CVE-2026-98128
Published: September 29, 2026Last modified: October 6, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.189-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/040146f81d099006a354b0caacc7f01ca00f257e
- https://git.kernel.org/stable/c/06a7073b33b8f5cb0ee71e07dc669efffb1c7d58
- https://git.kernel.org/stable/c/1ccbe8c42009706af79e6629c70d42fc929aef2b
- https://git.kernel.org/stable/c/419d129f970aaa6567dbac366b0c93784bf9ec97
- https://git.kernel.org/stable/c/58e3d2fbc8c914ed3dce2f7d915b3c4f4a3c76fb
- https://git.kernel.org/stable/c/60a9aaac07f6470b252c4de40e7d8a6e25004093