Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 61cda2777b07d27459f5cac5a047c3edf9c8a1a9; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 08165c296597075763130919f2aae59b5822f016; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196f; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before cb9055ba30306ede4ad920002233d0659982f1cb; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 7a832b0f99be19df608cb75c023f8027b1789bd1; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 89b465b54227c245ddc7cc9ed822231af21123ef; affected 90017accff61ae89283ad9a51f9ac46ca01633fb before 441f0647f7673e0e64d4910ef61a5fb8f16bfb82 |
| Linux / Linux | affected 4.8; unaffected 0 before 4.8; unaffected 5.4.301 through 5.4.*; unaffected 5.10.246 through 5.10.*; unaffected 5.15.196 through 5.15.*; unaffected 6.1.158 through 6.1.*; unaffected 6.6.115 through 6.6.*; unaffected 6.12.56 through 6.12.*; unaffected 6.17.6 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/61cda2777b07d27459f5cac5a047c3edf9c8a1a9
- https://git.kernel.org/stable/c/08165c296597075763130919f2aae59b5822f016
- https://git.kernel.org/stable/c/03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196f
- https://git.kernel.org/stable/c/4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71
- https://git.kernel.org/stable/c/cb9055ba30306ede4ad920002233d0659982f1cb
- https://git.kernel.org/stable/c/7a832b0f99be19df608cb75c023f8027b1789bd1
- https://git.kernel.org/stable/c/89b465b54227c245ddc7cc9ed822231af21123ef
- https://git.kernel.org/stable/c/441f0647f7673e0e64d4910ef61a5fb8f16bfb82
ADP enrichment
No English description supplied.
No references supplied.