Description
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix target device refcount leak in mpi3mr_sas_port_add() mpi3mr_get_tgtdev_by_addr() increments the target device kref when it returns a device. If a subsequent error triggers a goto out_fail after the tgtdev reference is acquired, the reference is never released because the out_fail path does not call mpi3mr_tgtdev_put(). This prevents the target device structure from ever being freed. Add a tgtdev put in the out_fail path, guarded by a NULL check since tgtdev is only acquired for SAS_END_DEVICE types and the same cleanup path is shared by earlier error cases where tgtdev is still NULL.
Affected products
linux: linux kernel
References6
- git.kernel.org/stable/c/040146f81d099006a354b0caacc7f01ca00f257e Patch
- git.kernel.org/stable/c/06a7073b33b8f5cb0ee71e07dc669efffb1c7d58 Patch
- git.kernel.org/stable/c/1ccbe8c42009706af79e6629c70d42fc929aef2b Patch
- git.kernel.org/stable/c/419d129f970aaa6567dbac366b0c93784bf9ec97 Patch
- git.kernel.org/stable/c/58e3d2fbc8c914ed3dce2f7d915b3c4f4a3c76fb Patch
- git.kernel.org/stable/c/60a9aaac07f6470b252c4de40e7d8a6e25004093 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 9 November 2026
- CWE
- CWE-401
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