CVE-2026-46238

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-46238
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46238.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-46238
Downstream
Related
Published
2026-05-28T09:41:06.816Z
Modified
2026-07-15T01:49:04.841046207Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
batman-adv: stop caching unowned originator pointers in BAT IV
Details

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

batman-adv: stop caching unowned originator pointers in BAT IV

BAT IV keeps the last-hop neighbor address in each neighnode, but some paths also cache an originator pointer derived from a temporary lookup. That pointer is not owned by the neighnode and may no longer refer to a live originator entry after purge handling runs.

Stop storing the auxiliary originator pointer in the BAT IV neighbor state. When BAT IV needs the neighbor originator data, resolve it from the stored neighbor address and drop the reference again after use.

[sven: avoid bonding logic for outgoing OGM]

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46238.json",
    "cna_assigner": "Linux"
}
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
c6c8fea29769d998d94fcec9b9f14d4b52b349d3
Fixed
86b2b58d7c228d850c8c78e4144e6123e8ed2718
Fixed
384e3050a42be9085d50507b4d5f8266a588d742
Fixed
8c16c68fdbb69778f8d04f650340c3f4d1518f8e
Fixed
aafcbaf1159ea224528ca4075d0ba8c10ef374af
Fixed
6e20700f8c524ac379ba8274ff5d453023b7c006
Fixed
09dc0d1a12222ffca6481916eab3cfea477b9620
Fixed
67bceeb22207f1f5a402973a3a0809e5f2698f38
Fixed
f03e8583532941b07761c5429de7d50766fa3110

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46238.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.38
Fixed
5.10.258
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.209
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.175
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.140
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.90
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.32
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46238.json"