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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-26897
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-17 11:15:10 UTC
Updated2026-05-12 12:16:24 UTC
DescriptionIn 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()).

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-362

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 78c8397132dd4735ac6a7b5a651302f0b9f264ad 1bc5461a21c56a36e2a7d81e152b90ce019a3905 git Not specified
CNA Linux Linux affected 735aefae7b68025cd04c482a940c0f6fc6797a63 f8ff4b4df71e87f609be0cc37d92e918107f9b90 git Not specified
CNA Linux Linux affected 8b3046abc99eefe11438090bcc4ec3a3994b55d0 74d0639261dd795dce958d1b14815bdcbb48a715 git Not specified
CNA Linux Linux affected 8b3046abc99eefe11438090bcc4ec3a3994b55d0 a015fbf698c8957aa5fbeefc5c59dd2cf3107298 git Not specified
CNA Linux Linux affected 8b3046abc99eefe11438090bcc4ec3a3994b55d0 ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 git Not specified
CNA Linux Linux affected 8b3046abc99eefe11438090bcc4ec3a3994b55d0 4afa0246656d5680c8a4c3fb37ba6570c4ab819b git Not specified
CNA Linux Linux affected 8b3046abc99eefe11438090bcc4ec3a3994b55d0 24355fcb0d4cbcb6ddda262596558e8cfba70f11 git Not specified
CNA Linux Linux affected 7bbc1a50a7963f14048f0e54b0b73159f86d4ea3 git Not specified
CNA Linux Linux affected 5.17 Not specified
CNA Linux Linux unaffected 5.17 semver Not specified
CNA Linux Linux unaffected 5.10.214 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.153 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.83 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.23 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.11 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8.2 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Third Party Advisory
git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
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