CVE-2022-50355

staging: vt6655: fix some erroneous memory clean-up loops

MEDIUM
5.5
CVSS Score
Published: September 17, 2025 at 02:56 PM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: staging: vt6655: fix some erroneous memory clean-up loops In some initialization functions of this driver, memory is allocated with 'i' acting as an index variable and increasing from 0. The commit in "Fixes" introduces some clean-up codes in case of allocation failure, which free memory in reverse order with 'i' decreasing to 0. However, there are some problems: - The case i=0 is left out. Thus memory is leaked. - In case memory allocation fails right from the start, the memory freeing loops will start with i=-1 and invalid memory locations will be accessed. One of these loops has been fixed in commit c8ff91535880 ("staging: vt6655: fix potential memory leak"). Fix the remaining erroneous loops.

Affected

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

4.18 ≤ v < 4.19.2624.18 ≤ v < 5.10.1504.18 ≤ v < 5.15.754.18 ≤ v < 5.19.174.18 ≤ v < 5.4.2204.18 ≤ v < 6.0.34.18 ≤ v < 6.14.20 ≤ v < 5.4.2205.11 ≤ v < 5.15.755.16 ≤ v < 5.19.175.5 ≤ v < 5.10.1506.0 ≤ v < 6.0.34.185341ee0adb17d12a96dc5344e0d267cd12b52135
Vendor states this is fixed in 2a2db520e3ca5aafba7c211abfd397666c9b5f9d (fixed)
Vendor states this is fixed in 637672a71f5016a40b0a6c0f3c8ad25eacedc8c3 (fixed)
Vendor states this is fixed in 88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0 (fixed)
Vendor states this is fixed in 95ac62e8545be2b0a8cae0beef7c682e2e470e48 (fixed)
Vendor states this is fixed in a9e9806d1c315bc50dce05479a079b9a104474b8 (fixed)
Vendor states this is fixed in ed11b73c963292e7b49c0f37025c58ed3b7921d6 (fixed)
Vendor states this is fixed in f19e5b7df54590c831f350381963f25585c8f7d5 (fixed)
Vendor states this is fixed in 4.18 (unaffected)
Vendor states this is fixed in 4.19.262 (unaffected)
Vendor states this is fixed in 5.10.150 (unaffected)
Vendor states this is fixed in 5.15.75 (unaffected)
Vendor states this is fixed in 5.19.17 (unaffected)
Vendor states this is fixed in 5.4.220 (unaffected)
Vendor states this is fixed in 6.0.3 (unaffected)
Vendor states this is fixed in 6.1 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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