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CVE-2026-90080

octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup

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

octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup

af_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is
allocated during PF/VF probe. Representors and other non-AF_XDP paths
leave the pointer NULL, but several call sites used test_bit() on it
unconditionally.

Switching to devlink eswitch mode creates representors and runs
otx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses
when dereferencing the NULL bitmap. Add NULL checks before every
af_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init
paths.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version efabce29015189cb5cd8066cf29eb1d754de6c3c
Version < b003d5b4e46ca5033859db601e12d36da24d0e40
Status affected
Version efabce29015189cb5cd8066cf29eb1d754de6c3c
Version < 7e33c6bd049b532d2ec4916895ef07e538bed905
Status affected
Version efabce29015189cb5cd8066cf29eb1d754de6c3c
Version < b09a0503c755b6609fad59a84cc7f05b6843a03c
Status affected
Version 9bd7273cf1f9c5761d696cca821d25602e8f7009
Status affected
Version 6.14.9
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 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
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 0.2% 0.099
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/b003d5b4e46ca5033859db601e12d36da24d0e40
https://git.kernel.org/stable/c/7e33c6bd049b532d2ec4916895ef07e538bed905
https://git.kernel.org/stable/c/b09a0503c755b6609fad59a84cc7f05b6843a03c