CVE-2026-68362
wifi: ath11k: fix NULL pointer dereference in ath11k_hal_srng_access_begin
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix NULL pointer dereference in ath11k_hal_srng_access_begin In ATH11K_QMI_EVENT_FW_READY, ATH11K_FLAG_REGISTERED is set unconditionally even when ath11k_core_qmi_firmware_ready() fails. This leaves the driver in an inconsistent state where initialization is considered complete although the firmware ready handling did not finish successfully. During the subsequent SSR, the driver enters the restart path based on this incorrect state and dereferences uninitialized srng members, resulting in a NULL pointer dereference. Call trace: ath11k_hal_srng_access_begin+0xc/0x60 [ath11k] (P) ath11k_ce_cleanup_pipes+0x17c/0x180 [ath11k] ath11k_core_restart+0x40/0x168 [ath11k] Fix this by: - skipping firmware_ready if ATH11K_FLAG_REGISTERED is already set - setting ATH11K_FLAG_REGISTERED only when firmware_ready succeeds - setting ATH11K_FLAG_QMI_FAIL and aborting the FW_READY handling on error Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.2.0.c2-00204-QCAMSLSWPLZ-1
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Skip firmware_ready if ATH11K_FLAG_REGISTERED is set.
- Set ATH11K_FLAG_REGISTERED only on firmware_ready success.
- Set ATH11K_FLAG_QMI_FAIL on error.
- Abort FW_READY handling on error.
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-2026-68362.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68362 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-2026-68362
weaknesses.
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-2026-68362 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68362 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
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e517e207300edcf7f3a8f6c45f9155c0e419ffb9', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'd6bba659ac30d862ee7bab92862cd6e514f07521', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e5394605f9a985cc3a8263e610ba84b33cbe7b0c', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': '4abb4e284d8897176e91d7a3168ee29ed876bb41', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e8d85672dd7e2523f774caafba8f858384e18df7', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath11k/qmi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.1', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath11k/qmi.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e517e207300edcf7f3a8f6c45f9155c0e419ffb9', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'd6bba659ac30d862ee7bab92862cd6e514f07521', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e5394605f9a985cc3a8263e610ba84b33cbe7b0c', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': '4abb4e284d8897176e91d7a3168ee29ed876bb41', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e8d85672dd7e2523f774caafba8f858384e18df7', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath11k/qmi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.1', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath11k/qmi.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e517e207300edcf7f3a8f6c45f9155c0e419ffb9', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'd6bba659ac30d862ee7bab92862cd6e514f07521', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e5394605f9a985cc3a8263e610ba84b33cbe7b0c', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': '4abb4e284d8897176e91d7a3168ee29ed876bb41', 'versionType': 'git'}, {'status': 'affected', 'version': '6fe62a8cec51c756159c71be35a16b2cc8cbd4c0', 'lessThan': 'e8d85672dd7e2523f774caafba8f858384e18df7', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/ath/ath11k/qmi.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.1'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.1', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/ath/ath11k/qmi.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix NULL pointer dereference in ath11k_hal_srng_access_begin In ATH11K_QMI_EVENT_FW_READY, ATH11K_FLAG_REGISTERED is set unconditionally even when ath11k_core_qmi_firmware_ready() fails. This leaves the driver in an inconsistent state where initialization is considered complete although the firmware ready handling did not finish successfully. During the subsequent SSR, the driver enters the restart path based on this incorrect state and dereferences uninitialized srng members, resulting in a NULL pointer dereference. Call trace: ath11k_hal_srng_access_begin+0xc/0x60 [ath11k] (P) ath11k_ce_cleanup_pipes+0x17c/0x180 [ath11k] ath11k_core_restart+0x40/0x168 [ath11k] Fix this by: - skipping firmware_ready if ATH11K_FLAG_REGISTERED is already set - setting ATH11K_FLAG_REGISTERED only when firmware_ready succeeds - setting ATH11K_FLAG_QMI_FAIL and aborting the FW_READY handling on error Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.2.0.c2-00204-QCAMSLSWPLZ-1 Added Reference https://git.kernel.org/stable/c/4abb4e284d8897176e91d7a3168ee29ed876bb41 Added Reference https://git.kernel.org/stable/c/d6bba659ac30d862ee7bab92862cd6e514f07521 Added Reference https://git.kernel.org/stable/c/e517e207300edcf7f3a8f6c45f9155c0e419ffb9 Added Reference https://git.kernel.org/stable/c/e5394605f9a985cc3a8263e610ba84b33cbe7b0c Added Reference https://git.kernel.org/stable/c/e8d85672dd7e2523f774caafba8f858384e18df7