CVE-2026-45926 - rust: pwm: Fix potential memory leak on init error

MEDIUM

rust: pwm: Fix potential memory leak on init error

Published May 27, 2026

5.5

MEDIUM

CVSS 3.1

EPSS 0.14%

When initializing a PWM chip using pwmchip_alloc(), the allocated device owns an initial reference that must be released on all error paths.

If __pinned_init() were to fail, the allocated pwm_chip would currently leak because the error path returns without calling pwmchip_put().

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

unaffected

Version	Status	Constraints
	affected
	affected

affected

Product	Package	State	Advisory
Red Hat Enterprise Linux 10	kernel	Not affected	n/a
Red Hat Enterprise Linux 6	kernel	Not affected	n/a
Red Hat Enterprise Linux 7	kernel	Not affected	n/a
Red Hat Enterprise Linux 7	kernel-rt	Not affected	n/a
Red Hat Enterprise Linux 8	kernel	Not affected	n/a
Red Hat Enterprise Linux 8	kernel-rt	Not affected	n/a
Red Hat Enterprise Linux 9	kernel	Not affected	n/a
Red Hat Enterprise Linux 9	kernel-rt	Not affected	n/a

No remediation recorded yet.

Weaknesses (2)

CWE-401

CWE-772

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2026-45926		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2482049		Issue Tracking
https://git.kernel.org/stable/c/a2633dc243c35754a0c2270131d8a199c987c9bf		Patch
https://git.kernel.org/stable/c/baa8b7097d9cc68ff85819cf683972a58c2ce32b		Patch
https://lore.kernel.org/linux-cve-announce/2026052725-CVE-2026-45926-cc92@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-45926
https://www.cve.org/CVERecord?id=CVE-2026-45926