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CVE-2024-27027 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: dpll: fix dpll_xa_ref_*_del() for multiple registrations Currently, if there are multiple registrations of the same pin on the same dpll device, following warnings are observed: WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:143 dpll_xa_ref_pin_del.isra.0+0x21e/0x230 WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:223 __dpll_pin_unregister+0x2b3/0x2c0 The problem is, that in both dpll_xa_ref_dpll_del() and dpll_xa_ref_pin_del() registration is only removed from list in case the reference count drops to zero. That is wrong, the registration has to be removed always. To fix this, remove the registration from the list and free it unconditionally, instead of doing it only when the ref reference counter reaches zero.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/769324eb35143462542cdb15483cdaf4877bf661
https://git.kernel.org/stable/c/769324eb35143462542cdb15483cdaf4877bf661
https://git.kernel.org/stable/c/b27e32e9367dac024cd6f61f22655714f483fd67
https://git.kernel.org/stable/c/b27e32e9367dac024cd6f61f22655714f483fd67
https://git.kernel.org/stable/c/b446631f355ece73b13c311dd712c47381a23172
https://git.kernel.org/stable/c/b446631f355ece73b13c311dd712c47381a23172

Weakness Enumeration

CWE-ID CWE Name Source

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-27027
NVD Published Date:
05/01/2024
NVD Last Modified:
11/21/2024
Source:
kernel.org