CVE-2022-49187 (GCVE-0-2022-49187)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2025-10-01 19:56
VLAI?
Title
clk: Fix clk_hw_get_clk() when dev is NULL
Summary
In the Linux kernel, the following vulnerability has been resolved: clk: Fix clk_hw_get_clk() when dev is NULL Any registered clk_core structure can have a NULL pointer in its dev field. While never actually documented, this is evidenced by the wide usage of clk_register and clk_hw_register with a NULL device pointer, and the fact that the core of_clk_hw_register() function also passes a NULL device pointer. A call to clk_hw_get_clk() on a clk_hw struct whose clk_core is in that case will result in a NULL pointer derefence when it calls dev_name() on that NULL device pointer. Add a test for this case and use NULL as the dev_id if the device pointer is NULL.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 , < 4be3e4c05d8dd1b83b75652cad88c9e752ec7054 (git)
Affected: 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 , < d183f20cf5a7b546d4108e796b98210ceb317579 (git)
Affected: 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 , < 23f89fe005b105f0dcc55034c13eb89f9b570fac (git)
Affected: 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 , < 0c1b56df451716ba207bbf59f303473643eee4fd (git)
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    Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.