CVE-2022-49191
mxser: fix xmit_buf leak in activate when LSR == 0xff
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
6769140d304731f0a3b177470a2adb4bacd9036b < 376922045009f8ea2d20a8fa3475e95b47c41690 6769140d304731f0a3b177470a2adb4bacd9036b < 125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d 6769140d304731f0a3b177470a2adb4bacd9036b < 685b6d16bf89595310b5d61394c9b97cc9505c7c 6769140d304731f0a3b177470a2adb4bacd9036b < 996291d06851a26678a0fab488b6e1f0677c0576 6769140d304731f0a3b177470a2adb4bacd9036b < 2cd05c38a27bee7fb42aa4d43174d68ac55dac0f 6769140d304731f0a3b177470a2adb4bacd9036b < b125b08dbee3611f03f53b71471813ed4ccafcdd 6769140d304731f0a3b177470a2adb4bacd9036b < 6c9041b2f90c0eace73106f22350e1d2c98f5edc 6769140d304731f0a3b177470a2adb4bacd9036b < 6dffc2035fbaada60ca8db59e0962e34f760370a 6769140d304731f0a3b177470a2adb4bacd9036b < cd3a4907ee334b40d7aa880c7ab310b154fd5cd4
Linux / Linux
2.6.33
References
git.kernel.org: https://git.kernel.org/stable/c/376922045009f8ea2d20a8fa3475e95b47c41690 git.kernel.org: https://git.kernel.org/stable/c/125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d git.kernel.org: https://git.kernel.org/stable/c/685b6d16bf89595310b5d61394c9b97cc9505c7c git.kernel.org: https://git.kernel.org/stable/c/996291d06851a26678a0fab488b6e1f0677c0576 git.kernel.org: https://git.kernel.org/stable/c/2cd05c38a27bee7fb42aa4d43174d68ac55dac0f git.kernel.org: https://git.kernel.org/stable/c/b125b08dbee3611f03f53b71471813ed4ccafcdd git.kernel.org: https://git.kernel.org/stable/c/6c9041b2f90c0eace73106f22350e1d2c98f5edc git.kernel.org: https://git.kernel.org/stable/c/6dffc2035fbaada60ca8db59e0962e34f760370a git.kernel.org: https://git.kernel.org/stable/c/cd3a4907ee334b40d7aa880c7ab310b154fd5cd4