Medium 5.5Published May 20, 2025

CVE-2025-37980block: fix resource leak in blk_register_queue() error path

Updated under an hour ago (Oct 27, 2026, 12:20 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: block: fix resource leak in blk_register_queue() error path When registering a queue fails after blk_mq_sysfs_register() is successful but the function later encounters an error, we need to clean up the blk_mq_sysfs resources. Add the missing blk_mq_sysfs_unregister() call in the error path to properly clean up these resources and prevent a memory leak.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	320ae51feed5c2f13664aa05a76bec198967e04d builds before 6af6d5feebf9423ab3b252831d1f52de31a8b5e0; from 320ae51feed5c2f13664aa05a76bec198967e04d before 549cbbd14bbec12469ceb279b79c763c8a24224e; 320ae51feed5c2f13664aa05a76bec198967e04d builds before 41e43134ddda35949974be40520460a12dda3502; 320ae51feed5c2f13664aa05a76bec198967e04d builds before 55a7bb2708f7c7c5b366d4e40916113168a3824c; 320ae51feed5c2f13664aa05a76bec198967e04d builds before 40f2eb9b531475dd01b683fdaf61ca3cfd03a51e	CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)	from V3.1.6	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.13 before 6.6.88; from 6.7 before 6.12.25; from 6.13 before 6.14.4; 6.15; 6.15	NVD

References

References

https://git.kernel.org/stable/c/6af6d5feebf9423ab3b252831d1f52de31a8b5e0
https://git.kernel.org/stable/c/549cbbd14bbec12469ceb279b79c763c8a24224e	patch
https://git.kernel.org/stable/c/41e43134ddda35949974be40520460a12dda3502	patch
https://git.kernel.org/stable/c/55a7bb2708f7c7c5b366d4e40916113168a3824c	patch
https://git.kernel.org/stable/c/40f2eb9b531475dd01b683fdaf61ca3cfd03a51e	patch
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-457936.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.