CVE-2022-49384: md: fix double free of io_acct_set bioset
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: md: fix double free of io_acct_set bioset Now io_acct_set is alloc and free in personality. Remove the codes that free io_acct_set in md_free and md_stop.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=5.15.17<5.15.46 | |
| Linux Kernel | >=5.16.3<5.17.14 | |
| Linux Kernel | >=5.18<5.18.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-49384?
CVE-2022-49384 is classified as a medium severity vulnerability due to the double free issue in the Linux kernel.
How do I fix CVE-2022-49384?
To fix CVE-2022-49384, update your Linux kernel to a version that includes the patch, specifically version 5.15.46 or later, 5.17.14 or later, or 5.18.3 or later.
What version of the Linux kernel is affected by CVE-2022-49384?
CVE-2022-49384 affects Linux kernel versions between 5.15.17 and 5.15.46, 5.16.3 and 5.17.14, and 5.18 and 5.18.3.
What function is primarily impacted by CVE-2022-49384?
CVE-2022-49384 primarily impacts the 'md' (multiple devices) functionality in the Linux kernel due to a double free of the 'io_acct_set' bioset.
Is CVE-2022-49384 present in all Linux distributions?
CVE-2022-49384 may not be present in all Linux distributions, as it depends on whether the specific kernel versions are used that contain the vulnerability.
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