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CVE-2026-90411— nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request

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： nvme-fc：在 中，当 映射失败时，未对 执行 DMA 解映射 函数首先为 和 建立 DMA 映射。如果 的映射失败，原代码仅记录错误并继续执行：它未在返回前解映射已经映射好的 ，并且仍将操作（op）标记为 。由于当 失败时，blk-mq 不会调用 ，因此对于每一个 映射失败的操作，其 的映射都会被泄漏。 修复方案：当 映射失败时，跳转到错误处理路径，在该路径中解映射 并返回错误，同时不将操作标记为空闲状态，使其保持在由初始 设定的 状态。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e399441de9115cd472b8ace6c517708273ca7997< c0892cfb60a75e2c86ba8e2127b133f6549c12b3 affected
e399441de9115cd472b8ace6c517708273ca7997< 5e820d04c241c81a47e1940349018690e93d8167 affected
e399441de9115cd472b8ace6c517708273ca7997< bb0251991420c25e3ceeac40ea09250d79ed7ef0 affected
e399441de9115cd472b8ace6c517708273ca7997< acc173608ca7abe5dee8983086b44efd8b0dbc84 affected
e399441de9115cd472b8ace6c517708273ca7997< 18c5781ed8bc2f423c26ec93e47e2057cd76a783 affected
e399441de9115cd472b8ace6c517708273ca7997< bd764baf82bb46e958a0bd0b481630dd71313055 affected
e399441de9115cd472b8ace6c517708273ca7997< be5eb47ee3fea338efae1a5b678d6bb5f0fcc931 affected
e399441de9115cd472b8ace6c517708273ca7997< f49d0c3a8d56a7cda1628ae17341a4a42063563c affected
… +10 more rows
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I. Basic Information for CVE-2026-90411

Vulnerability Information
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Vulnerability Title
nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request __nvme_fc_init_request() maps cmd_iu and then rsp_iu for DMA. If the rsp_iu mapping fails, the original code only recorded the error and fell through: it left the already-mapped cmd_iu unmapped and still marked the op as FCPOP_STATE_IDLE before returning. Since blk-mq does not call .exit_request() when .init_request() fails, the cmd_iu mapping is leaked for every op whose rsp_iu mapping fails. Jump to an error path on rsp_iu mapping failure that unmaps cmd_iu and returns the error without marking the op idle, so it stays in the FCPOP_STATE_UNINIT state set by the initial memset().
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 e399441de9115cd472b8ace6c517708273ca7997 ~ c0892cfb60a75e2c86ba8e2127b133f6549c12b3 -
Linux Linux 4.10 -

II. Public POCs for CVE-2026-90411

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III. Intelligence Information for CVE-2026-90411

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Patches & Fixes for CVE-2026-90411 (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-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
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-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-93189 8.8 HIGH HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
CVE-2026-90240 8.8 HIGH iommu/vt-d: Flush context cache with correct SID when tearing down aliases
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90286 8.8 HIGH drm/amdgpu/gfx6: Use PFP on the compute queues too
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
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
CVE-2026-90255 8.8 HIGH Bluetooth: hci_conn: fix the SCO setup context lifetime

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-2026-90411

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