CVE-2026-74545: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: rtase: fix double free of multi-frag skb on DMA map failure In rtase_start_xmit(), when the head buffer DMA mapping fails after rtase_xmit_frags() has mapped all fragments, the error path clears the fragment descriptors with rtase_tx_clear_range(), which frees the skb through the last-frag slot and accounts tx_dropped. Control then falls through to the common error label, which frees the same skb a second time and counts it again. Return right after clearing the fragments when the skb owns frags; the no-frag case still drops through and frees the head skb once.

Засегнати продукти

• Linux Linux: d6e882b89fdf80be0ab4f914ec10f75215e49495 преди 4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb; d6e882b89fdf80be0ab4f914ec10f75215e49495 преди db986098f30881fafcc752800aa3b13fd289c922; d6e882b89fdf80be0ab4f914ec10f75215e49495 преди de691dc3227b061c4d0beba9f0128fe1ff33dd68; d6e882b89fdf80be0ab4f914ec10f75215e49495 преди 6fb7b769d6ed6d1d2e02af4a80e57a2477f35086
• Linux Linux: 6.12; преди 6.12; 6.12.103 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; 7.2 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74545
• https://nvd.nist.gov/vuln/detail/CVE-2026-74545
• https://git.kernel.org/stable/c/4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb
• https://git.kernel.org/stable/c/db986098f30881fafcc752800aa3b13fd289c922
• https://git.kernel.org/stable/c/de691dc3227b061c4d0beba9f0128fe1ff33dd68
• https://git.kernel.org/stable/c/6fb7b769d6ed6d1d2e02af4a80e57a2477f35086