CVE-2023-52664 Information

Description

In the Linux kernel the following vulnerability has been resolved:

net: atlantic: eliminate double free in error handling logic

Driver has a logic leak in ring data allocation/free where aq_ring_free could be called multiple times on same ring if system is under stress and got memory allocation error.

Ring pointer was used as an indicator of failure but this is not correct since only ring data is allocated/deallocated. Ring itself is an array member.

Changing ring allocation functions to return error code directly. This simplifies error handling and eliminates aq_ring_free on higher layer.

Reference

https://git.kernel.org/stable/c/0edb3ae8bfa31cd544b0c195bdec00e036002b5d https://git.kernel.org/stable/c/c11a870a73a3bc4cc7df6dd877a45b181795fcbf https://git.kernel.org/stable/c/d1fde4a7e1dcc4d49cce285107a7a43c3030878d https://git.kernel.org/stable/c/b3cb7a830a24527877b0bc900b9bd74a96aea928