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CVE-2026-98892— firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size

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，以下漏洞已被修复： 固件：arm_scmi：验证 BASE_ERROR_EVENT 负载大小 BASE_ERROR_EVENT 携带可变数量的消息报告，其数量编码在 error_status 字段中。通知解析器在检查接收到的负载是否包含所有已报告的条目之前，直接使用了该计数。 在复制报告数组之前，拒绝截断的负载。

AI Predicted 7.8 Difficulty: Hard

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 4a754704698017ced0b657c92b468035faad00ed affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 28d65a0a46435d48b96b6943c518095dff1602a1 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 890a9c3bf9dae90dcabded9d8e10c708a13779f7 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< c0742f23ec13fb6f5e0cd884323467a6c127d3c2 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< bd8bc95ef2daa3bac56197cffcbf2d4c5ed42216 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< cb77a50d1114c0c9e084176301a8e094d383edfa affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 56e7e64cdd0e7209a58c8ec66028d63387402919 affected
< 5.10.271 affected
… +12 more rows
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I. Basic Information for CVE-2026-98892

Vulnerability Information
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Vulnerability Title
firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Validate BASE_ERROR_EVENT payload size BASE_ERROR_EVENT carries a variable number of message reports, with the count encoded in error_status. The notification parser used that count without checking whether the received payload contained all reported entries. Reject truncated payloads before copying the report array.
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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 4a754704698017ced0b657c92b468035faad00ed -
Linux Linux 5.10.271 ~ 5.10.* -

II. Public POCs for CVE-2026-98892

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III. Intelligence Information for CVE-2026-98892

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Patches & Fixes for CVE-2026-98892 (6)

Same Patch Batch · Linux · 2026-10-23 · 218 CVEs total

CVE-2026-98938 rust: irq: pass RegistrationInner as cookie to request_irq
CVE-2026-98951 riscv: ptrace: Zero-initialize regset buffers before copyin
CVE-2026-98950 flow_dissector: avoid u16 truncation of hlen in bpf_flow_dissect()
CVE-2026-98949 drm/imagination: Fix reference and vm_bo handling in remap()
CVE-2026-98948 mlxsw: spectrum_flower: Fix port range register leak in tmplt_create()
CVE-2026-98947 vsock: Fix memory leak in vmci_transport_recv_dgram_cb()
CVE-2026-98946 drm/vc4: Disable the V3D interrupt across runtime suspend
CVE-2026-98945 HID: steam: Rearrange teardown sequence
CVE-2026-98944 HID: steam: Refactor registration
CVE-2026-98943 HID: steam: Clean up locking
CVE-2026-98942 sched_ext: Build the cid tables privately and publish them with RCU
CVE-2026-98941 ext4: don't enable large folios on encrypted inodes
CVE-2026-98940 ASoC: qcom: lpass-cpu: use DAI table index for playback constraints
CVE-2026-98939 x86/mm: Drop unnecessary PMD page copy when freeing
CVE-2026-98927 KVM: arm64: nv: Fix life cycle of the nested_mmus array
CVE-2026-98930 KVM: s390: Fix IRQ injection with SIGP Stop and Store Status
CVE-2026-98929 macsec: initialize SecY before registering the netdevice
CVE-2026-98928 KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2
CVE-2026-98931 mtd: spinand: fix NULL pointer dereference with no ECC engine
CVE-2026-98926 drm/amd/display: Remove sink usage from DPMS

Showing top 20 of 218 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98892

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