CVE - CVE-2024-26897

CVE-ID
CVE-2024-26897	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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()).
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905 URL:https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905 MISC:https://git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11 URL:https://git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11 MISC:https://git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b URL:https://git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b MISC:https://git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715 URL:https://git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715 MISC:https://git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298 URL:https://git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298 MISC:https://git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 URL:https://git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 MISC:https://git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90 URL:https://git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90
Assigning CNA
kernel.org
Date Record Created
20240219	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240219)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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