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CVE-2026-90150— pnfs/blocklayout: Fix device leaks on parse failure

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： pnfs/blocklayout：修复解析失败时的设备内存泄漏问题 和 会分配一个子设备数组，然后依次解析每个子设备。如果某个子设备的解析失败，该失败的子设备不会被计入 ，且父设备可能保留一个子设备数组，而 在 为零时不会释放该数组。 修复方式如下：在返回错误前，先释放那个解析失败的子设备以及之前已成功解析的子设备。同时，修改 ，只要 指针已设置，就释放子设备数组，从而确保部分初始化的 concat 或 stripe 设备能够被正确清理。 此外， 在分配 并释放文件引用（

AI Predicted 3.2 Difficulty: Hard EPSS 0.20% · P9

Possible ATT&CK Techniques 2 AI

T1499 · Endpoint Denial of Service T1562

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4< 8a2494964edac2a13e82441c2bf887548dc3be0b affected
5c83746a0cf2831d4b59f5cf99ef5fbf138564e4< 1e1c36b206c659cf94c6755a1d821ed1babd32bc affected
5c83746a0cf2831d4b59f5cf99ef5fbf138564e4< 23e4162405c456ce12c772d5882d306135e828ae affected
5c83746a0cf2831d4b59f5cf99ef5fbf138564e4< c056f817e4200fb18079d5052c273a22f191ff0a affected
3.18 affected
< 3.18 unaffected
6.12.110≤ 6.12.* unaffected
6.18.52≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-90150

Vulnerability Information
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Vulnerability Title
pnfs/blocklayout: Fix device leaks on parse failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: pnfs/blocklayout: Fix device leaks on parse failure bl_parse_concat() and bl_parse_stripe() allocate a child device array and then parse each child in turn. If parsing a child fails, the failed child is not counted in nr_children and the parent may be left with a children array that bl_free_device() will not release when nr_children is zero. Release the failed child and the already parsed children before returning the error. Also make bl_free_device() release the child array whenever the children pointer is set, so that partially initialised concat or stripe devices are cleaned up correctly. bl_parse_scsi() can also fail after assigning d->bdev_file and dropping the file reference. Clear the pointer after fput() so that an outer cleanup path does not put it again.
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 5c83746a0cf2831d4b59f5cf99ef5fbf138564e4 ~ 8a2494964edac2a13e82441c2bf887548dc3be0b -
Linux Linux 3.18 -

II. Public POCs for CVE-2026-90150

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III. Intelligence Information for CVE-2026-90150

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Patches & Fixes for CVE-2026-90150 (4)

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

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-2026-92489 9.8 CRITICAL xfrm: Fix skb double-free in xfrm_dev_direct_output()
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
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-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-93189 8.8 HIGH HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90286 8.8 HIGH drm/amdgpu/gfx6: Use PFP on the compute queues too
CVE-2026-90255 8.8 HIGH Bluetooth: hci_conn: fix the SCO setup context lifetime
CVE-2026-90425 8.8 HIGH iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-90162 8.8 HIGH ksmbd: defer publishing granted locks to prevent UAF/double-free race
CVE-2026-90240 8.8 HIGH iommu/vt-d: Flush context cache with correct SID when tearing down aliases
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
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-2026-90150

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