CVE-2022-50522 [Low] | Information Disclosure in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: mcb: mcb-parse: fix error handing in chameleon_parse_gdd() If mcb_device_register() returns error in chameleon_parse_gdd(), the refcount of bus and device name are leaked. Fix this by calling put_device() to give up the reference, so they can be released in mcb_release_dev() and kobject_cleanup().

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-10-08	—	0.03%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-10-08

—

0.03%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
3.3	3.1	LOW	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	1.8	1.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

3.3

3.1

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

1.8

1.4

[email protected]

OS Trackers for CVE-2022-50522

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2022-50522 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-50522
`redhat`	—	—	https://access.redhat.com/security/cve/CVE-2022-50522
`suse`	medium	CVE-2022-50522 severity moderate: SUSE including 26 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 276 product×package rows across 54 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Availability Extension 15 SP7, … (54 product lines)): Known Not Affected 276.	https://www.suse.com/security/cve/CVE-2022-50522/
`ubuntu`	medium	CVE-2022-50522 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1414 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): DNE 1017, ignored 160, released 150, not-affected 82, needed 4, needs-triage 1.	https://ubuntu.com/security/CVE-2022-50522

Affected software / configurations for CVE-2022-50522

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 3.15, < 4.9.337	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 4.10, < 4.14.303	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 4.15, < 4.19.270	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 4.20, < 5.4.229	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.5, < 5.10.163	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.11, < 5.15.86	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 6.0.16	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.1, < 6.1.2	cpe:2.3:o:linux:linux_kernel::::::::

References for CVE-2022-50522

URL	Tags
https://git.kernel.org/stable/c/110dc34c9fa33d37f55b394b1199ea6c0ad1ee84	Patch
https://git.kernel.org/stable/c/43bfc7c2402a22d3b4eb08c040f274ba2b76461a	Patch
https://git.kernel.org/stable/c/4a9f1a8b3af287581ffb690d0e1593c681729ddb	Patch
https://git.kernel.org/stable/c/728ac3389296caf68638628c987aeae6c8851e2d	Patch
https://git.kernel.org/stable/c/7b289b791a59386dc23a00d3cf17a0db984b40d3	Patch
https://git.kernel.org/stable/c/891f606ae0765bc9ca99f5276735be4d338f0255	Patch
https://git.kernel.org/stable/c/b948baa29394ec5f4e6ec28486e7d06a76caee91	Patch
https://git.kernel.org/stable/c/cf6e70c0ced50b52415ac0c88eba1fb09c500a5a	Patch
https://git.kernel.org/stable/c/fd85ece416fd7edb945203e59d4cd94952f77e7c	Patch

URL

CVE-2022-50522 | mcb: mcb-parse: fix error handing in chameleon_parse_gdd()

Exploit prediction scoring system (EPSS) score for CVE-2022-50522

Common vulnerability scoring system (CVSS) metrics for CVE-2022-50522

Weakness enumeration for CVE-2022-50522

OS Trackers for CVE-2022-50522

Affected software / configurations for CVE-2022-50522

References for CVE-2022-50522