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CVE-2026-98566— drm/imagination: clamp freelist reconstruction requests

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： drm/imagination：对空闲列表重建请求进行截断（clamp） 固件重建计数用于控制对请求中固定空闲列表 ID 数组的访问，以及向固定响应数组的复制操作。当前，这两处访问均未将计数限制在协议数组的合法范围内。 现采取以下措施：将计数截断至请求容量（该容量与响应布局共享），并在重建过程和响应发布过程中一致使用该计数。同时，保留固件恢复交互机制，而非直接丢弃超出容量的请求且不提供响应；此方案已与固件维护者讨论确认。 该问题由我们的静态分析工具发现。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.20% · P9

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 6eedddab733b350886571f98b810108b13bf74ae< b78f8f5532a077baa4aabccf657a4fb3b164659e affected
6eedddab733b350886571f98b810108b13bf74ae< e0560db0ea6e10c283ebe7c259a7af8d3b6e61a6 affected
6eedddab733b350886571f98b810108b13bf74ae< eabd0ae3611769c826dbc118a1e240628731b348 affected
6eedddab733b350886571f98b810108b13bf74ae< 45585c3aa285854face65293acc95eff73063d6d affected
6.8 affected
< 6.8 unaffected
6.12.112≤ 6.12.* unaffected
6.18.55≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-98566

Vulnerability Information
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Vulnerability Title
drm/imagination: clamp freelist reconstruction requests
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/imagination: clamp freelist reconstruction requests The firmware reconstruction count controls accesses to the request's fixed freelist ID array and the copy into the fixed response array. Neither access currently bounds the count to those protocol arrays. Clamp the count to the request capacity, which is shared by the response layout, and use that count consistently for reconstruction and response publication. Keep the firmware recovery exchange instead of dropping an oversized request without a response, as discussed with the firmware maintainer. The issue was found by our static-analysis tool.
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 6eedddab733b350886571f98b810108b13bf74ae ~ b78f8f5532a077baa4aabccf657a4fb3b164659e -
Linux Linux 6.8 -

II. Public POCs for CVE-2026-98566

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III. Intelligence Information for CVE-2026-98566

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Patches & Fixes for CVE-2026-98566 (3)

Same Patch Batch · Linux · 2026-10-18 · 435 CVEs total

CVE-2026-98720 KVM: nVMX: Force MSR bitmap refresh if runtime eVMCS controls are modified
CVE-2026-98733 Bluetooth: hci_core: Serialize fragmented ISO packet queueing
CVE-2026-98732 Bluetooth: btintel: fix buffer over-read in btintel_hw_error()
CVE-2026-98731 Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame()
CVE-2026-98730 Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()
CVE-2026-98729 x86/mm: Don't apply va_align to hugetlb mappings on AMD F15h
CVE-2026-98728 tpm: fix off-by-four bounds check in tpm2_get_random()
CVE-2026-98727 nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known
CVE-2026-98726 nvme-multipath: fix underflow in ANA log bounds checks
CVE-2026-98725 nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge()
CVE-2026-98724 nvmet: pci-epf: reject too-short SGL segments
CVE-2026-98723 nvmet: copy the hostid into the ctrl before creating PR pc_refs
CVE-2026-98722 mtd: block2mtd: Fix divide error when erase_size is zero
CVE-2026-98721 mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ
CVE-2026-98709 wifi: mac80211: count only matching reservations in reserved switch
CVE-2026-98712 KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq
CVE-2026-98711 wifi: cw1200: fix TX padding OOB read leaking heap data to device
CVE-2026-98710 wifi: iwlegacy: 3945: free EEPROM data on remove
CVE-2026-98713 KVM: arm64: Apply the fine-grained UNDEFs without FEAT_FGT
CVE-2026-98707 wifi: mac80211: shut down RX BA session timer on teardown

Showing top 20 of 435 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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