Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: cpufreq: initialize policy rwsem before sysfs publication cpufreq_policy_alloc() initializes policy->rwsem after kobject_init_and_add() has created the policy sysfs directory and its default attributes. A sysfs access can therefore reach a policy callback before the semaphore has been initialized. Initialize policy->rwsem before publishing the policy kobject so sysfs callbacks always see an initialized semaphore.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before c9d8435814f2ac533c40fe3f35d94235bc3a9443; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before 82a54923700da5de83ce2b26c0b43f6b5005c8f1; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before b14987a0f73777644099f47f01aba3b0f9dc6c27; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before dc11263cb05ed519758fd135fe08d611bad1f241; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before 27c9b491bf7604e83b50c3bbfa18a30266ff345f; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before 2cee937f779f69b195b37bbec1e888da9bfe9d58; affected 2fc3384dc75bf7333384c7a16d12c796f61c3f56 before 3e5d1bf4bd687beb2cb4e32a07af695455925588 |
| Linux / Linux | affected 4.2; unaffected 0 before 4.2; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c9d8435814f2ac533c40fe3f35d94235bc3a9443
- https://git.kernel.org/stable/c/82a54923700da5de83ce2b26c0b43f6b5005c8f1
- https://git.kernel.org/stable/c/b14987a0f73777644099f47f01aba3b0f9dc6c27
- https://git.kernel.org/stable/c/b22193eea2ce32c39dda5e09f9c2be2f3fd7eb4a
- https://git.kernel.org/stable/c/dc11263cb05ed519758fd135fe08d611bad1f241
- https://git.kernel.org/stable/c/27c9b491bf7604e83b50c3bbfa18a30266ff345f
- https://git.kernel.org/stable/c/2cee937f779f69b195b37bbec1e888da9bfe9d58
- https://git.kernel.org/stable/c/3e5d1bf4bd687beb2cb4e32a07af695455925588