-

CVE-2026-98131

net: stmmac: fix dma mapping leak in stmmac_tso_xmit()

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

net: stmmac: fix dma mapping leak in stmmac_tso_xmit()

In stmmac_tso_xmit(), if the DMA mapping of an skb fragment fails, the
frame is dropped but the DMA mappings already created for the linear
part and for the fragments mapped before the failure are never
unmapped, leaking DMA mappings.

Fix the leak by walking back over the descriptors used by the frame and
releasing each of them with stmmac_free_tx_buffer(). Moreover, release
the descriptors with stmmac_release_tx_desc() unmapping the DMA buffers.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version f748be531d7012c456b97f66091d86b3675c5fef
Version < e85adaac3dc6317cae902372c6849189ec62cf7d
Status affected
Version f748be531d7012c456b97f66091d86b3675c5fef
Version < a5d946466a95621fa2769720d59ea336003aa1a5
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.7
Status affected
Version 0
Version < 4.7
Status unaffected
Version <= 7.2.*
Version 7.2.7
Status unaffected
Version <= *
Version 7.3-rc2
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.04
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/e85adaac3dc6317cae902372c6849189ec62cf7d
https://git.kernel.org/stable/c/a5d946466a95621fa2769720d59ea336003aa1a5