CVE-2026-74275
HighCVSS 8.4Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
In the Linux kernel CXL region subsystem, cxl_cancel_auto_attach() used cxled->pos as an index into p->targets[], but it could be a negative errno, causing out-of-bounds access.
Risk Assessment
Out-of-bounds access can lead to system crashes or unpredictable behavior, especially in environments using CXL memory.
Recommendation
Apply the Linux kernel update that iterates over p->targets[] instead of using cxled->pos.
Original NVD description (English source)
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.