CVE-2022-49632: icmp: Fix a data-race around sysctl_icmp_errors_use_inbound_ifaddr.
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: icmp: Fix a data-race around sysctl_icmp_errors_use_inbound_ifaddr. While reading sysctl_icmp_errors_use_inbound_ifaddr, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=2.6.12<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 | |
| Linux Kernel | =5.19-rc5 | |
| Linux Kernel | =5.19-rc6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-49632?
CVE-2022-49632 is classified as a moderate severity vulnerability due to its potential to allow a data race condition.
How do I fix CVE-2022-49632?
To fix CVE-2022-49632, update your Linux kernel to a version that includes the patch for this vulnerability.
Which versions of the Linux kernel are affected by CVE-2022-49632?
CVE-2022-49632 affects Linux kernel versions from 2.6.12 up to 5.15.56 as well as versions 5.16 through 5.19-rc6.
What type of vulnerability is CVE-2022-49632?
CVE-2022-49632 is a data race condition vulnerability in the Linux kernel regarding the sysctl_icmp_errors_use_inbound_ifaddr configuration.
Is CVE-2022-49632 easy to exploit?
Exploiting CVE-2022-49632 requires specific conditions to be met, making it moderately difficult to exploit.
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- version/linux kernel/5.19-rc1
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- version/linux kernel/5.19-rc4
- version/linux kernel/5.19-rc5
- version/linux kernel/5.19-rc6