batman-adv: frag: fix primary_if leak on failed linearization
Priority LOW 22Published · Updated
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: fix primary_if leak on failed linearization If the skb has a frag_list, it must be linearized before it can be split using skb_split(). But when this step failed, it must not only free the skb but also take care of the reference to the already found primary_if.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0022 12th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.261, 5.15.212, 4.15 +9
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10.117 to before 5.10.261; 5.15.41 to before 5.15.212; 4.14.280 to before 4.15; 4.19.244 to before 4.20; 5.4.195 to before 5.5; 5.17.9 to before 5.18 | 5.10.261, 5.15.212, 4.15, 4.20, 5.5, 5.18 | Patch available | CNA |
| Linux | Linux | 5.18 and later | 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.117 to before 5.10.261; 5.15.41 to before 5.15.212; 4.14.280 to before 4.15; 4.19.244 to before 4.20; 5.4.195 to before 5.5; 5.17.9 to before 5.18 Fixed in 5.10.261, 5.15.212, 4.15, 4.20, 5.5, 5.18 Patch available CNA
- Linux VendorLinux Affected 5.18 and later 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 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.261, 5.15.212, 4.15, 4.20, 5.5, 5.18
- 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-2026-72228
- 2026-10-03 Alias added: GHSA-pp95-v844-r482
- 2026-11-06 CISA SSVC decision points changed
References
Other 8
- https://git.kernel.org/stable/c/e59b1960f71521ce4eb4397c4e82f5285601ab57
- https://git.kernel.org/stable/c/c1b28432fd6345e0d2308f39c507ed5750c265d2
- https://git.kernel.org/stable/c/4f3bf293f7662500142234ae6f23725953690bc9
- https://git.kernel.org/stable/c/d2148aeee93197ccf821114489775132f28eebf5
- https://git.kernel.org/stable/c/db3c700826e8126fbdaa83468a9c4ee4ee65319f
- https://git.kernel.org/stable/c/a90f4fff9025371bce5371daa610af957de8dd6a
- https://git.kernel.org/stable/c/777a88256d6f70672116e53400659cc417e1feaa
- https://git.kernel.org/stable/c/353d2c1d5492e53ae34f490a84494124dc3d3531
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- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-72228 · CVE Program
- CVE-2026-72228 · NVD
- FIRST EPSS
- GHSA-pp95-v844-r482 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72228 · 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