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CVE-2026-74708

xsk: validate launch-time metadata size

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

xsk: validate launch-time metadata size

Launch-time metadata extends beyond the first 16 bytes of struct
xsk_tx_metadata. Reject the request when the registered metadata area does
not contain the complete field.

Snapshot the validated flags for the generic transmit path and use that
snapshot for request and completion processing, avoiding inconsistent
decisions if user space changes the flags concurrently.

Note that only xsk_skb_metadata is properly using the flags,
__xsk_buff_get_metadata ignores them. Next commits address that.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version ca4419f15abd19ba8be1e109661b60f9f5b6c9f0
Version < af511afa1d2977f384044df78d6fbf9fba653f7a
Status affected
Version ca4419f15abd19ba8be1e109661b60f9f5b6c9f0
Version < bc63d47611c07b0d5d655fe1a590861931527920
Status affected
Version ca4419f15abd19ba8be1e109661b60f9f5b6c9f0
Version < 439ce2dddf3d22129b9113a7881637256a35e936
Status affected
Version d9d736c416c9a85f84e15435ba82a177262e745b
Status affected
Version 6.14.2
Version < 6.15
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.15
Status affected
Version 0
Version < 6.15
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 0.21% 0.11
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/439ce2dddf3d22129b9113a7881637256a35e936
https://git.kernel.org/stable/c/af511afa1d2977f384044df78d6fbf9fba653f7a
https://git.kernel.org/stable/c/bc63d47611c07b0d5d655fe1a590861931527920