CVE-2023-52664
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.27% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0edb3ae8bfa31cd544b0c195bdec00e036002b5dPatch
- https://git.kernel.org/stable/c/b3cb7a830a24527877b0bc900b9bd74a96aea928Patch
- https://git.kernel.org/stable/c/c11a870a73a3bc4cc7df6dd877a45b181795fcbfPatch
- https://git.kernel.org/stable/c/d1fde4a7e1dcc4d49cce285107a7a43c3030878dPatch
- https://git.kernel.org/stable/c/0edb3ae8bfa31cd544b0c195bdec00e036002b5dPatch
- https://git.kernel.org/stable/c/b3cb7a830a24527877b0bc900b9bd74a96aea928Patch
- https://git.kernel.org/stable/c/c11a870a73a3bc4cc7df6dd877a45b181795fcbfPatch
- https://git.kernel.org/stable/c/d1fde4a7e1dcc4d49cce285107a7a43c3030878dPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.