CVE-2024-50277

dm: fix a crash if blk_alloc_disk fails

CVE-2024-50277 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-50277, released November 19, 2024. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

4.7

medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0019

8th percentile

In the Linux kernel, the following vulnerability has been resolved: dm: fix a crash if blk_alloc_disk fails If blk_alloc_disk fails, the variable md->disk is set to an error value. cleanup_mapped_device will see that md->disk is non-NULL and it will attempt to access it, causing a crash on this statement "md->disk->private_data = NULL;".

Where it's fixed

Product	Fixed in	Fix	Released
Linux
linux · Debian 13.5 (trixie)	6.11.9-1	DEBIAN-CVE-2024-50277	Nov 19, 2024
linux · Debian 14	6.11.9-1	DEBIAN-CVE-2024-50277	Nov 19, 2024

Details

Published
November 19, 2024
Weakness
NULL Pointer Dereference
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-50277

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