CVE-2021-47464: audit: fix possible null-pointer dereference in audit_filter_rules
First published: Wed May 22 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: audit: fix possible null-pointer dereference in audit_filter_rules Fix possible null-pointer dereference in audit_filter_rules. audit_filter_rules() error: we previously assumed 'ctx' could be null
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=5.3<5.4.156 | |
| Linux Kernel | >=5.5<5.10.76 | |
| Linux Kernel | >=5.11<5.14.15 | |
| Linux Kernel | =5.15-rc1 | |
| Linux Kernel | =5.15-rc2 | |
| Linux Kernel | =5.15-rc3 | |
| Linux Kernel | =5.15-rc4 | |
| Linux Kernel | =5.15-rc5 | |
| Linux Kernel | =5.15-rc6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-47464?
CVE-2021-47464 has a medium severity rating due to the potential for a null-pointer dereference.
How do I fix CVE-2021-47464?
To mitigate CVE-2021-47464, users should update their Linux kernel to the latest version where this vulnerability has been patched.
What kind of systems are affected by CVE-2021-47464?
CVE-2021-47464 affects all supported versions of the Linux kernel that utilize the audit_filter_rules function.
What is the impact of CVE-2021-47464?
The impact of CVE-2021-47464 includes the potential for causing a system crash or denial of service due to a null-pointer dereference.
How was CVE-2021-47464 discovered?
CVE-2021-47464 was identified as part of regular security assessments and code reviews of the Linux kernel.
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