wifi: mt76: mt7925: fix crash in reset link replay

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68307
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:20 UTC
Updated2026-08-10 13:20:20 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix crash in reset link replay During reset recovery, mt7925_vif_connect_iter() replays firmware state for links tracked in mvif->valid_links. After MLO link changes or MCU timeout recovery, the driver bitmap can temporarily contain a link whose mac80211 bss_conf has already gone away. This can pass a NULL bss_conf to mt76_connac_mcu_uni_add_dev(), matching the crash where x1, the second argument, is NULL: pc : mt76_connac_mcu_uni_add_dev+0x8c/0x1f8 [mt76_connac_lib] lr : mt7925_vif_connect_iter+0x9c/0x168 [mt7925_common] x2 : ffffff80a77f6018 x1 : 0000000000000000 x0 : ffffff8099402080 Call trace: mt76_connac_mcu_uni_add_dev+0x8c/0x1f8 [mt76_connac_lib] mt7925_vif_connect_iter+0x9c/0x168 [mt7925_common] mt7925_mac_reset_work+0x264/0x2f8 [mt7925_common] Skip missing bss_conf entries before replaying the link. Non-MLO AP/STA reset replay is unchanged because the helper still returns &vif->bss_conf for the legacy link.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 14061994184df6bb89cba31657ee1db24480e92a d9326796a378f80be5f9fd60983c62fdccdf2f0b git Not specified
CNA Linux Linux affected 14061994184df6bb89cba31657ee1db24480e92a 95b0cf02731c74e073ef8937f5526bd4442a0326 git Not specified
CNA Linux Linux affected 14061994184df6bb89cba31657ee1db24480e92a 89d03bda560d635f66d495f37b46a187fd4edfdf git Not specified
CNA Linux Linux affected 14061994184df6bb89cba31657ee1db24480e92a bd8b2ec838184236c3fcbf738a926328836adf12 git Not specified
CNA Linux Linux affected 6.11 Not specified
CNA Linux Linux unaffected 6.11 semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/d9326796a378f80be5f9fd60983c62fdccdf2f0b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/89d03bda560d635f66d495f37b46a187fd4edfdf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bd8b2ec838184236c3fcbf738a926328836adf12 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/95b0cf02731c74e073ef8937f5526bd4442a0326 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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