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CVE-2026-98188— wifi: p54: validate curve data length in the calibration curve converters

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，以下漏洞已得到修复： wifi: p54: 在校准曲线转换函数中验证曲线数据的长度 函数 和 从设备提供的 EEPROM 条目中读取校准曲线数据，这些数据使用同一 EEPROM 条目中声明的“通道数”和“每通道点数”进行计算。然而，这些计数值直接从条目中未经校验地获取。如果某个条目声明的数据量大于实际包含的数据量，就会导致越界读取，超出 EEPROM 缓冲区范围（已通过 KASAN 复现转换循环中的越界读取行为进行验证）。而兄弟转换函数 和 已经对其计数值与条目长度进行了有效性校验；此处的逻

AI Predicted 5.3 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 81084c967c18233b19799a0c3352ebac043f31e2 affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 41cdf14bf4b52fbe4673a172c2a6ad756cb08111 affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 03d313e3dfb49a44c10a5c423452967694fb85e2 affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 42f4b03971f9d6329c4cbd1ea5155210d16ab65b affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 4d767d6f8753db22bfc14c2724bd9cee677ffb03 affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 3bdcc4d61212b001b8752d80036509b4974ce16c affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< b0c906107150b16925ee66da09127259864c7f36 affected
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< ce858fa6b8a214dee5adb82358885fa024cdd887 affected
… +10 more rows
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I. Basic Information for CVE-2026-98188

Vulnerability Information
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Vulnerability Title
wifi: p54: validate curve data length in the calibration curve converters
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: p54: validate curve data length in the calibration curve converters p54_convert_rev0() and p54_convert_rev1() read calibration curve data from the device-supplied EEPROM entry using channel and points-per-channel counts taken verbatim from that same entry, so an entry that declares more data than it carries drives an out-of-bounds read past the EEPROM buffer (verified with a KASAN reproducer of the conversion loop). The sibling converters p54_convert_output_limits() and p54_convert_db() already validate their counts against the entry length; this path was missed. Reject the entry when the counts do not fit in the entry data.
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 eff1a59c48e3c6a006eb4fe5f2e405a996f2259d ~ 81084c967c18233b19799a0c3352ebac043f31e2 -
Linux Linux 2.6.24 -

II. Public POCs for CVE-2026-98188

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III. Intelligence Information for CVE-2026-98188

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Patches & Fixes for CVE-2026-98188 (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-2026-98188

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