CVE-2026-72350

Source
https://cve.org/CVERecord?id=CVE-2026-72350
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72350.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72350
Downstream
Published
2026-08-15T05:55:53.532Z
Modified
2026-08-18T03:56:41.890077776Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
netfilter: xt_u32: reject invalid shift counts
Details

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

netfilter: xt_u32: reject invalid shift counts

u32matchit() executes rule-supplied shift operands on a 32-bit value. A malformed u32 rule can provide a shift count of 32 or more, triggering an undefined shift out-of-bounds during packet evaluation.

Validate XTU32LEFTSH and XTU32RIGHTSH operands in u32mtcheckentry() and reject malformed rules before they reach the packet path.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72350.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1b50b8a371e90a5e110f466e4ac02cf6b5f681de
Fixed
ca7c92d9701249e6daf132087756a88cbf2bb2a3
Fixed
b33b44250d57ab0e5a1e2571b5285fb0d0a7f382
Fixed
728f479dc0447ae7eaef87926ff49142e415a811
Fixed
0a8b7a6d763775709c601f584e709ae48bcc000a
Fixed
cce42014415cecd98aa49b3950e7b02ee7c81268
Fixed
a597a722fb71a534138c20359b655726622b5f17
Fixed
00d034fe8230dfc5832fe011ff2d81c1a2cc7a29
Fixed
64cdf7d30ac18e43df6c48004435febb965809a8

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72350.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.23
Fixed
5.10.261
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72350.json"