CVE-2022-49191 (GCVE-0-2022-49191)
Vulnerability from cvelistv5
Published
2025-02-26 01:55
Modified
2025-05-04 08:31
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
Version: 6769140d304731f0a3b177470a2adb4bacd9036b
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmxser: fix xmit_buf leak in activate when LSR == 0xff\n\nWhen LSR is 0xff in -\u003eactivate() (rather unlike), we return an error.\nProvided -\u003eshutdown() is not called when -\u003eactivate() fails, nothing\nactually frees the buffer in this case.\n\nFix this by properly freeing the buffer in a designated label. We jump\nthere also from the \"!info-\u003etype\" if now too."
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          "url": "https://git.kernel.org/stable/c/cd3a4907ee334b40d7aa880c7ab310b154fd5cd4"
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    "cveId": "CVE-2022-49191",
    "datePublished": "2025-02-26T01:55:38.124Z",
    "dateReserved": "2025-02-26T01:49:39.286Z",
    "dateUpdated": "2025-05-04T08:31:56.809Z",
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  }
}


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