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CVE-2026-80599

batman-adv: dat: ensure accessible eth_hdr proto field

HIGH
8.1
CVSS Score
Published: August 28, 2026 at 06:48 AM UTC
Updated: October 16, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth_hdr proto field When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to other call sites, batadv_dat_get_vid() and its caller didn't make sure this is true. This could have caused an out-of-bounds access.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
3.13be1db4f6615b5e6156c807ea8985171c215c2d57
Vendor states this is fixed in 26560c4a03dc4d607331600c187f59ab2df5f341 (fixed)
Vendor states this is fixed in 3c62694c31f043568c3f4784b8d247cc3bea6b4c (fixed)
Vendor states this is fixed in 4407ff3af469356f9641c4a6e7072309bae86bea (fixed)
Vendor states this is fixed in 5836a050d02e9598fa0f71e88dde28b63dfa35e3 (fixed)
Vendor states this is fixed in 6d3ea37074bb747f745d28138f87745ba9bd97c5 (fixed)
Vendor states this is fixed in 7913935d41f166c367bbf7cc76a79e50044388e8 (fixed)
Vendor states this is fixed in 8f76277d02176cd739945bba3379448e2e22e799 (fixed)
Vendor states this is fixed in da3677b5ed362742d30ceab31bfafcdc74dc2642 (fixed)
Vendor states this is fixed in 3.13 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/da3677b5ed362742d30ceab31bfafcdc74dc2642
Source: cverecord
https://git.kernel.org/stable/c/6d3ea37074bb747f745d28138f87745ba9bd97c5
Source: cverecord
https://git.kernel.org/stable/c/7913935d41f166c367bbf7cc76a79e50044388e8
Source: cverecord
https://git.kernel.org/stable/c/3c62694c31f043568c3f4784b8d247cc3bea6b4c
Source: cverecord
https://git.kernel.org/stable/c/5836a050d02e9598fa0f71e88dde28b63dfa35e3
Source: cverecord
https://git.kernel.org/stable/c/8f76277d02176cd739945bba3379448e2e22e799
Source: cverecord
https://git.kernel.org/stable/c/4407ff3af469356f9641c4a6e7072309bae86bea
Source: cverecord
https://git.kernel.org/stable/c/26560c4a03dc4d607331600c187f59ab2df5f341

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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