Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4bda2b79a9d04c8ba31681c66e95877dbb433416 before 1d53ca5d131074c925ce38361fb0376d3bf7e394; affected 5c12dadcbef8cd55ef1f5dac799bfcbb7ea7db1d before 8b04d57f30caf76649d0567551589af9a66ca9be; affected 35b88a10535edcf62d3e6b7893a8cd506ff98a24 before 90575d1d9311b753cf1718f4ce9061ddda7dfd23; affected e4467fb6ef547aa352dc03397f9474ec84eced5b before a5b26a2e362f572d87e9fd35435680e557052a17; affected 03d1571d9513369c17e6848476763ebbd10ec2cb before 72814a94c38a33239793f7622cec6ace1e540c4b; affected 03d1571d9513369c17e6848476763ebbd10ec2cb before 62dc2440ebb552aa0d7f635e1697e077d9d21203; affected 03d1571d9513369c17e6848476763ebbd10ec2cb before f16737caf41fc06cfe6e49048becb09657074d4b; affected 03d1571d9513369c17e6848476763ebbd10ec2cb before b7a5baaae212a686ceb812c32fceed79c03c0234; affected 03d1571d9513369c17e6848476763ebbd10ec2cb before e483bb9a991bdae29a0caa4b3a6d002c968f94aa; affected 70424999fbf1f160ade111cb9baab51776e0f9c2; affected 06cd4a06eb596a888239fb8ceb6ea15677cab396; affected 4.4.195 before 4.4.269; affected 4.9.195 before 4.9.269; affected 4.14.147 before 4.14.233; affected 4.19.77 before 4.19.191; affected 5.2.19 before 5.3; affected 5.3.4 before 5.4 |
| Linux / Linux | affected 5.4; unaffected 0 before 5.4; unaffected 4.4.269 through 4.4.*; unaffected 4.9.269 through 4.9.*; unaffected 4.14.233 through 4.14.*; unaffected 4.19.191 through 4.19.*; unaffected 5.4.118 through 5.4.*; unaffected 5.10.36 through 5.10.*; unaffected 5.11.20 through 5.11.*; unaffected 5.12.3 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/1d53ca5d131074c925ce38361fb0376d3bf7e394
- https://git.kernel.org/stable/c/8b04d57f30caf76649d0567551589af9a66ca9be
- https://git.kernel.org/stable/c/90575d1d9311b753cf1718f4ce9061ddda7dfd23
- https://git.kernel.org/stable/c/a5b26a2e362f572d87e9fd35435680e557052a17
- https://git.kernel.org/stable/c/72814a94c38a33239793f7622cec6ace1e540c4b
- https://git.kernel.org/stable/c/62dc2440ebb552aa0d7f635e1697e077d9d21203
- https://git.kernel.org/stable/c/f16737caf41fc06cfe6e49048becb09657074d4b
- https://git.kernel.org/stable/c/b7a5baaae212a686ceb812c32fceed79c03c0234
- https://git.kernel.org/stable/c/e483bb9a991bdae29a0caa4b3a6d002c968f94aa
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/1d53ca5d131074c925ce38361fb0376d3bf7e394
- https://git.kernel.org/stable/c/8b04d57f30caf76649d0567551589af9a66ca9be
- https://git.kernel.org/stable/c/90575d1d9311b753cf1718f4ce9061ddda7dfd23
- https://git.kernel.org/stable/c/a5b26a2e362f572d87e9fd35435680e557052a17
- https://git.kernel.org/stable/c/72814a94c38a33239793f7622cec6ace1e540c4b
- https://git.kernel.org/stable/c/62dc2440ebb552aa0d7f635e1697e077d9d21203
- https://git.kernel.org/stable/c/f16737caf41fc06cfe6e49048becb09657074d4b
- https://git.kernel.org/stable/c/b7a5baaae212a686ceb812c32fceed79c03c0234
- https://git.kernel.org/stable/c/e483bb9a991bdae29a0caa4b3a6d002c968f94aa