CVE-2022-49191
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
mxser: fix xmit_buf leak in activate when LSR == 0xff
When LSR is 0xff in ->activate() (rather unlike), we return an error. Provided ->shutdown() is not called when ->activate() fails, nothing actually frees the buffer in this case.
Fix this by properly freeing the buffer in a designated label. We jump there also from the "!info->type" if now too.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 376922045009f8ea2d20a8fa3475e95b47c41690 | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 685b6d16bf89595310b5d61394c9b97cc9505c7c | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 996291d06851a26678a0fab488b6e1f0677c0576 | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 2cd05c38a27bee7fb42aa4d43174d68ac55dac0f | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < b125b08dbee3611f03f53b71471813ed4ccafcdd | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 6c9041b2f90c0eace73106f22350e1d2c98f5edc | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < 6dffc2035fbaada60ca8db59e0962e34f760370a | affected |
| Linux | Linux | 6769140d304731f0a3b177470a2adb4bacd9036b < cd3a4907ee334b40d7aa880c7ab310b154fd5cd4 | affected |
| Linux | Linux | 2.6.33 | affected |
| Linux | Linux | 0 < 2.6.33 | unaffected |
| Linux | Linux | 4.9.311 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.276 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.238 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.189 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.110 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.33 <= 5.15.* | unaffected |
| Linux | Linux | 5.16.19 <= 5.16.* | unaffected |
| Linux | Linux | 5.17.2 <= 5.17.* | unaffected |
| Linux | Linux | 5.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/376922045009f8ea2d20a8fa3475e95b47c41690
- https://git.kernel.org/stable/c/125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d
- https://git.kernel.org/stable/c/685b6d16bf89595310b5d61394c9b97cc9505c7c
- https://git.kernel.org/stable/c/996291d06851a26678a0fab488b6e1f0677c0576
- https://git.kernel.org/stable/c/2cd05c38a27bee7fb42aa4d43174d68ac55dac0f
- https://git.kernel.org/stable/c/b125b08dbee3611f03f53b71471813ed4ccafcdd
- https://git.kernel.org/stable/c/6c9041b2f90c0eace73106f22350e1d2c98f5edc
- https://git.kernel.org/stable/c/6dffc2035fbaada60ca8db59e0962e34f760370a
- https://git.kernel.org/stable/c/cd3a4907ee334b40d7aa880c7ab310b154fd5cd4
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