CVE-2026-89585
- Source
- https://cve.org/CVERecord?id=CVE-2026-89585
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89585.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89585
- Downstream
- Published
- 2026-09-11T19:44:50Z
- Modified
- 2026-09-13T03:47:19Z
- Summary
- auxdisplay: charlcd: cancel backlight work on registration failure
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
auxdisplay: charlcd: cancel backlight work on registration failure
With CONFIG_CHARLCD_BL_FLASH, charlcd_init() schedules bl_work before charlcd_register() calls misc_register(). If registration fails, the caller frees the charlcd object while delayed work still contains its address.
Add charlcd_deinit() to cancel the delayed work and turn the backlight off. Use it for both registration rollback and normal unregistration.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89585.json" }- References
-
- https://git.kernel.org/stable/c/84858671842ae5857b9ed1202b62f9045373dcd1
- https://git.kernel.org/stable/c/e3e3bf40916c1e810df03958cfa7ba6883cdce79
- https://git.kernel.org/stable/c/fe7ba73dde94c5f413b1588cd444b49105015dda
- https://git.kernel.org/stable/c/ff2fb3c1e60cb247ea3e28c0ea0bea81c18f7755
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89585.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89585
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced39f8ea46724efbed3ca021863a22337c31be264cFixedfe7ba73dde94c5f413b1588cd444b49105015ddaFixed84858671842ae5857b9ed1202b62f9045373dcd1Fixedff2fb3c1e60cb247ea3e28c0ea0bea81c18f7755Fixede3e3bf40916c1e810df03958cfa7ba6883cdce79