CVE-2021-46940
- Source
- https://cve.org/CVERecord?id=CVE-2021-46940
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46940.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-46940
- Downstream
- Published
- 2024-02-27T19:04:05Z
- Modified
- 2026-03-15T22:42:41Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tools/power turbostat: Fix offset overflow issue in index converting
The idx_to_offset() function returns type int (32-bit signed), but MSR_PKG_ENERGY_STAT is u32 and would be interpreted as a negative number. The end result is that it hits the if (offset < 0) check in update_msr_sum() which prevents the timer callback from updating the stat in the background when long durations are used. The similar issue exists in offset_to_idx() and update_msr_sum(). Fix this issue by converting the 'int' to 'off_t' accordingly.
- References
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-46940.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "5.10.0"
},
{
"fixed": "5.10.36"
}
]
},
{
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.11.20"
}
]
},
{
"events": [
{
"introduced": "5.12.0"
},
{
"fixed": "5.12.3"
}
]
}
]