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CVE-2025-40240

sctp: avoid NULL dereference when chunk data buffer is missing

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

sctp: avoid NULL dereference when chunk data buffer is missing

chunk->skb pointer is dereferenced in the if-block where it's supposed
to be NULL only.

chunk->skb can only be NULL if chunk->head_skb is not. Check for frag_list
instead and do it just before replacing chunk->skb. We're sure that
otherwise chunk->skb is non-NULL because of outer if() condition.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 61cda2777b07d27459f5cac5a047c3edf9c8a1a9
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 08165c296597075763130919f2aae59b5822f016
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196f
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < cb9055ba30306ede4ad920002233d0659982f1cb
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 7a832b0f99be19df608cb75c023f8027b1789bd1
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 89b465b54227c245ddc7cc9ed822231af21123ef
Status affected
Version 90017accff61ae89283ad9a51f9ac46ca01633fb
Version < 441f0647f7673e0e64d4910ef61a5fb8f16bfb82
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.8
Status affected
Version 0
Version < 4.8
Status unaffected
Version <= 5.4.*
Version 5.4.301
Status unaffected
Version <= 5.10.*
Version 5.10.246
Status unaffected
Version <= 5.15.*
Version 5.15.196
Status unaffected
Version <= 6.1.*
Version 6.1.158
Status unaffected
Version <= 6.6.*
Version 6.6.115
Status unaffected
Version <= 6.12.*
Version 6.12.56
Status unaffected
Version <= 6.17.*
Version 6.17.6
Status unaffected
Version <= *
Version 6.18
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 0.04% 0.122
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.