CVE-2022-49187
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49187
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49187.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49187
- Related
- Published
- 2025-02-26T07:00:55Z
- Modified
- 2025-03-14T20:57:56Z
- 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:
clk: Fix clkhwget_clk() when dev is NULL
Any registered clkcore structure can have a NULL pointer in its dev field. While never actually documented, this is evidenced by the wide usage of clkregister and clkhwregister with a NULL device pointer, and the fact that the core ofclkhw_register() function also passes a NULL device pointer.
A call to clkhwgetclk() on a clkhw struct whose clkcore is in that case will result in a NULL pointer derefence when it calls devname() on that NULL device pointer.
Add a test for this case and use NULL as the dev_id if the device pointer is NULL.
- References
-
- https://git.kernel.org/stable/c/0c1b56df451716ba207bbf59f303473643eee4fd
- https://git.kernel.org/stable/c/23f89fe005b105f0dcc55034c13eb89f9b570fac
- https://git.kernel.org/stable/c/4be3e4c05d8dd1b83b75652cad88c9e752ec7054
- https://git.kernel.org/stable/c/d183f20cf5a7b546d4108e796b98210ceb317579
- https://security-tracker.debian.org/tracker/CVE-2022-49187
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