CVE-2026-72017
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linux0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655, 6124bd785073659c99385094657b77382ebce11b, 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4, 26b131b2d5b55a81ef6182769d28105a870c0eb2, 109241d9880488aafd8e104832b4d4859ad57244, 27f575836cfebbf872dec020428742b10650a955 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 89e5785fc8a6b9eafd37f2318a9a76d479c796be ≤ v < 0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655, 89e5785fc8a6b9eafd37f2318a9a76d479c796be ≤ v < 6124bd785073659c99385094657b77382ebce11b, 89e5785fc8a6b9eafd37f2318a9a76d479c796be ≤ v < 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4, 89e5785fc8a6b9eafd37f2318a9a76d479c796be ≤ v < 26b131b2d5b55a81ef6182769d28105a870c0eb2, 89e5785fc8a6b9eafd37f2318a9a76d479c796be ≤ v < 109241d9880488aafd8e104832b4d4859ad57244, 89e5785fc8a6b9eafd37f2318a9a76d479c796be ≤ v < 27f575836cfebbf872dec020428742b10650a955, 2.6.20 | 0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655, 6124bd785073659c99385094657b77382ebce11b, 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4, 26b131b2d5b55a81ef6182769d28105a870c0eb2, 109241d9880488aafd8e104832b4d4859ad57244, 27f575836cfebbf872dec020428742b10650a955 |
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