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CVE-2022-48636 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.


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.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1
https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4
https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac
https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1
https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6
https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70
https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d
https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b

Weakness Enumeration

CWE-ID CWE Name Source

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-48636
NVD Published Date:
04/28/2024
NVD Last Modified:
04/29/2024
Source:
kernel.org