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CVE-2026-64155— wifi: ath11k: fix error path leaks in some WMI WOW calls

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 5.11版本存在安全漏洞，该漏洞源于ath11k WMI WOW调用中未检查ath11k_wmi_cmd_send返回值，导致错误路径中未释放skb，可能造成资源泄露。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.12% · P2

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 79802b13a492d0fdeb922e98628e5ff1a8b74026< d6c7b8d0dc22c0a8743435db8f42d98524b70df3 affected
79802b13a492d0fdeb922e98628e5ff1a8b74026< cd43d587dd333517c806cd24696e6e1a26b9951e affected
79802b13a492d0fdeb922e98628e5ff1a8b74026< 3d675896ea03aca631852a2a7e91e6cb8f664967 affected
79802b13a492d0fdeb922e98628e5ff1a8b74026< 008955b1348452de25bc19d6e0f0f673d4cb9a3c affected
79802b13a492d0fdeb922e98628e5ff1a8b74026< acde4692afcdaea6de3e2996ddfaeaa7ae6b0130 affected
79802b13a492d0fdeb922e98628e5ff1a8b74026< d618d322b95c80d5ad7091f35a7193e4050dcc27 affected
79802b13a492d0fdeb922e98628e5ff1a8b74026< 55dda532bbc261aef495e403c8900c5e2ab5fa34 affected
5.11 affected
… +8 more rows
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I. Basic Information for CVE-2026-64155

Vulnerability Information
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Vulnerability Title
wifi: ath11k: fix error path leaks in some WMI WOW calls
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix error path leaks in some WMI WOW calls Fix two instances where we used to directly return the result of ath11k_wmi_cmd_send(...). Because we did not check the return value, we also did not free the skb in the error path.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 5.11版本存在安全漏洞，该漏洞源于ath11k WMI WOW调用中未检查ath11k_wmi_cmd_send返回值，导致错误路径中未释放skb，可能造成资源泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 79802b13a492d0fdeb922e98628e5ff1a8b74026 ~ d6c7b8d0dc22c0a8743435db8f42d98524b70df3 -
Linux Linux 5.11 -

II. Public POCs for CVE-2026-64155

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III. Intelligence Information for CVE-2026-64155

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Patches & Fixes for CVE-2026-64155 (5)

Same Patch Batch · Linux · 2026-07-19 · 429 CVEs total

CVE-2026-63795 10.0 CRITICAL 9p: avoid putting oldfid in p9_client_walk() error path
CVE-2026-63887 9.8 CRITICAL scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf
CVE-2026-63994 9.8 CRITICAL tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]()
CVE-2026-64035 9.8 CRITICAL igc: set tx buffer type for SMD frames
CVE-2026-64142 9.8 CRITICAL ksmbd: close durable scavenger races against m_fp_list lookups
CVE-2026-63993 9.8 CRITICAL vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu()
CVE-2026-53399 9.8 CRITICAL nfsd: release layout stid on setlease failure
CVE-2026-53398 9.8 CRITICAL NFSD: Fix SECINFO_NO_NAME decode error cleanup
CVE-2026-63825 9.8 CRITICAL gcov: use atomic counter updates to fix concurrent access crashes
CVE-2026-64025 9.8 CRITICAL bpf, skmsg: fix verdict sk_data_ready racing with ktls rx
CVE-2026-64033 9.8 CRITICAL RDMA/rtrs: Fix use-after-free in path file creation cleanup
CVE-2026-63886 9.8 CRITICAL scsi: target: iscsi: Validate CHAP_R length before base64 decode
CVE-2026-64125 9.8 CRITICAL net: bcmgenet: keep RBUF EEE/PM disabled
CVE-2026-64091 9.8 CRITICAL batman-adv: tt: fix TOCTOU race for reported vlans
CVE-2026-63808 9.8 CRITICAL exfat: fix potential use-after-free in exfat_find_dir_entry()
CVE-2026-63978 9.8 CRITICAL net/handshake: Drain pending requests at net namespace exit
CVE-2026-63979 9.8 CRITICAL net/handshake: hand off the pinned file reference to accept_doit
CVE-2026-64132 9.8 CRITICAL ipv6: ioam: refresh hdr pointer before ioam6_event()
CVE-2026-64136 9.8 CRITICAL smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()
CVE-2026-63800 9.8 CRITICAL pNFS: Fix use-after-free in pnfs_update_layout()

Showing top 20 of 429 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64155

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