batman-adv: frag: free unfragmentable packet
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: frag: free unfragmentable packet The caller of batadv_frag_send_packet() assume that the skb provided to the function are always consumed. But the pre-check for an empty payload or the zero fragment size returned an error without any further actions. A failed pre-check must use the same error handling code as the rest of the function.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72230
- 2026-10-03 Alias added: GHSA-rc8c-qgh9-hw5x
- 2026-11-06 CISA SSVC decision points changed
References
Other 8
- https://git.kernel.org/stable/c/a5155aeeae8ead3c6081f7f197608033e4dcfe75
- https://git.kernel.org/stable/c/04ccbed8179e7d4d0906d00939300ddc5b48ce7e
- https://git.kernel.org/stable/c/601dff01a03ecced59938cdd69eeb2c66e4158f2
- https://git.kernel.org/stable/c/740542f11bf8c86411c429fbd7f84fc6bee80e76
- https://git.kernel.org/stable/c/59e1da1ab354d1f2b7bab8d44f846262f990ad9d
- https://git.kernel.org/stable/c/8f54162e07d3eea1e4ff21464cf2a815d79b6510
- https://git.kernel.org/stable/c/08047838817561cef33ada9774a2a4663d499ecb
- https://git.kernel.org/stable/c/6b628425aed49a1c7a4ffc997583840fc582d32b
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Sources
- CVE-2026-72230 · CVE Program
- CVE-2026-72230 · NVD
- FIRST EPSS
- GHSA-rc8c-qgh9-hw5x · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72230 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences