CVE-2022-49421

video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 02:12 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: video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

Affected

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

Linux Kernel · Linux

95%

3.17 ≤ v < 4.14.2833.17 ≤ v < 4.19.2473.17 ≤ v < 4.9.3183.17 ≤ v < 5.10.1213.17 ≤ v < 5.15.463.17 ≤ v < 5.17.143.17 ≤ v < 5.18.33.17 ≤ v < 5.193.17 ≤ v < 5.4.1984.10 ≤ v < 4.14.2834.15 ≤ v < 4.19.2474.20 ≤ v < 5.4.1985.11 ≤ v < 5.15.465.16 ≤ v < 5.17.145.18 ≤ v < 5.18.35.5 ≤ v < 5.10.1213.17d10715be03bd8bad59ddc50236cb140c3bd73c7b

Vendor states this is fixed in 2e2e2c71b2642289438392edbf5d08cdbc0b138b (fixed)

Vendor states this is fixed in 38d245cebf545338a6bc1c7762023de3fbecd7b7 (fixed)

Vendor states this is fixed in 51eb1bb6baeb478538dd4ec6459fd68c44a855b1 (fixed)

Vendor states this is fixed in 6c92711db7c90f78e0b67ac2a8944d0fe7e12d83 (fixed)

Vendor states this is fixed in 8db59df7f5826e104db82cfddbf22a33a151193e (fixed)

Vendor states this is fixed in b23789a59fa6f00e98a319291819f91fbba0deb8 (fixed)

Vendor states this is fixed in bbb2a24e863b6a10129546a0a4ceea2f07deec39 (fixed)

Vendor states this is fixed in c1c4405222b6fc98c16e8c2aa679c14e41d81465 (fixed)

Vendor states this is fixed in f2dfb4ab887d67be7d0892ba041d3c8d738d3356 (fixed)

Vendor states this is fixed in 3.17 (unaffected)

Vendor states this is fixed in 4.14.283 (unaffected)

Vendor states this is fixed in 4.19.247 (unaffected)