CVE-2022-49191 — mxser: fix xmit_buf leak in activate when LSR == 0xff
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 …
Published: 2025-02-26 · CVSS: Unscored
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7