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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-26897

wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete The ath9k_wmi_event_tasklet() used in ath9k_htc assumes that all the data structures have been fully initialised by the time it runs. However, because of the order in which things are initialised, this is not guaranteed to be the case, because the device is exposed to the USB subsystem before the ath9k driver initialisation is completed. We already committed a partial fix for this in commit: 8b3046abc99e ("ath9k_htc: fix NULL pointer dereference at ath9k_htc_tx_get_packet()") However, that commit only aborted the WMI_TXSTATUS_EVENTID command in the event tasklet, pairing it with an "initialisation complete" bit in the TX struct. It seems syzbot managed to trigger the race for one of the other commands as well, so let's just move the existing synchronisation bit to cover the whole tasklet (setting it at the end of ath9k_htc_probe_device() instead of inside ath9k_tx_init()).

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

  • 78c8397132dd4735ac6a7b5a651302f0b9f264ad to < 1bc5461a21c56a36e2a7d81e152b90ce019a3905affected
  • 735aefae7b68025cd04c482a940c0f6fc6797a63 to < f8ff4b4df71e87f609be0cc37d92e918107f9b90affected
  • 8b3046abc99eefe11438090bcc4ec3a3994b55d0 to < 74d0639261dd795dce958d1b14815bdcbb48a715affected
  • 8b3046abc99eefe11438090bcc4ec3a3994b55d0 to < a015fbf698c8957aa5fbeefc5c59dd2cf3107298affected
  • 8b3046abc99eefe11438090bcc4ec3a3994b55d0 to < ac90e22e735bac44f74b5161fb096fbeb0ff8bc2affected
  • 8b3046abc99eefe11438090bcc4ec3a3994b55d0 to < 4afa0246656d5680c8a4c3fb37ba6570c4ab819baffected
  • 8b3046abc99eefe11438090bcc4ec3a3994b55d0 to < 24355fcb0d4cbcb6ddda262596558e8cfba70f11affected
  • 7bbc1a50a7963f14048f0e54b0b73159f86d4ea3affected
  • 5.10.136 to < 5.10.214affected
  • 5.15.17 to < 5.15.153affected
  • 5.16.3 to < 5.17affected

Linux Linux

Default version status: affected

  • 5.17affected
  • 0 to < 5.17unaffected
  • 5.10.214 to ≤ 5.10.*unaffected
  • 5.15.153 to ≤ 5.15.*unaffected
  • 6.1.83 to ≤ 6.1.*unaffected
  • 6.6.23 to ≤ 6.6.*unaffected
  • 6.7.11 to ≤ 6.7.*unaffected
  • 6.8.2 to ≤ 6.8.*unaffected
  • 6.9 to ≤ *unaffected

References