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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.

PUBLISHED Reserved 2025-09-17 | Published 2025-09-17 | Updated 2025-09-17 | Assigner Linux

Product status

Default status
unaffected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before 637672a71f5016a40b0a6c0f3c8ad25eacedc8c3
affected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before 88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0
affected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before 95ac62e8545be2b0a8cae0beef7c682e2e470e48
affected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before f19e5b7df54590c831f350381963f25585c8f7d5
affected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before a9e9806d1c315bc50dce05479a079b9a104474b8
affected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before ed11b73c963292e7b49c0f37025c58ed3b7921d6
affected

5341ee0adb17d12a96dc5344e0d267cd12b52135 (git) before 2a2db520e3ca5aafba7c211abfd397666c9b5f9d
affected

Default status
affected

4.18
affected

Any version before 4.18
unaffected

4.19.262 (semver)
unaffected

5.4.220 (semver)
unaffected

5.10.150 (semver)
unaffected

5.15.75 (semver)
unaffected

5.19.17 (semver)
unaffected

6.0.3 (semver)
unaffected

6.1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/637672a71f5016a40b0a6c0f3c8ad25eacedc8c3

git.kernel.org/...c/88b9cc60f26e8a05d1ddbddf91b09ca2915f20e0

git.kernel.org/...c/95ac62e8545be2b0a8cae0beef7c682e2e470e48

git.kernel.org/...c/f19e5b7df54590c831f350381963f25585c8f7d5

git.kernel.org/...c/a9e9806d1c315bc50dce05479a079b9a104474b8

git.kernel.org/...c/ed11b73c963292e7b49c0f37025c58ed3b7921d6

git.kernel.org/...c/2a2db520e3ca5aafba7c211abfd397666c9b5f9d

cve.org (CVE-2022-50355)

nvd.nist.gov (CVE-2022-50355)

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