CVE-2022-49619: net: sfp: fix memory leak in sfp_probe()
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: sfp: fix memory leak in sfp_probe() sfp_probe() allocates a memory chunk from sfp with sfp_alloc(). When devm_add_action() fails, sfp is not freed, which leads to a memory leak. We should use devm_add_action_or_reset() instead of devm_add_action().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | <4.14.289 | |
| Linux Kernel | >=4.15<4.19.253 | |
| Linux Kernel | >=4.20<5.4.207 | |
| Linux Kernel | >=5.5<5.10.132 | |
| Linux Kernel | >=5.11<5.15.56 | |
| Linux Kernel | >=5.16<5.18.13 | |
| Linux Kernel | =5.19-rc1 | |
| Linux Kernel | =5.19-rc2 | |
| Linux Kernel | =5.19-rc3 | |
| Linux Kernel | =5.19-rc4 |
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Reference Links
- https://git.kernel.org/stable/c/9ec5a97f327a89031fce6cfc3e95543c53936638
- https://git.kernel.org/stable/c/1545bc727625ea6e8decd717e5d1e8cc704ccf8f
- https://git.kernel.org/stable/c/ede990cfc42775bd0141e21f37ee365dcaeeb50f
- https://git.kernel.org/stable/c/67dc32542a1fb7790d0853cf4a5cf859ac6a2002
- https://git.kernel.org/stable/c/204543581a2f26bb3b997a304c0bd06926ba7f15
- https://git.kernel.org/stable/c/f22ddc8a5278d7fb6369a0aeb0d8775a0aefaaee
- https://git.kernel.org/stable/c/0a18d802d65cf662644fd1d369c86d84a5630652
Frequently Asked Questions
What is the severity of CVE-2022-49619?
CVE-2022-49619 has a medium severity level due to its potential for causing memory leaks in affected systems.
How do I fix CVE-2022-49619?
To fix CVE-2022-49619, update your Linux kernel to a version that contains the patch addressing this memory leak issue.
Which versions of the Linux kernel are affected by CVE-2022-49619?
CVE-2022-49619 affects various versions of the Linux kernel ranging from 4.14 to 5.19-rc4, specifically those within certain version ranges.
What components are involved in the CVE-2022-49619 vulnerability?
The vulnerability involves the 'sfp_probe()' function within the Linux kernel network subsystem, which is related to handling memory management.
Is CVE-2022-49619 a remote attack vulnerability?
CVE-2022-49619 is primarily a local privilege escalation vulnerability rather than a remote attack vector.
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