0.0
NA
CVE-2024-26897
Apache Wireless Fidelity Kernel NULL Pointer Dereference
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()).

INFO

Published Date :

April 17, 2024, 11:15 a.m.

Last Modified :

June 25, 2024, 11:15 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Affected Products

The following products are affected by CVE-2024-26897 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-26897.

URL Resource
https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905
https://git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11
https://git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b
https://git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715
https://git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298
https://git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2
https://git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-26897 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-26897 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 25, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 17, 2024

    Action Type Old Value New Value
    Added 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()).
    Added Reference kernel.org https://git.kernel.org/stable/c/1bc5461a21c56a36e2a7d81e152b90ce019a3905 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f8ff4b4df71e87f609be0cc37d92e918107f9b90 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/74d0639261dd795dce958d1b14815bdcbb48a715 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/a015fbf698c8957aa5fbeefc5c59dd2cf3107298 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ac90e22e735bac44f74b5161fb096fbeb0ff8bc2 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/4afa0246656d5680c8a4c3fb37ba6570c4ab819b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/24355fcb0d4cbcb6ddda262596558e8cfba70f11 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-26897 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-26897 weaknesses.

NONE - Vulnerability Scoring System
: