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CVE-2026-98057

ring-buffer: Add checking nr_subbufs to persistent ring buffer validation

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

ring-buffer: Add checking nr_subbufs to persistent ring buffer validation

Sashiko reported that the code was using meta->nr_subbufs without making
sure that it matched the nr_pages + 1 on data that was assuming the two
were the same.

Add a check to the persistent ring buffer validation code to make sure
that the saved nr_subbufs matches what we expect.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 3ec743d558f111d8999aea24577ba66c65ee2eeb
Version < f0467190e6a9fc61e343c8064ef16aad513788c3
Status affected
Version f5b95f1fa2ef3a03f49eeec658ba97e721412b32
Version < 69d502457e3f76142f7fcf6e2625e80e0ce8a60f
Status affected
Version f5b95f1fa2ef3a03f49eeec658ba97e721412b32
Version < 6c001a62c34f13fe1c6a24304c289b387d9e697d
Status affected
Version 0d547a6f5e8fad26ebc12f501d7d19fccdbad6bf
Status affected
Version 6.12.16
Version < 6.12.111
Status affected
Version 6.13.4
Version < 6.14
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.14
Status affected
Version 0
Version < 6.14
Status unaffected
Version <= 6.12.*
Version 6.12.111
Status unaffected
Version <= 7.2.*
Version 7.2.7
Status unaffected
Version <= *
Version 7.3-rc2
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% 0.052
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/f0467190e6a9fc61e343c8064ef16aad513788c3
https://git.kernel.org/stable/c/69d502457e3f76142f7fcf6e2625e80e0ce8a60f
https://git.kernel.org/stable/c/6c001a62c34f13fe1c6a24304c289b387d9e697d