CVE-2021-47525

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

serial: liteuart: fix use-after-free and memleak on unbind

Deregister the port when unbinding the driver to prevent it from being used after releasing the driver data and leaking memory allocated by serial core.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
May 24, 2024
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-475265.5In the Linux kernel, the following vulnerability has been resolved: serial: liteuart: Fix NULL pointer dereference in ->remove() drvdata hCVE-2021-475275.5In the Linux kernel, the following vulnerability has been resolved: serial: core: fix transmit-buffer reset and memleak Commit 761ed4a9458CVE-2021-475285.5In the Linux kernel, the following vulnerability has been resolved: usb: cdnsp: Fix a NULL pointer dereference in cdnsp_endpoint_init() InCVE-2021-475295.5In the Linux kernel, the following vulnerability has been resolved: iwlwifi: Fix memory leaks in error handling path Should an error occurCVE-2021-475305.5In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix wait_fence submitqueue leak We weren't dropping the submiCVE-2021-475315.5In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix mmap to include VM_IO and VM_DONTDUMP In commit 510410bfcCVE-2021-475325.5In the Linux kernel, the following vulnerability has been resolved: drm/msm/devfreq: Fix OPP refcnt leakCVE-2021-475337.8In the Linux kernel, the following vulnerability has been resolved: drm/vc4: kms: Clear the HVS FIFO commit pointer once done Commit 9ec03CVE-2021-475344.1In the Linux kernel, the following vulnerability has been resolved: drm/vc4: kms: Add missing drm_crtc_commit_put Commit 9ec03d7f1ed3 ("drCVE-2021-475357.8In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Allocate enough space for GMU registers In commit 142639CVE-2021-475367.8In the Linux kernel, the following vulnerability has been resolved: net/smc: fix wrong list_del in smc_lgr_cleanup_early smc_lgr_cleanup_eCVE-2021-475375.5In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Fix a memleak bug in rvu_mbox_init() In rvu_mbox_init(),
CVE-2021-47525: High severity, CVSS 7.8 | Vulnix