VDB
DEBIAN-CVE-2025-40240
DEBIAN-CVE-2025-40240
PUBLISHED
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.
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 6.12.57-1~bpo12+1, 0, 6.12.38-1 |
| Debian:11 | linux | 5.10.221-1, 5.10.218-1, 5.10.216-1 |
| Debian:14 | linux | 6.12.43-1, 6.12.73-1, * |
| Debian:12 | linux | 6.1.38-4, 6.1.148-1, 6.1.69-1 |
Exploit Intelligence
- 4081.3.7.yml (github-poc)
Timeline
- Dec 4, 2025 CVE Published
- Apr 28, 2026 CVE Updated