SB20260816291 - Out-of-bounds read in Linux kernel batman-adv
Published: August 16, 2026
Security Bulletin ID
SB20260816291
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-72232)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in batadv_interface_tx() when processing a truncated packet redirected to a batadv interface through a tc filter. A local user can attach a tc filter that truncates the packet and redirects it to a batadv interface to disclose sensitive information.
Exploitation requires eBPF TC hook access.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/38cd10b0aeec755d89f78722a2b83f4088ff0cb0
- https://git.kernel.org/stable/c/49df66b7993c80b80c7eb9a84ba5b3410c8296a0
- https://git.kernel.org/stable/c/58799078afebd5115e052bf69ad6697f9759dd6f
- https://git.kernel.org/stable/c/6b4f521e01257387906f8b969ad3450d8208d4e2
- https://git.kernel.org/stable/c/811fea37620f2097955d95ce81cfdba03fd30f1b
- https://git.kernel.org/stable/c/9e16b6751a8206de0b865d99bb02771e6751d12d
- https://git.kernel.org/stable/c/dbeb4145d9778f922f459935da9a027750765a69
- https://git.kernel.org/stable/c/e6640923afee619d9fa82b07394dc9498e202304