SB20260816292 - Use-after-free in Linux kernel batman-adv
Published: August 16, 2026
Security Bulletin ID
SB20260816292
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-72233)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to use-after-free in batman-adv BLA handling when processing crafted network packets. A local attacker can send a specially crafted packet to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/41819c5467b6eb8ab4567f0ac98702ce9b6abbb1
- https://git.kernel.org/stable/c/4a6673c55752a7aa41e28f51660eb981504ca088
- https://git.kernel.org/stable/c/a9ab19fbca86b32e9a9ae9e1a63e70a7eab3400f
- https://git.kernel.org/stable/c/ab2bac47a02637df1128a151e81d3ec14767f4bb
- https://git.kernel.org/stable/c/cdf3b5af2bc4431e58629e8ad2086b1e9185c761
- https://git.kernel.org/stable/c/dc16bbf53cede1baf564bf0c8a861114b64e18b3
- https://git.kernel.org/stable/c/e5e18886aadd3870e2d84e32a9678317fab1dd9e
- https://git.kernel.org/stable/c/f4fb97ecf677cd9c3aa4f3bfc6fbf5b0e4bdbbbf