{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68195","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-30T09:28:09.374Z","datePublished":"2026-08-10T12:00:13.627Z","dateUpdated":"2026-08-19T16:31:11.475Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-19T16:31:11.475Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses\n\nPKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7615_rx_check() and\nmt7615_queue_rx_skb() dispatch it to mt7615_mac_tx_free() on every bus.\nmt7615_mac_tx_free() cleans the DMA tx queues with\nmt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the\nmmio queue ops implement that callback; on the mt7663 USB and SDIO\nbuses it is NULL, so a TXRX_NOTIFY there calls a NULL pointer in the RX\nworker. Same defect as the mt7921 and mt7925 patches in this series.\n\nDrop the event on non-mmio buses via mt76_is_mmio(), as in\ncommit 5683e1488aa9 (\"wifi: mt76: connac: do not check WED status for\nnon-mmio devices\")."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7615/mac.c"],"versions":[{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"664f8bbc61e45e062679da512bf12f8f6fb26a1b","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"1a099d630b8667fa622662b85e35a0ef659fb343","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"a0b3e8d8726c3830102a18946c766c94c953c7f2","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"88c98ef247a3126fea9bbbda953a18a2f36c3ea7","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"ab4d213393e846baa6437497f94dda7553cbeda7","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"b2ab73b8123ce6cf2bc32634bfee4928676ffa66","status":"affected","versionType":"git"},{"version":"eb99cc95c3b6513b495c4839ac4917206705f657","lessThan":"39afc46c0243d10b7795e6e6cf4ae91f41732120","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7615/mac.c"],"versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","status":"unaffected","versionType":"semver"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/664f8bbc61e45e062679da512bf12f8f6fb26a1b"},{"url":"https://git.kernel.org/stable/c/1a099d630b8667fa622662b85e35a0ef659fb343"},{"url":"https://git.kernel.org/stable/c/a0b3e8d8726c3830102a18946c766c94c953c7f2"},{"url":"https://git.kernel.org/stable/c/f2a72f47c5fb4ba6887e85bbe809d7e5b318d9d5"},{"url":"https://git.kernel.org/stable/c/88c98ef247a3126fea9bbbda953a18a2f36c3ea7"},{"url":"https://git.kernel.org/stable/c/ab4d213393e846baa6437497f94dda7553cbeda7"},{"url":"https://git.kernel.org/stable/c/b2ab73b8123ce6cf2bc32634bfee4928676ffa66"},{"url":"https://git.kernel.org/stable/c/39afc46c0243d10b7795e6e6cf4ae91f41732120"}],"title":"wifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses","x_generator":{"engine":"bippy-1.2.0"}}}}