CVE-2026-72234

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Source
https://cve.org/CVERecord?id=CVE-2026-72234
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72234.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72234
Downstream
Published
2026-08-15T05:54:24Z
Modified
2026-08-18T03:56:39Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
batman-adv: access unicast_ttvn skb->data only after skb realloc
Details

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

batman-adv: access unicast_ttvn skb->data only after skb realloc

The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

This was done correctly for the ethernet header but missed for the unicast_packet pointer.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72234.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
c018ad3de61a1dc4194879a53e5559e094aa7b1a
Fixed
aa9558af859934f24717d4bab97d61004f91a736
Fixed
9c2c05629e46c1fd43931506d41c56a885a98eb4
Fixed
7b162b36de750565404cd3b98315706622c6974f
Fixed
ed90eb5c68420cdfe67ec1f773324198d2ef6f50
Fixed
979175834a699ccc3c4c0b0ba60ecae0f135a587
Fixed
b8afcf799b2cc92c41beebd029e53ed18960184a
Fixed
9a7b7248798123efbd5fafe58461d57c7cc718af
Fixed
7141990add3f75436f2933cb310654cad3b1e3e9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72234.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.13.0
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-2026-72234.json"