8
-
cpe:2.3:o:linux:linux_kernel:6.19.9
-
cpe:2.3:o:linux:linux_kernel:7.0
-
cpe:2.3:o:linux:linux_kernel:7.0.1
-
cpe:2.3:o:linux:linux_kernel:7.0.10
-
cpe:2.3:o:linux:linux_kernel:7.0.2
-
cpe:2.3:o:linux:linux_kernel:7.0.3
-
cpe:2.3:o:linux:linux_kernel:7.0.4
-
cpe:2.3:o:linux:linux_kernel:7.0.5
-
cpe:2.3:o:linux:linux_kernel:7.0.6
-
cpe:2.3:o:linux:linux_kernel:7.0.7
-
cpe:2.3:o:linux:linux_kernel:7.0.8
-
cpe:2.3:o:linux:linux_kernel:7.0.9
-
cpe:2.3:o:linux:linux_kernel:7.1