CVE-2026-45888
In the Linux kernel, the following vulnerability has been resolved: md/raid1: fix memory leak in raid1_run() raid1_run() calls setup_conf() which registers a thread via md_register_thread().
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1: fix memory leak in raid1_run() raid1_run() calls setup_conf() which registers a thread via md_register_thread(). If raid1_set_limits() fails, the previously registered thread is not unregistered, resulting in a memory leak of the md_thread structure and the thread resource itself. Add md_unregister_thread() to the error path to properly cleanup the thread, which aligns with the error handling logic of other paths in this function. Compile tested only. Issue found using a prototype static analysis tool and code review.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.16% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/6abc7d5dcf0ee0f85e16e41c87fbd06231f28753Patch
- https://git.kernel.org/stable/c/b37588b0282a2b3cdda9db1d53712745ce66dea0Patch
- https://git.kernel.org/stable/c/c94fd6e8a71efd047ff36930e840f3c25679e136Patch
- https://git.kernel.org/stable/c/ec10e3dc93994b87adf7c759a4639fe34013989aPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.