CVE-2024-46741

HIGH

Linux Kernel 6.2-6.6.50 - Use-After-Free in fastrpc_req_mmap Error Path

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix double free of 'buf' in error path smatch warning: drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of 'buf' In fastrpc_req_mmap() error path, the fastrpc buffer is freed in fastrpc_req_munmap_impl() if unmap is successful. But in the end, there is an unconditional call to fastrpc_buf_free(). So the above case triggers the double free of fastrpc buf.

Scores

CVSS v3 7.8
EPSS 0.0025
EPSS Percentile 15.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-415
Status published
Products (12)
linux/Kernel 6.2.0 - 6.6.51linux
linux/Kernel 6.7.0 - 6.10.10linux
Linux/Linux < 6.2
Linux/Linux 6.10.10 - 6.10.*
Linux/Linux 6.11
Linux/Linux 6.2
Linux/Linux 6.6.51 - 6.6.*
Linux/Linux 72fa6f7820c4cf96c5f7aabc4e54bdf52d1e2ac2 - bfc1704d909dc9911a558b1a5833d3d61a43a1f2
Linux/Linux 72fa6f7820c4cf96c5f7aabc4e54bdf52d1e2ac2 - e8c276d4dc0e19ee48385f74426aebc855b49aaf
Linux/Linux 72fa6f7820c4cf96c5f7aabc4e54bdf52d1e2ac2 - f77dc8a75859e559f3238a6d906206259227985e
... and 2 more
Published Sep 18, 2024
Tracked Since Feb 18, 2026