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CVE-2026-93177— drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup

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，以下漏洞已修复： drm/amdgpu/pm/powerplay：对 Vega10 查表中的电压索引进行边界检查 来自 VBIOS 解析表的 、 和 在九个位置被用于索引 、 和 查表操作，但均未进行边界检查。修复后，当任意索引超出范围时，返回 。

CVSS 7.3 · High EPSS 0.16% · P6

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux f83a9991648bb4023a53104db699e99305890d51< 206e478810d6af50b25d8da72e3af8d55a014365 affected
f83a9991648bb4023a53104db699e99305890d51< 25dedc13ceb9b6109c79c92a726ca4ca017c9eaa affected
f83a9991648bb4023a53104db699e99305890d51< ae25c92d91f2cb90ede2b0eb0f58efa82ccc718b affected
f83a9991648bb4023a53104db699e99305890d51< b349dcf061a6dc8c6cef9a10530331ef2ff66c72 affected
f83a9991648bb4023a53104db699e99305890d51< dfe89f1a0c7f40ef858b93881198f9728df956cf affected
f83a9991648bb4023a53104db699e99305890d51< 46d27e56dbd6345b9c7b62b67ec57407bf3bf29a affected
f83a9991648bb4023a53104db699e99305890d51< 06aef6dcc1d52da5112cbcde39c062e493247ab5 affected
f83a9991648bb4023a53104db699e99305890d51< 6fa33f594e46e775a94097f71b486d7b006b6917 affected
… +10 more rows
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I. Basic Information for CVE-2026-93177

Vulnerability Information
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Vulnerability Title
drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm/powerplay: bounds-check voltage index in Vega10 lookup vddInd, vddciInd and mvddInd from VBIOS-parsed tables index into vddc, vddci and vddmem lookup tables without bounds checks across nine sites. Return -EINVAL when any index is out of range.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
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 f83a9991648bb4023a53104db699e99305890d51 ~ 206e478810d6af50b25d8da72e3af8d55a014365 -
Linux Linux 4.12 -

II. Public POCs for CVE-2026-93177

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III. Intelligence Information for CVE-2026-93177

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Patches & Fixes for CVE-2026-93177 (8)

Same Patch Batch · Linux · 2026-09-17 · 600 CVEs total

CVE-2026-92489 9.8 CRITICAL xfrm: Fix skb double-free in xfrm_dev_direct_output()
CVE-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
CVE-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
CVE-2026-90110 9.4 CRITICAL inetpeer: randomize RB-tree node comparison using SipHash
CVE-2026-90230 9.1 CRITICAL nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()
CVE-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90425 8.8 HIGH iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-93189 8.8 HIGH HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90379 8.8 HIGH wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
CVE-2026-90371 8.8 HIGH wifi: mt76: fix RXDMAD_C buffer recycling race

Showing top 20 of 600 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-93177

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