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CVE-2026-74602

ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()

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

ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()

In rb_allocate_cpu_buffer(), bpage->order was omitted, leaving it as 0.
This is an issue for a ring-buffer with subbufs bigger than PAGE_SIZE if
when freed: free_buffer_page() relies on this value. Align the value
with the actual allocation size (buffer::subbuf_order).
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version f9b94daa542a8d2532f0930f01cd9aec2d19621b
Version < 7c620d89bae1a926ab7d626600285d3516c9f3c4
Status affected
Version f9b94daa542a8d2532f0930f01cd9aec2d19621b
Version < 2e37f2bf111429fbfa4d985b12df3ba496ca70aa
Status affected
Version f9b94daa542a8d2532f0930f01cd9aec2d19621b
Version < 3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a
Status affected
Version f9b94daa542a8d2532f0930f01cd9aec2d19621b
Version < 6d014e44b68ddd43f71288d2a4dbb1a259869149
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.8
Status affected
Version 0
Version < 6.8
Status unaffected
Version <= 6.12.*
Version 6.12.105
Status unaffected
Version <= 6.18.*
Version 6.18.45
Status unaffected
Version <= 7.1.*
Version 7.1.9
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% 0.062
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/2e37f2bf111429fbfa4d985b12df3ba496ca70aa
https://git.kernel.org/stable/c/3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a
https://git.kernel.org/stable/c/6d014e44b68ddd43f71288d2a4dbb1a259869149
https://git.kernel.org/stable/c/7c620d89bae1a926ab7d626600285d3516c9f3c4