PT-2025-20357 · Linux+4 · Linux Kernel+4

Published

2025-04-09

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Updated

2026-04-20

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CVE-2025-37828

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A race condition can occur between the MCQ completion path and the abort handler in the Linux kernel. Once a request completes, blk mq free request() sets rq->mq hctx to NULL, meaning the subsequent ufshcd mcq req to hwq() call in ufshcd mcq abort() can return a NULL pointer. If this NULL pointer is dereferenced, the kernel will crash. A NULL check has been added for the returned hwq pointer to prevent a potential NULL-pointer dereference.
Recommendations As a temporary workaround, consider disabling the ufshcd mcq abort() function until a patch is available. Restrict access to the ufshcd mcq req to hwq() function to minimize the risk of exploitation. Avoid using the rq->mq hctx variable in the affected code path until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-12146
CVE-2025-37828
MGASA-2025-0182
MGASA-2025-0183
OESA-2025-2765
OESA-2025-2766
OESA-2025-2767
USN-7594-1
USN-7594-2
USN-7594-3
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Astra Linux
Linuxmint
Linux Kernel
Red Os
Ubuntu