CVE-2026-68195: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses PKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7615_rx_check() and mt7615_queue_rx_skb() dispatch it to mt7615_mac_tx_free() on every bus. mt7615_mac_tx_free() cleans the DMA tx queues with mt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the mmio queue ops implement that callback; on the mt7663 USB and SDIO buses it is NULL, so a TXRX_NOTIFY there calls a NULL pointer in the RX worker. Same defect as the mt7921 and mt7925 patches in this series. Drop the event on non-mmio buses via mt76_is_mmio(), as in commit 5683e1488aa9 ("wifi: mt76: connac: do not check WED status for non-mmio devices").

Засегнати продукти

• Linux Linux: eb99cc95c3b6513b495c4839ac4917206705f657 преди 664f8bbc61e45e062679da512bf12f8f6fb26a1b; eb99cc95c3b6513b495c4839ac4917206705f657 преди 1a099d630b8667fa622662b85e35a0ef659fb343; eb99cc95c3b6513b495c4839ac4917206705f657 преди a0b3e8d8726c3830102a18946c766c94c953c7f2; eb99cc95c3b6513b495c4839ac4917206705f657 преди f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5; eb99cc95c3b6513b495c4839ac4917206705f657 преди 88c98ef247a3126fea9bbbda953a18a2f36c3ea7; eb99cc95c3b6513b495c4839ac4917206705f657 преди ab4d213393e846baa6437497f94dda7553cbeda7; eb99cc95c3b6513b495c4839ac4917206705f657 преди b2ab73b8123ce6cf2bc32634bfee4928676ffa66; eb99cc95c3b6513b495c4839ac4917206705f657 преди 39afc46c0243d10b7795e6e6cf4ae91f41732120
• Linux Linux: 5.8; преди 5.8; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 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-2026-68195
• https://nvd.nist.gov/vuln/detail/CVE-2026-68195
• https://git.kernel.org/stable/c/664f8bbc61e45e062679da512bf12f8f6fb26a1b
• https://git.kernel.org/stable/c/1a099d630b8667fa622662b85e35a0ef659fb343
• https://git.kernel.org/stable/c/a0b3e8d8726c3830102a18946c766c94c953c7f2
• https://git.kernel.org/stable/c/f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5
• https://git.kernel.org/stable/c/88c98ef247a3126fea9bbbda953a18a2f36c3ea7
• https://git.kernel.org/stable/c/ab4d213393e846baa6437497f94dda7553cbeda7
• https://git.kernel.org/stable/c/b2ab73b8123ce6cf2bc32634bfee4928676ffa66
• https://git.kernel.org/stable/c/39afc46c0243d10b7795e6e6cf4ae91f41732120