CVE-2026-98187— wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST
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: p54: 在 PDR_INTERFACE_LIST 中要求 exp_if 记录完整 PDR_INTERFACE_LIST 循环仅在读取整个 exp_if 结构体之前检查记录起始位置是否位于条目内。如果尾部记录被截断，则 if_id 和 variant 字段的读取会越过条目边界，进入 EEPROM 缓冲区之后的堆内存（通过 KASAN 复现循环已验证）。由于 variant 字段还用于合成前端选择，因此这不仅是信息泄漏问题，还可能导致其他安全风险。 只有当完整记录
Possible ATT&CK Techniques 2 AI
T1213 · Data from Information Repositories T1005 · Data from Local SystemAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 162dbe1c285a621eab6a9f2851086b63a0378928 |
affected |
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 70bf34b425fe549a4f6a8d50a319f8f05d1f91c9 |
affected | ||
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< 487f966421014de41e835bbce3feb30b35f4f729 |
affected | ||
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< bc83c04be042f53869c315b8e1eb5f124959d1d7 |
affected | ||
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< d44c1badc2dcb042985f7e37f4c448c84548b81f |
affected | ||
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< d2fb6b588dc5bbab4f603661e41cd60f0d931628 |
affected | ||
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< d82492fd0a3fb61963c236521852763238ad3898 |
affected | ||
eff1a59c48e3c6a006eb4fe5f2e405a996f2259d< d8efd84f49379ed28624098821f80e992657d935 |
affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2026-98187
Vulnerability Information
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Vulnerability Title
wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: p54: require a full exp_if record in PDR_INTERFACE_LIST
The PDR_INTERFACE_LIST loop only checks that the record start is within
the entry before reading an entire struct exp_if from it. A truncated
trailing record makes the if_id/variant reads cross the entry boundary
into the heap beyond the EEPROM buffer (verified with a KASAN
reproducer of the loop). The variant also feeds the synth front-end
selection, so this is not only a leak.
Advance only while a full record still fits in the entry.
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
II. Public POCs for CVE-2026-98187
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-98187 (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 → →
IV. Related Vulnerabilities
Same product: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
CVE-2026-98382
bpf: Reject dev-bound-only programs on other devices -
CVE-2026-98381
veth: manage XDP program pointers during channel resize -
CVE-2026-98380
net/sched: reject IDR error pointers when deleting actions
Same vendor: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
CVE-2026-98382
bpf: Reject dev-bound-only programs on other devices -
CVE-2026-98381
veth: manage XDP program pointers during channel resize -
CVE-2026-98380
net/sched: reject IDR error pointers when deleting actions
V. Comments for CVE-2026-98187
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