{"id":"CVE-2026-68307","state":"PUBLISHED","title":"wifi: mt76: mt7925: fix crash in reset link replay","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: fix crash in reset link replay\n\nDuring reset recovery, mt7925_vif_connect_iter() replays firmware state\nfor links tracked in mvif->valid_links. After MLO link changes or MCU\ntimeout recovery, the driver bitmap can temporarily contain a link whose\nmac80211 bss_conf has already gone away.\n\nThis can pass a NULL bss_conf to mt76_connac_mcu_uni_add_dev(), matching\nthe crash where x1, the second argument, is NULL:\n\npc : mt76_connac_mcu_uni_add_dev+0x8c/0x1f8 [mt76_connac_lib]\nlr : mt7925_vif_connect_iter+0x9c/0x168 [mt7925_common]\nx2 : ffffff80a77f6018 x1 : 0000000000000000 x0 : ffffff8099402080\nCall trace:\nmt76_connac_mcu_uni_add_dev+0x8c/0x1f8 [mt76_connac_lib]\nmt7925_vif_connect_iter+0x9c/0x168 [mt7925_common]\nmt7925_mac_reset_work+0x264/0x2f8 [mt7925_common]\n\nSkip missing bss_conf entries before replaying the link. Non-MLO AP/STA\nreset replay is unchanged because the helper still returns &vif->bss_conf\nfor the legacy link.","publishedAt":"2026-08-10T12:02:41.904Z","updatedAt":"2026-08-17T05:02:59.698Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"d9326796a378f80be5f9fd60983c62fdccdf2f0b","versionType":"git"},{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"95b0cf02731c74e073ef8937f5526bd4442a0326","versionType":"git"},{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"89d03bda560d635f66d495f37b46a187fd4edfdf","versionType":"git"},{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"bd8b2ec838184236c3fcbf738a926328836adf12","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7925/mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7925/mac.c"]}],"references":["https://git.kernel.org/stable/c/d9326796a378f80be5f9fd60983c62fdccdf2f0b","https://git.kernel.org/stable/c/95b0cf02731c74e073ef8937f5526bd4442a0326","https://git.kernel.org/stable/c/89d03bda560d635f66d495f37b46a187fd4edfdf","https://git.kernel.org/stable/c/bd8b2ec838184236c3fcbf738a926328836adf12"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68307.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68307","state":"PUBLISHED","datePublished":"2026-08-10T12:02:41.904Z","dateUpdated":"2026-08-17T05:02:59.698Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.381Z"},"containers":{"cna":{"title":"wifi: mt76: mt7925: fix crash in reset link replay","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7925: fix crash in reset link replay\n\nDuring reset recovery, mt7925_vif_connect_iter() replays firmware state\nfor links tracked in mvif->valid_links. After MLO link changes or MCU\ntimeout recovery, the driver bitmap can temporarily contain a link whose\nmac80211 bss_conf has already gone away.\n\nThis can pass a NULL bss_conf to mt76_connac_mcu_uni_add_dev(), matching\nthe crash where x1, the second argument, is NULL:\n\npc : mt76_connac_mcu_uni_add_dev+0x8c/0x1f8 [mt76_connac_lib]\nlr : mt7925_vif_connect_iter+0x9c/0x168 [mt7925_common]\nx2 : ffffff80a77f6018 x1 : 0000000000000000 x0 : ffffff8099402080\nCall trace:\nmt76_connac_mcu_uni_add_dev+0x8c/0x1f8 [mt76_connac_lib]\nmt7925_vif_connect_iter+0x9c/0x168 [mt7925_common]\nmt7925_mac_reset_work+0x264/0x2f8 [mt7925_common]\n\nSkip missing bss_conf entries before replaying the link. Non-MLO AP/STA\nreset replay is unchanged because the helper still returns &vif->bss_conf\nfor the legacy link."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"d9326796a378f80be5f9fd60983c62fdccdf2f0b","versionType":"git"},{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"95b0cf02731c74e073ef8937f5526bd4442a0326","versionType":"git"},{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"89d03bda560d635f66d495f37b46a187fd4edfdf","versionType":"git"},{"version":"14061994184df6bb89cba31657ee1db24480e92a","status":"affected","lessThan":"bd8b2ec838184236c3fcbf738a926328836adf12","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7925/mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7925/mac.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d9326796a378f80be5f9fd60983c62fdccdf2f0b"},{"url":"https://git.kernel.org/stable/c/95b0cf02731c74e073ef8937f5526bd4442a0326"},{"url":"https://git.kernel.org/stable/c/89d03bda560d635f66d495f37b46a187fd4edfdf"},{"url":"https://git.kernel.org/stable/c/bd8b2ec838184236c3fcbf738a926328836adf12"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:02:59.698Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}