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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-50280 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: dm cache: fix flushing uninitialized delayed_work on cache_ctr error An unexpected WARN_ON from flush_work() may occur when cache creation fails, caused by destroying the uninitialized delayed_work waker in the error path of cache_create(). For example, the warning appears on the superblock checksum error. Reproduce steps: dmsetup create cmeta --table "0 8192 linear /dev/sdc 0" dmsetup create cdata --table "0 65536 linear /dev/sdc 8192" dmsetup create corig --table "0 524288 linear /dev/sdc 262144" dd if=/dev/urandom of=/dev/mapper/cmeta bs=4k count=1 oflag=direct dmsetup create cache --table "0 524288 cache /dev/mapper/cmeta \ /dev/mapper/cdata /dev/mapper/corig 128 2 metadata2 writethrough smq 0" Kernel logs: (snip) WARNING: CPU: 0 PID: 84 at kernel/workqueue.c:4178 __flush_work+0x5d4/0x890 Fix by pulling out the cancel_delayed_work_sync() from the constructor's error path. This patch doesn't affect the use-after-free fix for concurrent dm_resume and dm_destroy (commit 6a459d8edbdb ("dm cache: Fix UAF in destroy()")) as cache_dtr is not changed.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
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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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/135496c208ba26fd68cdef10b64ed7a91ac9a7ff kernel.org Patch 
https://git.kernel.org/stable/c/40fac0271c7aedf60d81ed8214e80851e5b26312 kernel.org
https://git.kernel.org/stable/c/5a754d3c771280f2d06bf8ab716d6a0d36ca256e kernel.org Patch 
https://git.kernel.org/stable/c/8cc12dab635333c4ea28e72d7b947be7d0543c2c kernel.org Patch 
https://git.kernel.org/stable/c/aee3ecda73ce13af7c3e556383342b57e6bd0718 kernel.org Patch 
https://git.kernel.org/stable/c/d154b333a5667b6c1b213a11a41ad7aaccd10c3d kernel.org
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html CVE
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html CVE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free CISA-ADP  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-50280
NVD Published Date:
11/18/2024
NVD Last Modified:
11/03/2025
Source:
kernel.org