CVE-2021-46966 (GCVE-0-2021-46966)
Vulnerability from cvelistv5
Published
2024-02-27 18:47
Modified
2026-05-23 15:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ACPI: custom_method: fix potential use-after-free issue In cm_write(), buf is always freed when reaching the end of the function. If the requested count is less than table.length, the allocated buffer will be freed but subsequent calls to cm_write() will still try to access it. Remove the unconditional kfree(buf) at the end of the function and set the buf to NULL in the -EINVAL error path to match the rest of function.
References
Impacted products
Vendor Product Version
Linux Linux Version: 4bda2b79a9d04c8ba31681c66e95877dbb433416
Version: 5c12dadcbef8cd55ef1f5dac799bfcbb7ea7db1d
Version: 35b88a10535edcf62d3e6b7893a8cd506ff98a24
Version: e4467fb6ef547aa352dc03397f9474ec84eced5b
Version: 03d1571d9513369c17e6848476763ebbd10ec2cb
Version: 03d1571d9513369c17e6848476763ebbd10ec2cb
Version: 03d1571d9513369c17e6848476763ebbd10ec2cb
Version: 03d1571d9513369c17e6848476763ebbd10ec2cb
Version: 03d1571d9513369c17e6848476763ebbd10ec2cb
Version: 70424999fbf1f160ade111cb9baab51776e0f9c2
Version: 06cd4a06eb596a888239fb8ceb6ea15677cab396
Version: 4.4.195   ≤
Version: 4.9.195   ≤
Version: 4.14.147   ≤
Version: 4.19.77   ≤
Version: 5.2.19   ≤
Version: 5.3.4   ≤
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