CVE-2022-49612
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49612
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49612.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49612
- Related
- Published
- 2025-02-26T07:01:36Z
- Modified
- 2025-02-26T07:01:36Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
power: supply: core: Fix boundary conditions in interpolation
The functions powersupplytemp2resistsimple and powersupplyocv2capsimple handle boundary conditions incorrectly. The change was introduced in a4585ba2050f460f749bbaf2b67bd56c41e30283 ("power: supply: core: Use library interpolation"). There are two issues: First, the lines "high = i - 1" and "high = i" in ocv2cap have the wrong order compared to temp2resist. As a consequence, ocv2cap sets high=-1 if ocv>table[0].ocv, which causes an out-of-bounds read. Second, the logic of temp2resist is also not correct. Consider the case table[] = {{20, 100}, {10, 80}, {0, 60}}. For temp=5, we expect a resistance of 70% by interpolation. However, temp2resist sets high=low=2 and returns 60.
- References
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source