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CVE-2026-98328— wifi: mac80211: add HE 6 GHz capability in the scan elems len

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.

在 Linux 内核中，已修复以下漏洞： wifi: mac80211: 在扫描元素长度中添加 HE 6 GHz 能力字段 如果支持 6 GHz，则 HE 6 GHz Band Capability（6 GHz 频段能力）元素会出现在每个频段的探测请求（probe request）中，因此需要将其大小添加到 scan_ies_len 中。 否则，构建探测请求元素可能会失败，从而触发 __ieee80211_start_scan() 中的 WARN_ON 警告。

AI Predicted 5.3 Difficulty: Easy EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77< db19d5414227d86cee77a000607a6710d7f36853 affected
2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77< be7bfdea1ec9b672a80c736bd6ed932e1adebef8 affected
2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77< 8659bd6c4c852096b6621086d1ea38eed84b454a affected
2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77< ad5bd0f6a0c337a80c141ea8e6c7a1d9c145be79 affected
2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77< 9d83c08dcce808c732988a5291e3ef4f59d09edb affected
2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77< cd54bf333f5631d3630bab0a832e9ae648f73515 affected
5.8 affected
< 5.8 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-98328

Vulnerability Information
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Vulnerability Title
wifi: mac80211: add HE 6 GHz capability in the scan elems len
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: add HE 6 GHz capability in the scan elems len The HE 6 GHz Band Capability element is in the probe request for every band if 6 GHz is supported, so add the size to scan_ies_len. Otherwise, building probe request elements can fail, triggering the WARN_ON in __ieee80211_start_scan().
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 2ad2274c58ee2dcaf9ccde5c63ff30f59b138f77 ~ db19d5414227d86cee77a000607a6710d7f36853 -
Linux Linux 5.8 -

II. Public POCs for CVE-2026-98328

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III. Intelligence Information for CVE-2026-98328

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Patches & Fixes for CVE-2026-98328 (6)

Same Patch Batch · Linux · 2026-10-06 · 208 CVEs total

CVE-2026-98323 9.8 CRITICAL RDMA/siw: Bound fragmented header copies by the remaining length
CVE-2026-98365 9.8 CRITICAL RDMA/rxe: Fix integer overflow in mr_check_range() leading to OOB access
CVE-2026-98282 8.8 HIGH powerpc/iommu: Fix the overflow validation in iommu_tce_check_ioba
CVE-2026-98283 8.8 HIGH KVM: PPC: Book3S HV: fix use-after-free in kvmhv_emulate_tlbie_all_lpid()
CVE-2026-98339 8.8 HIGH wifi: cfg80211: don't filter by BSS type when removing stale entries
CVE-2026-98171 8.8 HIGH smb: client: fix next_buffer UAF and NextCommand bounds in compound PDUs
CVE-2026-98261 8.1 HIGH cifs: Fix server use-after-free in cifs_chan_skip_or_disable()
CVE-2026-98357 8.1 HIGH IB/isert: wait for deferred control PDU completions before releasing the connection
CVE-2026-98239 8.1 HIGH net: lan743x: fix RX checksum use-after-free
CVE-2026-98341 7.8 HIGH wifi: cfg80211: don't free driver-owned scan requests
CVE-2026-98281 7.8 HIGH futex: Also allocate private hash on vfork()
CVE-2026-98324 7.8 HIGH dmaengine: pxa: fix double counting of the hw descriptors
CVE-2026-98320 7.8 HIGH netfilter: flowtable: hold reference on ct until flow is released
CVE-2026-98228 7.8 HIGH mips: select CONFIG_WEAK_REORDERING_BEYOND_LLSC from CONFIG_EYEQ
CVE-2026-98229 7.8 HIGH xfrm: save input state data before secpath resets
CVE-2026-98318 7.8 HIGH smb: client: validate absolute native symlink targets before NT fixups
CVE-2026-98315 7.8 HIGH ntfs: protect runlist updates with the runlist lock
CVE-2026-98260 7.8 HIGH exec: Cleanup POSIX timers right after de_thread()
CVE-2026-98256 7.8 HIGH signal: Prevent exec() race
CVE-2026-98258 7.8 HIGH posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list

Showing top 20 of 208 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98328

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