| Assigner | Linux |
| Reserved | 2024-02-27 |
| Published | 2024-02-27 |
| Updated | 2024-06-28 |
Description
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.
Product status
4bda2b79a9d0 before 1d53ca5d1310
5c12dadcbef8 before 8b04d57f30ca
35b88a10535e before 90575d1d9311
e4467fb6ef54 before a5b26a2e362f
03d1571d9513 before 72814a94c38a
03d1571d9513 before 62dc2440ebb5
03d1571d9513 before f16737caf41f
03d1571d9513 before b7a5baaae212
03d1571d9513 before e483bb9a991b
5.4
Any version before 5.4
4.4.269
4.9.269
4.14.233
4.19.191
5.4.118
5.10.36
5.11.20
5.12.3
5.13
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
