In the Linux kernel, the following vulnerability has been resolved:
scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()
A race can occur between the MCQ completion path and the abort handler:
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.
Add a NULL check for the returned hwq pointer. If hwq is NULL, log an
error and return FAILED, preventing a potential NULL-pointer
dereference. As suggested by Bart, the ufshcd_cmd_inflight() check is
removed.
This is similar to the fix in commit 74736103fb41 ("scsi: ufs: core: Fix
ufshcd_abort_one racing issue").
This is found by our static analysis tool KNighter.
Metrics
Affected Vendors & Products
References
History
Tue, 15 Jul 2025 13:45:00 +0000
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Fri, 09 May 2025 02:15:00 +0000
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threat_severity
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cvssV3_1
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Thu, 08 May 2025 06:45:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort() A race can occur between the MCQ completion path and the abort handler: 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. Add a NULL check for the returned hwq pointer. If hwq is NULL, log an error and return FAILED, preventing a potential NULL-pointer dereference. As suggested by Bart, the ufshcd_cmd_inflight() check is removed. This is similar to the fix in commit 74736103fb41 ("scsi: ufs: core: Fix ufshcd_abort_one racing issue"). This is found by our static analysis tool KNighter. | |
Title | scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-26T05:21:45.612Z
Reserved: 2025-04-16T04:51:23.950Z
Link: CVE-2025-37828

No data.

Status : Awaiting Analysis
Published: 2025-05-08T07:15:54.033
Modified: 2025-05-08T14:39:09.683
Link: CVE-2025-37828


No data.