CVE-2025-37861: scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue
Vulnerability summary
CVE-2025-37861 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.6% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 38 · Related 33Timeline
- 09-05-2025PublishedVulnerability first disclosed.
- 30-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue When the task management thread processes reply queues while the reset thread resets them, the task management thread accesses an invalid queue ID (0xFFFF), set by the reset thread, which points to unallocated memory, causing a crash. Add flag 'io_admin_reset_sync' to synchronize access between the reset, I/O, and admin threads. Before a reset, the reset handler sets this flag to block I/O and admin processing threads. If any thread bypasses the initial check, the reset thread waits up to 10 seconds for processing to finish. If the wait exceeds 10 seconds, the controller is marked as unrecoverable.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · Red hatEcosystem advisory · calculated6.3MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
26%
Versus all other CVEs
30-day change
Increase +0.04 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu127 products
- linuxAll versions (No fix recorded) | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Redhat70 products
- bpftool< 0:7.3.0-427.113.1.el9_4
- bpftool-debuginfo< 0:7.3.0-427.113.1.el9_4
- kernel< 0:5.14.0-427.113.1.el9_4
- kernel-64k< 0:5.14.0-427.113.1.el9_4
- kernel-64k-core< 0:5.14.0-427.113.1.el9_4
Linux2 products
- linux≥ c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df, < e9efbd037b9002ce9dd012da612e857e98dfcb3e | ≥ c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df, < 31dad8d385953a886e57df70ab43ee25ba37797c | ≥ c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df, < 65ba18c84dbd03afe9b38c06c151239d97a09834 | ≥ c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df, < 8d310d66e2b0f5f9f709764641647e8a3a4924fa | ≥ c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df, < 75b67dca4195e11ccf966a704787b2aa2754a457 | ≥ c4f7ac64616ee513f9ac4ae6c4d8c3cccb6974df, < f195fc060c738d303a21fae146dbf85e1595fb4c | 5.14
- linux_kernel≥ 5.14, < 6.12.24 | ≥ 6.13, < 6.13.12 | ≥ 6.14, < 6.14.3
Debian1 product
- linuxAll versions (No fix recorded) | < 6.12.25-1
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