CVE-2025-37828

scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()

MEDIUM
5.5
CVSS Score
Published: May 8, 2025 at 06:26 AM UTC
Updated: June 17, 2026 at 09:15 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13 ≤ v < 6.14.56.5 ≤ v < 6.12.266.5 ≤ v < 6.14.56.5 ≤ v < 6.156.5 ≤ v < 6.6.896.7 ≤ v < 6.12.266.15 rc16.15 rc26.15 rc36.5f1304d4420777f82a1d844c606db3d9eca841765
Vendor states this is fixed in 47eec518aef3814f64a5da43df81bdd74d8c0041 (fixed)
Vendor states this is fixed in 4c324085062919d4e21c69e5e78456dcec0052fe (fixed)
Vendor states this is fixed in 7d002f591486f5ef4bc02eb02025a53f931f0eb5 (fixed)
Vendor states this is fixed in d6979fabe812a168d5053e5a41d5a2e9b8afd7bf (fixed)
Vendor states this is fixed in 6.12.26 (unaffected)
Vendor states this is fixed in 6.14.5 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.89 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/47eec518aef3814f64a5da43df81bdd74d8c0041
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4c324085062919d4e21c69e5e78456dcec0052fe
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7d002f591486f5ef4bc02eb02025a53f931f0eb5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d6979fabe812a168d5053e5a41d5a2e9b8afd7bf

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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