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CVE-2026-98492

net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths

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

net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths

Fix 3 leaks in macb_alloc() error paths:
- Tx buffer allocated but crossing a 4G boundary: Tx leaked.
- Rx buffer allocation fails: Tx leaked.
- Rx buffer allocated but crossing a 4G boundary: Tx & Rx leaked.

This is because our error handling calls macb_free(bp) which in turn
frees the buffers stored in bp->queues[0], but nothing has been stored
in there. Fix by storing allocated buffers into bp->queues[0] ASAP.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 78d901897b3cae06b38f54e48a2378cf9da21175
Version < bda487567d0b7b15dfa876511085c0666b9efad5
Status affected
Version 78d901897b3cae06b38f54e48a2378cf9da21175
Version < 259e6cbb6a097da8ced544ee92a6fbde35aa1338
Status affected
Version 78d901897b3cae06b38f54e48a2378cf9da21175
Version < 23d42b9a3bcd55b17d3b371544fedc708c2397e9
Status affected
Version 982a4d9a2e12b693f684eff943043a607628d871
Status affected
Version 6.17.3
Version < 6.18
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.18
Status affected
Version 0
Version < 6.18
Status unaffected
Version <= 6.18.*
Version 6.18.55
Status unaffected
Version <= 7.2.*
Version 7.2.9
Status unaffected
Version <= *
Version 7.3
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% 0.09
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/bda487567d0b7b15dfa876511085c0666b9efad5
https://git.kernel.org/stable/c/259e6cbb6a097da8ced544ee92a6fbde35aa1338
https://git.kernel.org/stable/c/23d42b9a3bcd55b17d3b371544fedc708c2397e9