CVE-2026-80639

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Source
https://cve.org/CVERecord?id=CVE-2026-80639
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80639.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-80639
Downstream
Published
2026-08-28T06:48:52.045Z
Modified
2026-08-29T03:47:17.026240118Z
Summary
cxl/test: Fix __fortify_panic
Details

In the Linux kernel, the following vulnerability has been resolved:

cxl/test: Fix _fortifypanic

Fix a runtime assertion in setupxormapping(). Fortify complains that it is potentially overflowing the xormaps array per _countedby(nrmaps). Quiet the false positive by initializing @nrmaps earlier.

memcpy: detected buffer overflow: 32 byte write of buffer size 0 WARNING: lib/string_helpers.c:1036 at __fortify_report+0x4d/0xa0, CPU#8: modprobe/2728 Call Trace: __fortifypanic+0xd/0xf setupxormapping+0x6c/0xa0 [cxltranslate]

[ dj: Fixed up @nrentries to @nrmaps in commit log. ]

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80639.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
06377c54a133621d61fa76cdcea85077c5b958f4
Fixed
8c4f27a7f364eab514d2fa55c11f39d505122f1b
Fixed
08326b92c7a414a73b5b308d1daf0e91e0134dfc

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80639.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80639.json"