CVE-2022-49460

PM / devfreq: rk3399_dmc: Disable edev on remove()

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 02:13 AM UTC

Updated: June 17, 2026 at 05:18 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

Description

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: rk3399_dmc: Disable edev on remove() Otherwise we hit an unablanced enable-count when unbinding the DFI device: [ 1279.659119] ------------[ cut here ]------------ [ 1279.659179] WARNING: CPU: 2 PID: 5638 at drivers/devfreq/devfreq-event.c:360 devfreq_event_remove_edev+0x84/0x8c ... [ 1279.659352] Hardware name: Google Kevin (DT) [ 1279.659363] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [ 1279.659371] pc : devfreq_event_remove_edev+0x84/0x8c [ 1279.659380] lr : devm_devfreq_event_release+0x1c/0x28 ... [ 1279.659571] Call trace: [ 1279.659582] devfreq_event_remove_edev+0x84/0x8c [ 1279.659590] devm_devfreq_event_release+0x1c/0x28 [ 1279.659602] release_nodes+0x1cc/0x244 [ 1279.659611] devres_release_all+0x44/0x60 [ 1279.659621] device_release_driver_internal+0x11c/0x1ac [ 1279.659629] device_driver_detach+0x20/0x2c [ 1279.659641] unbind_store+0x7c/0xb0 [ 1279.659650] drv_attr_store+0x2c/0x40 [ 1279.659663] sysfs_kf_write+0x44/0x58 [ 1279.659672] kernfs_fop_write_iter+0xf4/0x190 [ 1279.659684] vfs_write+0x2b0/0x2e4 [ 1279.659693] ksys_write+0x80/0xec [ 1279.659701] __arm64_sys_write+0x24/0x30 [ 1279.659714] el0_svc_common+0xf0/0x1d8 [ 1279.659724] do_el0_svc_compat+0x28/0x3c [ 1279.659738] el0_svc_compat+0x10/0x1c [ 1279.659746] el0_sync_compat_handler+0xa8/0xcc [ 1279.659758] el0_sync_compat+0x188/0x1c0 [ 1279.659768] ---[ end trace cec200e5094155b4 ]---

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.20 ≤ v < 5.4.1984.9 ≤ v < 4.19.2474.9 ≤ v < 5.10.1214.9 ≤ v < 5.15.464.9 ≤ v < 5.17.144.9 ≤ v < 5.18.34.9 ≤ v < 5.194.9 ≤ v < 5.4.1985.11 ≤ v < 5.15.465.16 ≤ v < 5.17.145.18 ≤ v < 5.18.35.5 ≤ v < 5.10.1214.95a893e31a636cca3798af2db5aee8d3d144b1e1e

Vendor states this is fixed in 2fccf9e6050e0e3b8b4cd275d41daf7f7fa22804 (fixed)

Vendor states this is fixed in 664736e2cc09e504ce58ec61164d029d1f2651bb (fixed)

Vendor states this is fixed in 86b091b6894c449d2734de7aa7d79ccb33ffd97d (fixed)

Vendor states this is fixed in a0180e324a9a63de8f770da300477b48cb4a53f1 (fixed)

Vendor states this is fixed in a9c2b23a7ac6ab19214cad8cac8af8608a4d9cef (fixed)

Vendor states this is fixed in cb1be1d4be18fe286ba5a67d928598378fd7fbe5 (fixed)

Vendor states this is fixed in fb089b6f21de03a685dd31df3789bbb01c59f8e3 (fixed)

Vendor states this is fixed in 4.19.247 (unaffected)

Vendor states this is fixed in 4.9 (unaffected)

Vendor states this is fixed in 5.10.121 (unaffected)

Vendor states this is fixed in 5.15.46 (unaffected)

Vendor states this is fixed in 5.17.14 (unaffected)