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CVE-2026-98165— drm/amdgpu: restrict BAR0 fallback read to SR-IOV VFs only

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： drm/amdgpu：限制 BAR0 回退读取仅适用于 SR-IOV 虚拟功能（VF） BAR0 回退读取路径是作为针对 SR-IOV 虚拟功能（VF）的临时解决方案引入的，因为在早期初始化阶段这些 VF 无法访问显存（VRAM）地址空间。现将该临时解决方案限制为仅在被需要的 SR-IOV 虚拟功能（VF）上启用。 （从提交 d8a0affd207c813bd063fa2c27786f449eaf92b8 拣选）

AI Predicted 3.7 Difficulty: Hard EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 5

VendorProduct Version RangeStatus
Linux Linux 95eccb9be68df6449d854242b5fcdfd063a2fac1< 5612934c255ad9352d07181f14981cfabd7b7a95 affected
cba4928cdffaa0f9012acff0ec4f896320107077< bd1f08246b8a2564d8ac61df715b6bcd5f994729 affected
7.3-rc1 affected
< 7.3-rc1 unaffected
7.3-rc2≤ * unaffected
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I. Basic Information for CVE-2026-98165

Vulnerability Information
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Vulnerability Title
drm/amdgpu: restrict BAR0 fallback read to SR-IOV VFs only
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: restrict BAR0 fallback read to SR-IOV VFs only The BAR0 fallback read path was introduced as a workaround for SR-IOV VFs where the VRAM aperture is not available during early init. Restrict this workaround to only SR-IOV VFs where it's needed. (cherry picked from commit d8a0affd207c813bd063fa2c27786f449eaf92b8)
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 95eccb9be68df6449d854242b5fcdfd063a2fac1 ~ 5612934c255ad9352d07181f14981cfabd7b7a95 -
Linux Linux 7.3-rc1 -

II. Public POCs for CVE-2026-98165

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III. Intelligence Information for CVE-2026-98165

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Patches & Fixes for CVE-2026-98165 (2)

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-2026-98369 7.8 HIGH xfrm: add missing rcu_read_lock(), skb_dst_force() and dev_hold() for xfrm_trans_reinject(
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-2026-98311 7.8 HIGH wifi: virt_wifi: don't transfer operstate before register
CVE-2026-98166 7.8 HIGH drm/ttm: fix swapped-out resources never leaving their bulk_move range
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 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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