Riskcovery

CVE-2026-68307

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

State
Published
Severity
Not scored
Published
Aug 10, 2026
Updated
Aug 17, 2026
Reserved
Jul 30, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 14061994184df6bb89cba31657ee1db24480e92a to before d9326796a378f80be5f9fd60983c62fdccdf2f0bAffected
  • 14061994184df6bb89cba31657ee1db24480e92a to before 95b0cf02731c74e073ef8937f5526bd4442a0326Affected
  • 14061994184df6bb89cba31657ee1db24480e92a to before 89d03bda560d635f66d495f37b46a187fd4edfdfAffected
  • 14061994184df6bb89cba31657ee1db24480e92a to before bd8b2ec838184236c3fcbf738a926328836adf12Affected
LinuxLinux
  • 6.11Affected
  • before 6.11Not affected
  • 6.12.101 through 6.12.*Not affected
  • 6.18.42 through 6.18.*Not affected
  • 7.1.6 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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