CVE-2026-98492: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths Fix 3 leaks in macb_alloc() error paths: - Tx buffer allocated but crossing a 4G boundary: Tx leaked. - Rx buffer allocation fails: Tx leaked. - Rx buffer allocated but crossing a 4G boundary: Tx & Rx leaked. This is because our error handling calls macb_free(bp) which in turn frees the buffers stored in bp->queues[0], but nothing has been stored in there. Fix by storing allocated buffers into bp->queues[0] ASAP.

Засегнати продукти

• Linux Linux: 78d901897b3cae06b38f54e48a2378cf9da21175 преди bda487567d0b7b15dfa876511085c0666b9efad5; 78d901897b3cae06b38f54e48a2378cf9da21175 преди 259e6cbb6a097da8ced544ee92a6fbde35aa1338; 78d901897b3cae06b38f54e48a2378cf9da21175 преди 23d42b9a3bcd55b17d3b371544fedc708c2397e9; 982a4d9a2e12b693f684eff943043a607628d871; 6.17.3 преди 6.18
• Linux Linux: 6.18; преди 6.18; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98492
• https://nvd.nist.gov/vuln/detail/CVE-2026-98492
• https://git.kernel.org/stable/c/bda487567d0b7b15dfa876511085c0666b9efad5
• https://git.kernel.org/stable/c/259e6cbb6a097da8ced544ee92a6fbde35aa1338
• https://git.kernel.org/stable/c/23d42b9a3bcd55b17d3b371544fedc708c2397e9