CVE-2022-50355
CVE-2022-50355 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (9th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-55643
- Weakness: CWE-401
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-50355?
- 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.
- How severe is CVE-2022-50355?
- CVE-2022-50355 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-50355 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-50355?
- CVE-2022-50355 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-50355?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2022-50355 have an EU (EUVD) identifier?
- Yes. CVE-2022-50355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-55643.
- When was CVE-2022-50355 published?
- CVE-2022-50355 was published on 2025-09-17 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/2a2db520e3ca5aafba7c211abfd397666c9b5f9d
- https://git.kernel.org/stable/c/637672a71f5016a40b0a6c0f3c8ad25eacedc8c3
- https://git.kernel.org/stable/c/88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0
- https://git.kernel.org/stable/c/95ac62e8545be2b0a8cae0beef7c682e2e470e48
- https://git.kernel.org/stable/c/a9e9806d1c315bc50dce05479a079b9a104474b8
- https://git.kernel.org/stable/c/ed11b73c963292e7b49c0f37025c58ed3b7921d6
- https://git.kernel.org/stable/c/f19e5b7df54590c831f350381963f25585c8f7d5
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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