CVE-2025-38293
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-10

Last updated on: 2025-12-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix node corruption in ar->arvifs list In current WLAN recovery code flow, ath11k_core_halt() only reinitializes the "arvifs" list head. This will cause the list node immediately following the list head to become an invalid list node. Because the prev of that node still points to the list head "arvifs", but the next of the list head "arvifs" no longer points to that list node. When a WLAN recovery occurs during the execution of a vif removal, and it happens before the spin_lock_bh(&ar->data_lock) in ath11k_mac_op_remove_interface(), list_del() will detect the previously mentioned situation, thereby triggering a kernel panic. The fix is to remove and reinitialize all vif list nodes from the list head "arvifs" during WLAN halt. The reinitialization is to make the list nodes valid, ensuring that the list_del() in ath11k_mac_op_remove_interface() can execute normally. Call trace: __list_del_entry_valid_or_report+0xb8/0xd0 ath11k_mac_op_remove_interface+0xb0/0x27c [ath11k] drv_remove_interface+0x48/0x194 [mac80211] ieee80211_do_stop+0x6e0/0x844 [mac80211] ieee80211_stop+0x44/0x17c [mac80211] __dev_close_many+0xac/0x150 __dev_change_flags+0x194/0x234 dev_change_flags+0x24/0x6c devinet_ioctl+0x3a0/0x670 inet_ioctl+0x200/0x248 sock_do_ioctl+0x60/0x118 sock_ioctl+0x274/0x35c __arm64_sys_ioctl+0xac/0xf0 invoke_syscall+0x48/0x114 ... Tested-on: QCA6698AQ hw2.1 PCI WLAN.HSP.1.1-04591-QCAHSPSWPL_V1_V2_SILICONZ_IOE-1
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Meta Information
Published
2025-07-10
Last Modified
2025-12-18
Generated
2026-05-27
AI Q&A
2025-07-10
EPSS Evaluated
2026-05-25
NVD
CVE-2025-38293
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.11 (inc) to 5.15.186 (inc)
debian debian_linux 11.0
linux mac80211 *
qualcomm qca6698aq *
linux kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a flaw in the Linux kernel's ath11k WiFi driver where the 'arvifs' list, which manages virtual interfaces, becomes corrupted during WLAN recovery. Specifically, the list head is reinitialized without properly updating the nodes following it, causing invalid list nodes. When a WLAN recovery happens during the removal of a virtual interface, this corruption leads to a kernel panic due to invalid list operations.


How can this vulnerability impact me? :

The vulnerability can cause the Linux kernel to panic (crash) during WLAN recovery when a virtual interface is being removed. This results in system instability and potential denial of service, as the affected system may become unresponsive or require a reboot.


What immediate steps should I take to mitigate this vulnerability?

The vulnerability is fixed by updating the Linux kernel to a version where the ath11k driver properly reinitializes all vif list nodes during WLAN halt to prevent node corruption and kernel panic. Therefore, the immediate mitigation step is to apply the kernel update or patch that includes this fix.


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