Description
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").
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
eb99cc95c3b6513b495c4839ac4917206705f657 to < 664f8bbc61e45e062679da512bf12f8f6fb26a1baffectedeb99cc95c3b6513b495c4839ac4917206705f657 to < 1a099d630b8667fa622662b85e35a0ef659fb343affectedeb99cc95c3b6513b495c4839ac4917206705f657 to < a0b3e8d8726c3830102a18946c766c94c953c7f2affectedeb99cc95c3b6513b495c4839ac4917206705f657 to < f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5affectedeb99cc95c3b6513b495c4839ac4917206705f657 to < 88c98ef247a3126fea9bbbda953a18a2f36c3ea7affectedeb99cc95c3b6513b495c4839ac4917206705f657 to < ab4d213393e846baa6437497f94dda7553cbeda7affectedeb99cc95c3b6513b495c4839ac4917206705f657 to < b2ab73b8123ce6cf2bc32634bfee4928676ffa66affectedeb99cc95c3b6513b495c4839ac4917206705f657 to < 39afc46c0243d10b7795e6e6cf4ae91f41732120affected
Linux Linux
Default version status: affected
5.8affected0 to < 5.8unaffected5.10.265 to ≤ 5.10.*unaffected5.15.216 to ≤ 5.15.*unaffected6.1.183 to ≤ 6.1.*unaffected6.6.148 to ≤ 6.6.*unaffected6.12.101 to ≤ 6.12.*unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- 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 ↗