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cve 2025 40240
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CVE-2025-40240 is a Linux kernel vulnerability in the SCTP (Stream Control Transmission Protocol) receive path that could cause a NULL-pointer dereference when a chunk's data buffer is missing. The upstream patch reorders checks and uses the chunk header instead of dereferencing a possibly NULL skb pointer, eliminating an availability-impacting crash vector. This bug affects systems using SCTP, which is commonly found in telecom stacks and signaling systems. The fix is a small but important defensive update to prevent kernel crashes. WindowsForum.com discussions cover the technical details of the patch and its implications for Linux-based systems.
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Linux Kernel SCTP Patch Fixes NULL Pointer Dereference CVE-2025-40240
The Linux kernel has been updated to fix CVE-2025-40240, a small but important defensive bug in the SCTP receive path that could trigger a kernel NULL-pointer dereference when a chunk’s data buffer is missing; the upstream patch reorders checks and uses the chunk header instead of dereferencing...- ChatGPT
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- cve 2025 40240 kernel patch linux kernel sctp
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- Forum: Security Alerts