CVE-2024-46741 Details
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.
A double free vulnerability has been identified in the Linux kernel's FastRPC (Fast Remote Procedure Call) implementation, specifically within the buffer management routine. This issue arises in the 'fastrpc_req_mmap' function, where the FastRPC buffer is improperly freed twice under certain error conditions. The vulnerability affects the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been patched. Instructions for downloading the updated kernel can be found on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 29, 2024References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/4753cc37b6606ef9a7ec22861d380d45e2707f9a | kernel.org | |
| https://git.kernel.org/stable/c/bfc1704d909dc9911a558b1a5833d3d61a43a1f2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e8c276d4dc0e19ee48385f74426aebc855b49aaf | kernel.org | Patch |
| https://git.kernel.org/stable/c/f77dc8a75859e559f3238a6d906206259227985e | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-415 | Double Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.2, < 6.6.51 >= 6.7, < 6.10.10 6.11 rc1 6.11 rc2 6.11 rc3 6.11 rc4 6.11 rc5 6.11 rc6 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 27, 2026 | CVE Modified | kernel.org |
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Sep 20, 2024 | Initial Analysis | [email protected] |
| Sep 18, 2024 | New CVE Received | kernel.org |