CVE-2025-40240 (GCVE-0-2025-40240)
Vulnerability from cvelistv5
Published
2025-12-04 15:31
Modified
2026-08-05 12:08
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
Version: 90017accff61ae89283ad9a51f9ac46ca01633fb
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}


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