In the Linux kernel, the following vulnerability has been resolved:
EDAC/thunderx: Fix possible out-of-bounds string access
Enabling -Wstringop-overflow globally exposes a warning for a common bug
in the usage of strncat():
drivers/edac/thunderx_edac.c: In function 'thunderx_ocx_com_threaded_isr':
drivers/edac/thunderx_edac.c:1136:17: error: 'strncat' specified bound 1024 equals destination size [-Werror=stringop-overflow=]
1136 | strncat(msg, other, OCX_MESSAGE_SIZE);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
1145 | strncat(msg, other, OCX_MESSAGE_SIZE);
...
1150 | strncat(msg, other, OCX_MESSAGE_SIZE);
...
Apparently the author of this driver expected strncat() to behave the
way that strlcat() does, which uses the size of the destination buffer
as its third argument rather than the length of the source buffer. The
result is that there is no check on the size of the allocated buffer.
Change it to strlcat().
[ bp: Trim compiler output, fixup commit message. ]
References
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: Linux
Published: 2024-02-23T14:46:24.150Z
Updated: 2024-05-28T19:49:55.603Z
Reserved: 2024-02-20T12:30:33.296Z
Link: CVE-2023-52464
JSON object: View
NVD Information
Status : Modified
Published: 2024-02-23T15:15:08.647
Modified: 2024-06-27T13:15:52.907
Link: CVE-2023-52464
JSON object: View
Redhat Information
No data.
CWE