CVE - CVE-2022-48636

CVE-ID
CVE-2022-48636	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1 URL:https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1 MISC:https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4 URL:https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4 MISC:https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac URL:https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac MISC:https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1 URL:https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1 MISC:https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6 URL:https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6 MISC:https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70 URL:https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70 MISC:https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d URL:https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d MISC:https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b URL:https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b
Assigning CNA
kernel.org
Date Record Created
20240225	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240225)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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