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CVE-2026-93161— crypto: qat - clear AES key schedule from stack

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，已解决以下漏洞： crypto: qat - 清除堆栈上的 AES 密钥扩展（key schedule） 函数会在堆栈上扩展正向 XTS AES 密钥。该密钥扩展结果包含密钥材料，并可能残留在堆栈帧中。 在拷贝完成后，使用 显式清除临时的 结构体。

AI Predicted 3.1 Difficulty: Hard EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1527

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 5106dfeaeabea73d5132daab1d89d57b57fa98b7< b9cf42622b30178f554fa74411eec67e02d70411 affected
5106dfeaeabea73d5132daab1d89d57b57fa98b7< fb1194b78a163cc56bb9480c707fc34b53522359 affected
5106dfeaeabea73d5132daab1d89d57b57fa98b7< 892f34dc1819cceb8841005a68086710ce3763b6 affected
5106dfeaeabea73d5132daab1d89d57b57fa98b7< dcaa0f1e86cbcb01f68131ae907b54cf299a3592 affected
5106dfeaeabea73d5132daab1d89d57b57fa98b7< 9af019e213ada5c3d0d33c515071a1414b6899f3 affected
5106dfeaeabea73d5132daab1d89d57b57fa98b7< 92e4979e1a770860b26aa3d90cce0c4c6a53833c affected
5106dfeaeabea73d5132daab1d89d57b57fa98b7< d41a9fcfb7f9ee36e4a4aaf5e7996bca6be1e7a9 affected
5.11 affected
… +8 more rows
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I. Basic Information for CVE-2026-93161

Vulnerability Information
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Vulnerability Title
crypto: qat - clear AES key schedule from stack
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - clear AES key schedule from stack qat_alg_xts_reverse_key() expands the forward XTS AES key on the stack. That schedule contains key material and can remain in the stack frame. Clear the temporary crypto_aes_ctx with memzero_explicit() after the copy.
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 5106dfeaeabea73d5132daab1d89d57b57fa98b7 ~ b9cf42622b30178f554fa74411eec67e02d70411 -
Linux Linux 5.11 -

II. Public POCs for CVE-2026-93161

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III. Intelligence Information for CVE-2026-93161

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Patches & Fixes for CVE-2026-93161 (7)

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

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