CVE-2025-38293

wifi: ath11k: fix node corruption in ar->arvifs list

State: Published
Severity: 8.8 High
Published: Jul 10, 2025
Updated: Oct 15, 2026
Reserved: Apr 16, 2025

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

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d5c65159f2895379e11ca13f62feabe93278985d to before 6c139015b597e570dd5962934e9f9a2f4cc8ef48Affected d5c65159f2895379e11ca13f62feabe93278985d to before f9507cf2dd0e1ed5028c0e8240da6fe5fd3110d3Affected d5c65159f2895379e11ca13f62feabe93278985d to before b0974ed82e6ad5ff246fd90a5b14f3e7be4f2924Affected d5c65159f2895379e11ca13f62feabe93278985d to before f50ba7e7b607f2d00618799312e7fdb76a1ff48eAffected d5c65159f2895379e11ca13f62feabe93278985d to before f5d77d0d41ea7a204d47288d0cf0404a52b5890eAffected d5c65159f2895379e11ca13f62feabe93278985d to before 6d6cb27fe146061f2512e904618f5e005bb7bb6aAffected d5c65159f2895379e11ca13f62feabe93278985d to before 31e98e277ae47f56632e4d663b1d4fd12ba33ea8Affected
LinuxLinux	5.6Affected before 5.6Not affected 5.10.239 through 5.10.Not affected 5.15.186 through 5.15.Not affected 6.1.142 through 6.1.Not affected 6.6.94 through 6.6.Not affected 6.12.34 through 6.12.Not affected 6.15.3 through 6.15.Not affected 6.16 and laterNot affected

Product

Versions

LinuxLinux

d5c65159f2895379e11ca13f62feabe93278985d to before 6c139015b597e570dd5962934e9f9a2f4cc8ef48Affected
d5c65159f2895379e11ca13f62feabe93278985d to before f9507cf2dd0e1ed5028c0e8240da6fe5fd3110d3Affected
d5c65159f2895379e11ca13f62feabe93278985d to before b0974ed82e6ad5ff246fd90a5b14f3e7be4f2924Affected
d5c65159f2895379e11ca13f62feabe93278985d to before f50ba7e7b607f2d00618799312e7fdb76a1ff48eAffected
d5c65159f2895379e11ca13f62feabe93278985d to before f5d77d0d41ea7a204d47288d0cf0404a52b5890eAffected
d5c65159f2895379e11ca13f62feabe93278985d to before 6d6cb27fe146061f2512e904618f5e005bb7bb6aAffected
d5c65159f2895379e11ca13f62feabe93278985d to before 31e98e277ae47f56632e4d663b1d4fd12ba33ea8Affected

LinuxLinux

5.6Affected
before 5.6Not affected
5.10.239 through 5.10.*Not affected
5.15.186 through 5.15.*Not affected
6.1.142 through 6.1.*Not affected
6.6.94 through 6.6.*Not affected
6.12.34 through 6.12.*Not affected
6.15.3 through 6.15.*Not affected
6.16 and laterNot affected

References

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