CVE-2026-72017
net: macb: drop in-flight Tx SKBs on close
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
89e5785fc8a6b9eafd37f2318a9a76d479c796be < 6124bd785073659c99385094657b77382ebce11b 89e5785fc8a6b9eafd37f2318a9a76d479c796be < 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4 89e5785fc8a6b9eafd37f2318a9a76d479c796be < 26b131b2d5b55a81ef6182769d28105a870c0eb2 89e5785fc8a6b9eafd37f2318a9a76d479c796be < 109241d9880488aafd8e104832b4d4859ad57244 89e5785fc8a6b9eafd37f2318a9a76d479c796be < 27f575836cfebbf872dec020428742b10650a955
Linux / Linux
2.6.20
References
git.kernel.org: https://git.kernel.org/stable/c/6124bd785073659c99385094657b77382ebce11b git.kernel.org: https://git.kernel.org/stable/c/2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4 git.kernel.org: https://git.kernel.org/stable/c/26b131b2d5b55a81ef6182769d28105a870c0eb2 git.kernel.org: https://git.kernel.org/stable/c/109241d9880488aafd8e104832b4d4859ad57244 git.kernel.org: https://git.kernel.org/stable/c/27f575836cfebbf872dec020428742b10650a955