CVE-2022-48780

net/smc: Avoid overwriting the copies of clcsock callback functions

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: Avoid overwriting the copies of clcsock callback functions The callback functions of clcsock will be saved and replaced during the fallback. But if the fallback happens more than once, then the copies of these callback functions will be overwritten incorrectly, resulting in a loop call issue: clcsk->sk_error_report |- smc_fback_error_report() <------------------------------| |- smc_fback_forward_wakeup() | (loop) |- clcsock_callback() (incorrectly overwritten) | |- smc->clcsk_error_report() ------------------| So this patch fixes the issue by saving these function pointers only once in the fallback and avoiding overwriting.

N/A

CVSS

Severity:

EPSS 0.07%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/7de7ba7a8bd4fde0141de8674c13514d0072f0e6
https://git.kernel.org/stable/c/f00b6c976ae0dfbd9b891175f713f59095d23842
https://git.kernel.org/stable/c/1de9770d121ee9294794cca0e0be8fbfa0134ee8

Frequently Asked Questions

What is the severity of CVE-2022-48780?: CVE-2022-48780 has not yet been assigned a CVSS score.
How to fix CVE-2022-48780?: To fix CVE-2022-48780, 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-2022-48780 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-48780 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-2022-48780?: CVE-2022-48780 affects Linux Linux, Linux Linux.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.