CVE-2026-98363— firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
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： firmware: arm_scpi：拒绝超过 MAX_DVFS_OPPS 的 DVFS OPP 计数 函数已经拒绝为零的 ，但仍盲目信任来自 SCP 固件的任何更大值。共享内存回复仅在 中容纳 个条目；如果计数更大，则会越界读取该数组，并导致分配的 OPP 表大小不正确（产生垃圾 OPP 值或越界访问）。缺少上限检查的问题可追溯至最初的 SCPI DVFS 支持。 现在通过一次检查同时拒绝零值和超出范围的计数，并返回 。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8cb7cf56c9fe5412de238465b27ef35b4d2801aa< e9887eeaa138c6b5697af3d2f7c71dc82407b154 |
affected |
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< 1aadbef648e92ca642125f188f99b0a26628e3ba |
affected | ||
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< 7daaa684097377b66b98a832de307688a7f3bbc7 |
affected | ||
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< f17865332cc4ceaac846bcd7c28badbaedfabeff |
affected | ||
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901 |
affected | ||
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9 |
affected | ||
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< cc563a59aded6f3b02d75dcc3c0bc5e90755d99e |
affected | ||
8cb7cf56c9fe5412de238465b27ef35b4d2801aa< 32471d84a487c7fd74532bc96be56f8028cf4a3f |
affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2026-98363
Vulnerability Information
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Vulnerability Title
firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted
any larger value from the SCP firmware. The shared-memory reply only holds
MAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array
and then sizes the allocated OPP table incorrectly (garbage OPPs / OOB).
The missing upper bound dates back to the original SCPI DVFS support.
Reject zero and out-of-range counts in one check and return -EINVAL.
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-2026-98363
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-98363 (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-2026-98281 | 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 → →
IV. Related Vulnerabilities
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CVE-2026-98384
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CVE-2026-98381
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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-2026-98363
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