CVE-2022-49634
Severity CVSS v4.0:
Pending analysis
Type:
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
26/02/2025
Last modified:
01/10/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
sysctl: Fix data-races in proc_dou8vec_minmax().<br />
<br />
A sysctl variable is accessed concurrently, and there is always a chance<br />
of data-race. So, all readers and writers need some basic protection to<br />
avoid load/store-tearing.<br />
<br />
This patch changes proc_dou8vec_minmax() to use READ_ONCE() and<br />
WRITE_ONCE() internally to fix data-races on the sysctl side. For now,<br />
proc_dou8vec_minmax() itself is tolerant to a data-race, but we still<br />
need to add annotations on the other subsystem&#39;s side.
Impact
Base Score 3.x
4.70
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.13 (including) | 5.15.56 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.16 (including) | 5.18.13 (excluding) |
| cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page