Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 before 4be3e4c05d8dd1b83b75652cad88c9e752ec7054; affected 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 before d183f20cf5a7b546d4108e796b98210ceb317579; affected 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 before 23f89fe005b105f0dcc55034c13eb89f9b570fac; affected 30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2 before 0c1b56df451716ba207bbf59f303473643eee4fd |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.15.33 through 5.15.*; unaffected 5.16.19 through 5.16.*; unaffected 5.17.2 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4be3e4c05d8dd1b83b75652cad88c9e752ec7054
- https://git.kernel.org/stable/c/d183f20cf5a7b546d4108e796b98210ceb317579
- https://git.kernel.org/stable/c/23f89fe005b105f0dcc55034c13eb89f9b570fac
- https://git.kernel.org/stable/c/0c1b56df451716ba207bbf59f303473643eee4fd
ADP enrichment
No English description supplied.
No references supplied.