9.8

CVE-2026-74545

rtase: fix double free of multi-frag skb on DMA map failure

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

rtase: fix double free of multi-frag skb on DMA map failure

In rtase_start_xmit(), when the head buffer DMA mapping fails after
rtase_xmit_frags() has mapped all fragments, the error path clears
the fragment descriptors with rtase_tx_clear_range(), which frees
the skb through the last-frag slot and accounts tx_dropped. Control
then falls through to the common error label, which frees the same
skb a second time and counts it again.

Return right after clearing the fragments when the skb owns frags;
the no-frag case still drops through and frees the head skb once.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version d6e882b89fdf80be0ab4f914ec10f75215e49495
Version < 4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb
Status affected
Version d6e882b89fdf80be0ab4f914ec10f75215e49495
Version < db986098f30881fafcc752800aa3b13fd289c922
Status affected
Version d6e882b89fdf80be0ab4f914ec10f75215e49495
Version < de691dc3227b061c4d0beba9f0128fe1ff33dd68
Status affected
Version d6e882b89fdf80be0ab4f914ec10f75215e49495
Version < 6fb7b769d6ed6d1d2e02af4a80e57a2477f35086
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.12
Status affected
Version 0
Version < 6.12
Status unaffected
Version <= 6.12.*
Version 6.12.103
Status unaffected
Version <= 6.18.*
Version 6.18.44
Status unaffected
Version <= 7.1.*
Version 7.1.8
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 0.46% 0.378
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb
https://git.kernel.org/stable/c/db986098f30881fafcc752800aa3b13fd289c922
https://git.kernel.org/stable/c/de691dc3227b061c4d0beba9f0128fe1ff33dd68
https://git.kernel.org/stable/c/6fb7b769d6ed6d1d2e02af4a80e57a2477f35086