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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80640

cxl/fwctl: Fix __fortify_panic

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix __fortify_panic Fix a runtime assertion in cxlctl_get_supported_features(). Fortify complains that it is potentially overflowing the entries array per __counted_by_le(num_entries). Quiet the false positive by initializing @num_entries earlier. memcpy: detected buffer overflow: 48 byte write of buffer size 0 WARNING: lib/string_helpers.c:1036 at __fortify_report+0x4d/0xa0, CPU#7: fwctl/1398 RIP: 0010:__fortify_report+0x50/0xa0 Call Trace: __fortify_panic+0xd/0xf cxlctl_get_supported_features.cold+0x23/0x35 [cxl_core]

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 4d1c09cef2c244bd19467c016a3e56ba28ecc59d to < b8d15e85596ad8993d42e0703a9741961a2f03ebaffected
  • 4d1c09cef2c244bd19467c016a3e56ba28ecc59d to < 18c67ecc5dafe14055edcea53f36f4e31df1816baffected
  • 4d1c09cef2c244bd19467c016a3e56ba28ecc59d to < 6c9d2e87df40d606f1c85143e9acb1ecff463d5eaffected

Linux Linux

Default version status: affected

  • 6.15affected
  • 0 to < 6.15unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References