CVE-2022-49191
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.
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.27% probability · 19th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9dPatch
- https://git.kernel.org/stable/c/2cd05c38a27bee7fb42aa4d43174d68ac55dac0fPatch
- https://git.kernel.org/stable/c/376922045009f8ea2d20a8fa3475e95b47c41690Patch
- https://git.kernel.org/stable/c/685b6d16bf89595310b5d61394c9b97cc9505c7cPatch
- https://git.kernel.org/stable/c/6c9041b2f90c0eace73106f22350e1d2c98f5edcPatch
- https://git.kernel.org/stable/c/6dffc2035fbaada60ca8db59e0962e34f760370aPatch
- https://git.kernel.org/stable/c/996291d06851a26678a0fab488b6e1f0677c0576Patch
- https://git.kernel.org/stable/c/b125b08dbee3611f03f53b71471813ed4ccafcddPatch
- https://git.kernel.org/stable/c/cd3a4907ee334b40d7aa880c7ab310b154fd5cd4Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.