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CVE-2026-98190— wifi: wilc1000: fix out-of-bounds read in P2P public action frames

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: wilc1000: 修复 P2P 公开动作帧中的越界读取问题 和 函数在 返回真值后开始解析帧。该辅助函数仅验证帧长度是否足以容纳动作类别字段，即 所指定的 25 字节。然而，这两个函数随后会读取 P2P 公开动作帧头，直至偏移量为 30 的 字段，并将 （其中 为 ，即 32）传递给 。 长度为 25 至 31 字节的公开动作帧可通过上述检查，但该长度小于 32 字节的帧头，因此会导致 的读取越界。由于长度类型为无符号整数， 会发生下溢，产生一个接近 4 Gi

AI Predicted 8.4 Difficulty: Easy EPSS 0.18% · P7

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 4fb8b5aa2a1126783ae00bae544d6f3c519408ef< e98ad9f4c59f2e836f8d971b57763a4277680422 affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< f0c46f8111a479b97b8ab17747c528cade6257f1 affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< a5b827dad8a3037cef04d0240d1c2acb1557101e affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< 491df93b10d76aebaf6aa4bb05a6ba897f4fccfb affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< cc2ee642ebeac8699b671ddb6d5955a785e5ff43 affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< 68b786691ce24c5c94e28811db243e573c50f9c1 affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< 6fbe76eb2796d2aee45cc6a2dd16e85d3cc96304 affected
4fb8b5aa2a1126783ae00bae544d6f3c519408ef< ba6cb7c0868a412c2eb68e8efd5aa38bfb258a14 affected
… +10 more rows
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I. Basic Information for CVE-2026-98190

Vulnerability Information
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Vulnerability Title
wifi: wilc1000: fix out-of-bounds read in P2P public action frames
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix out-of-bounds read in P2P public action frames wilc_wfi_p2p_rx() and mgmt_tx() start parsing a frame once ieee80211_is_public_action() returns true. That helper only verifies the frame is long enough for the action category field, that is offsetofend(struct ieee80211_mgmt, u.action.category), 25 bytes. Both functions then read the P2P public action header up to oui_subtype at offset 30 and pass "size - ie_offset" to cfg80211_find_vendor_ie(), where ie_offset is offsetof(struct ieee80211_mgmt, u) + sizeof(*d), i.e. 32. A public action frame of 25 to 31 bytes passes the check but is shorter than that 32 byte header, so oui_subtype can be read out of bounds, and because the length is unsigned, "size - ie_offset" underflows to a value close to 4 GiB. cfg80211_find_vendor_ie() takes an unsigned int length, so even the size_t subtraction in mgmt_tx() is truncated to the same value. It then walks far past the buffer searching for a vendor element until it reaches unmapped memory. In the receive path the frame arrives over the air and needs no association, so a nearby unauthenticated device can crash the host while it is in P2P listen. Reject frames shorter than the P2P public action header in both paths before dereferencing it.
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 4fb8b5aa2a1126783ae00bae544d6f3c519408ef ~ e98ad9f4c59f2e836f8d971b57763a4277680422 -
Linux Linux 5.7 -

II. Public POCs for CVE-2026-98190

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III. Intelligence Information for CVE-2026-98190

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Patches & Fixes for CVE-2026-98190 (8)

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-2026-98324 7.8 HIGH dmaengine: pxa: fix double counting of the hw descriptors
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-2026-98320 7.8 HIGH netfilter: flowtable: hold reference on ct until flow is released
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
CVE-2026-98254 7.8 HIGH swiotlb: use the adjusted address for the highmem page lookup

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-2026-98190

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