CVE-2026-72228

batman-adv: frag: fix primary_if leak on failed linearization

N/A

Published: August 15, 2026 at 05:54 AM UTC

Updated: August 17, 2026 at 06:18 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

Description

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.

Affected

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

Linux Kernel · Linux

95%

v ≥ 4.14.280v ≥ 4.19.244v ≥ 5.17.9v ≥ 5.4.1954.14.280 ≤ v < 4.154.19.244 ≤ v < 4.205.10.117 ≤ v < 5.10.2615.15.41 ≤ v < 5.15.2125.17.9 ≤ v < 5.185.18 ≤ v < 6.1.1785.18 ≤ v < 6.12.975.18 ≤ v < 6.18.405.18 ≤ v < 6.6.1455.18 ≤ v < 7.1.55.18 ≤ v < 7.25.4.195 ≤ v < 5.53915341a935f3397f65a01580dc3bfc4cdf53d144.14.280 4.19.244 5.10.117 5.15.41 5.17.9 5.18 5.4.1955853618b022b8ed287a278540303e1b283d6f2475ed837a7e05bcba72bdcd86b12547ea5b796cc018f37aad74f46dd5d8b95fac17804b75f77931fa9a063f2fba3fa633a599253b62561051ac185fa99a6a73781b460c4fe2cf2c40400ac91dfddb353fabea410635595f8efbec90c948da04c3613ef87ea

Vendor states this is fixed in 353d2c1d5492e53ae34f490a84494124dc3d3531 (fixed)

Vendor states this is fixed in 4f3bf293f7662500142234ae6f23725953690bc9 (fixed)

Vendor states this is fixed in 777a88256d6f70672116e53400659cc417e1feaa (fixed)

Vendor states this is fixed in a90f4fff9025371bce5371daa610af957de8dd6a (fixed)

Vendor states this is fixed in c1b28432fd6345e0d2308f39c507ed5750c265d2 (fixed)

Vendor states this is fixed in d2148aeee93197ccf821114489775132f28eebf5 (fixed)

Vendor states this is fixed in db3c700826e8126fbdaa83468a9c4ee4ee65319f (fixed)

Vendor states this is fixed in e59b1960f71521ce4eb4397c4e82f5285601ab57 (fixed)

Affected range stops below 4.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.20, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 5.10.261 (unaffected)

Vendor states this is fixed in 5.15.212 (unaffected)