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CVE-2026-93158— crypto: sa2ul - stop probe if context pool creation fails

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，以下漏洞已得到解决： crypto: sa2ul - 如果上下文池创建失败，则停止探测（probe） 调用 来创建用于安全上下文缓冲区的 DMA 池，但忽略了其返回值。如果池创建失败，探测过程仍会继续执行 DMA 设置、算法注册和子节点填充等操作，尽管后续的请求设置依赖于该 DMA 池。 当 失败时应停止探测，并将该失败路由到电源管理（PM）清理路径，而不尝试销毁一个尚未创建的 DMA 池。

AI Predicted 3.5 Difficulty: Moderate EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 7694b6ca649fead1a57046935711bc82dfc78cfb< 304dcd26bfc3ce6771c2bd3b7c0299dcfd5f4e06 affected
7694b6ca649fead1a57046935711bc82dfc78cfb< 9907426b438e4dbc8c45138bd440ad6d732d80b7 affected
7694b6ca649fead1a57046935711bc82dfc78cfb< 9a692a6a2b47328a36c8d80c7fbf81da16b6d6b1 affected
7694b6ca649fead1a57046935711bc82dfc78cfb< 04c46784ec249cac995e31f0691397b82bdaa5fd affected
7694b6ca649fead1a57046935711bc82dfc78cfb< f72c7837614a9705f8b3021828d49c9f095803ba affected
7694b6ca649fead1a57046935711bc82dfc78cfb< 91ded4742fcde6ad415c4d8a20e5ea0dcdf4f73e affected
7694b6ca649fead1a57046935711bc82dfc78cfb< b68b35ed97d3e18edb9dea500d88420a95006742 affected
7694b6ca649fead1a57046935711bc82dfc78cfb< d03f980a25853f6a380895119a572a3bb1194e8d affected
… +10 more rows
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I. Basic Information for CVE-2026-93158

Vulnerability Information
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Vulnerability Title
crypto: sa2ul - stop probe if context pool creation fails
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: sa2ul - stop probe if context pool creation fails sa_ul_probe() calls sa_init_mem() to create the DMA pool used for security context buffers, but ignores its return value. If pool creation fails, probe still continues with DMA setup, algorithm registration and child population even though later request setup depends on that pool. Stop probing when sa_init_mem() fails, and route that failure to the PM cleanup path without attempting to destroy an uncreated DMA pool.
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 7694b6ca649fead1a57046935711bc82dfc78cfb ~ 304dcd26bfc3ce6771c2bd3b7c0299dcfd5f4e06 -
Linux Linux 5.9 -

II. Public POCs for CVE-2026-93158

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III. Intelligence Information for CVE-2026-93158

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Patches & Fixes for CVE-2026-93158 (7)

Vendor Advisories for CVE-2026-93158 (1)

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-2026-93158

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