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CVE-2026-80639

cxl/test: Fix __fortify_panic

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

cxl/test: Fix __fortify_panic

Fix a runtime assertion in setup_xor_mapping(). Fortify complains that it
is potentially overflowing the xormaps array per __counted_by(nr_maps).
Quiet the false positive by initializing @nr_maps 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:
  __fortify_panic+0xd/0xf
  setup_xor_mapping+0x6c/0xa0 [cxl_translate]

[ dj: Fixed up @nr_entries to @nr_maps in commit log. ]
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 06377c54a133621d61fa76cdcea85077c5b958f4
Version < 8c4f27a7f364eab514d2fa55c11f39d505122f1b
Status affected
Version 06377c54a133621d61fa76cdcea85077c5b958f4
Version < 08326b92c7a414a73b5b308d1daf0e91e0134dfc
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.19
Status affected
Version 0
Version < 6.19
Status unaffected
Version <= 7.1.*
Version 7.1.5
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.067
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/8c4f27a7f364eab514d2fa55c11f39d505122f1b
https://git.kernel.org/stable/c/08326b92c7a414a73b5b308d1daf0e91e0134dfc