CVE-2022-49798

tracing: Fix race where eprobes can be called before the event

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix race where eprobes can be called before the event The flag that tells the event to call its triggers after reading the event is set for eprobes after the eprobe is enabled. This leads to a race where the eprobe may be triggered at the beginning of the event where the record information is NULL. The eprobe then dereferences the NULL record causing a NULL kernel pointer bug. Test for a NULL record to keep this from happening.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/7291dec4f2d17a2d3fd1f789fb41e58476539f21
https://git.kernel.org/stable/c/73f5191467ffe3af82f27fe0ea6a8c2fac724d3f
https://git.kernel.org/stable/c/94eedf3dded5fb472ce97bfaf3ac1c6c29c35d26

Frequently Asked Questions

What is the severity of CVE-2022-49798?: CVE-2022-49798 has not yet been assigned a CVSS score.
How to fix CVE-2022-49798?: To fix CVE-2022-49798, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49798 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49798 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49798?: CVE-2022-49798 affects Linux Linux, Linux Linux.

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