CVE-2026-74275

cxl/region: Fix out-of-bounds access in cxl_cancel_auto_attach()

HIGH
8.4
CVSS Score
Published: August 15, 2026 at 05:57 AM UTC
Updated: August 17, 2026 at 06:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.4
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix out-of-bounds access in cxl_cancel_auto_attach() In cxl_cancel_auto_attach(), it assumes cxled->pos is a valid index for accessing p->targets[]. However, cxled->pos can be set to negative errno in cxl_region_sort_targets() if cxl_calc_interleave_pos() fails. This causes the driver to use a negative index to access p->targets[], resulting in out-of-bounds access. Fix it by walking p->targets[] instead of using cxled->pos directly.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.1 ≤ v < 7.1.57.1 ≤ v < 7.27.187805c32e6ad7b5ce2d9f7f47e76081857a4a335
Vendor states this is fixed in 44b2397eb67b7f728640989a22d062e41f94ab64 (fixed)
Vendor states this is fixed in cbda6a2c2bec2a5fb30a2ce85baeab15b5fc7db3 (fixed)
Vendor states this is fixed in 7.1 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

8.4HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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