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CVE-2021-47289 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ACPI: fix NULL pointer dereference Commit 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()") started doing "acpi_dev_put()" on a pointer that was possibly NULL. That fails miserably, because that helper inline function is not set up to handle that case. Just make acpi_dev_put() silently accept a NULL pointer, rather than calling down to put_device() with an invalid offset off that NULL pointer.


Severity



CVSS 4.0 Severity and Metrics:

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


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

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Hyperlink Resource
https://git.kernel.org/stable/c/38f54217b423c0101d03a00feec6fb8ec608b12e
https://git.kernel.org/stable/c/cae3fa3d8165761f3000f523b11cfa1cd35206bc
https://git.kernel.org/stable/c/ccf23a0888077a25a0793a746c3941db2a7562e4
https://git.kernel.org/stable/c/fc68f42aa737dc15e7665a4101d4168aadb8e4c4

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47289
NVD Published Date:
05/21/2024
NVD Last Modified:
05/21/2024
Source:
kernel.org