CVE-2026-80640
- Source
- https://cve.org/CVERecord?id=CVE-2026-80640
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80640.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80640
- Downstream
- Published
- 2026-08-28T06:48:52.650Z
- Modified
- 2026-08-30T03:48:20.872088708Z
- Summary
- cxl/fwctl: Fix __fortify_panic
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
cxl/fwctl: Fix _fortifypanic
Fix a runtime assertion in cxlctlgetsupported_features(). Fortify complains that it is potentially overflowing the entries array per __countedbyle(numentries). Quiet the false positive by initializing @numentries 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: _fortifypanic+0xd/0xf cxlctlgetsupportedfeatures.cold+0x23/0x35 [cxlcore]
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80640.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/18c67ecc5dafe14055edcea53f36f4e31df1816b
- https://git.kernel.org/stable/c/6c9d2e87df40d606f1c85143e9acb1ecff463d5e
- https://git.kernel.org/stable/c/b8d15e85596ad8993d42e0703a9741961a2f03eb
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80640.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80640
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git