In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type()
In ath12k_dp_tx_get_encap_type(), the arvif parameter is only used to
retrieve the ab pointer. In vdev delete sequence the arvif->ar could
become NULL and that would trigger kernel panic.
Since the caller ath12k_dp_tx() already has a valid ab pointer, pass it
directly to avoid panic and unnecessary dereferencing.
PC points to "ath12k_dp_tx+0x228/0x988 [ath12k]"
LR points to "ath12k_dp_tx+0xc8/0x988 [ath12k]".
The Backtrace obtained is as follows:
ath12k_dp_tx+0x228/0x988 [ath12k]
ath12k_mac_tx_check_max_limit+0x608/0x920 [ath12k]
ieee80211_process_measurement_req+0x320/0x348 [mac80211]
ieee80211_tx_dequeue+0x9ac/0x1518 [mac80211]
ieee80211_tx_dequeue+0xb14/0x1518 [mac80211]
ieee80211_tx_prepare_skb+0x224/0x254 [mac80211]
ieee80211_xmit+0xec/0x100 [mac80211]
__ieee80211_subif_start_xmit+0xc50/0xf40 [mac80211]
ieee80211_subif_start_xmit+0x2e8/0x308 [mac80211]
netdev_start_xmit+0x150/0x18c
dev_hard_start_xmit+0x74/0xc0
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
References
Configurations
Configuration 1 (hide)
|
History
26 Nov 2025, 18:02
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-476 | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/05062834350f0bf7ad1abcebc2807220e90220eb - Patch | |
| References | () https://git.kernel.org/stable/c/b508f370f88f277c95e2bd3bc47217a96d668cee - Patch | |
| References | () https://git.kernel.org/stable/c/ee4f8e7fa578f9f28cef5f409677db25f4f83d7e - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Information
Published : 2025-08-19 17:15
Updated : 2025-11-26 18:02
NVD link : CVE-2025-38605
Mitre link : CVE-2025-38605
CVE.ORG link : CVE-2025-38605
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference