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CVE Record

CVE-2025-38293: wifi: ath11k: fix node corruption in ar->arvifs list

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

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A flaw in the Linux ath11k Wi-Fi driver can corrupt an internal interface list when wireless recovery overlaps interface removal. The resulting consistency check can panic the kernel, abruptly disrupting the affected device or service. The supplied evidence demonstrates a crash condition, but does not establish practical confidentiality or integrity impact despite the 8.8 CVSS score.

Executive priority

Treat this as a high-priority availability issue for ath11k-equipped Linux endpoints, appliances, and operational systems. Patch promptly where crashes would interrupt critical service. Broader emergency action is not supported because the bundle provides no evidence of active exploitation and does not establish impact beyond kernel panic.

Technical view

During ath11k WLAN recovery, ath11k_core_halt() reinitializes only the ar->arvifs list head, leaving adjacent nodes inconsistent. If interface removal reaches list_del() after this recovery state is created, kernel list validation can trigger a panic. The upstream fix removes and reinitializes every virtual-interface node during halt.

Likely exposure

Exposure is limited to Linux systems using the ath11k driver and vulnerable kernel code, with the triggering race requiring WLAN recovery during virtual-interface removal. The source lists several affected kernel versions, but its version formatting is ambiguous. The reported test platform was QCA6698AQ hw2.1; applicability to other ath11k hardware is not established here.

Exploitation context

The supplied record does not report active exploitation, and it is not marked as CISA KEV. No public exploit evidence is included. Triggering requires an adjacent WLAN condition and a specific timing overlap, so real-world exploitability cannot be determined from this bundle alone.

Researcher notes

The documented root cause is stale bidirectional-list linkage following partial list reinitialization. The failure is a race between WLAN recovery and ath11k_mac_op_remove_interface(). Stable-kernel commits are supplied for multiple branches. Researchers should avoid generalizing beyond ath11k or the tested QCA6698AQ platform without additional evidence.

Mitigation direction

  • Install a vendor-supported kernel containing the applicable upstream ath11k correction.
  • Review Linux distribution advisories to identify the corrected package for each deployed kernel.
  • Prioritize Wi-Fi-dependent systems where an unexpected kernel panic would materially disrupt operations.
  • If immediate patching is unavailable, consult vendor guidance for supported temporary mitigations.

Validation and detection

  • Inventory systems loading ath11k and identify their exact kernel builds and wireless hardware.
  • Compare deployed kernel packages with vendor advisories and the referenced stable-kernel fixes.
  • Review kernel logs for ath11k recovery, list corruption, or the documented remove-interface panic trace.
  • After updating, confirm the running kernel package includes the applicable backported correction.
Prepared
Confidence
medium
Sources
11

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2025-38293 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
10Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.1HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

8.8High
CVSS 3.1 vector shape for CVE-2025-38293Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d, d5c65159f2895379e11ca13f62feabe93278985d, d5c65159f2895379e11ca13f62feabe93278985d, d5c65159f2895379e11ca13f62feabe93278985d, d5c65159f2895379e11ca13f62feabe93278985d, d5c65159f2895379e11ca13f62feabe93278985d, d5c65159f2895379e11ca13f62feabe93278985dunaffected
LinuxLinux5.6, 0, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3, 6.16affected
Weakness

CWE details

No CWE listed

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