CVE-2024-50216

xfs: fix finding a last resort AG in xfs_filestream_pick_ag

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: fix finding a last resort AG in xfs_filestream_pick_ag When the main loop in xfs_filestream_pick_ag fails to find a suitable AG it tries to just pick the online AG. But the loop for that uses args->pag as loop iterator while the later code expects pag to be set. Fix this by reusing the max_pag case for this last resort, and also add a check for impossible case of no AG just to make sure that the uninitialized pag doesn't even escape in theory.

N/A

CVSS

Severity:

EPSS 0.04%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/77ddc732416b017180893cbb2356e9f0a414c575
https://git.kernel.org/stable/c/a023408925acd64db5c8980373fcb3e28ec6fd29
https://git.kernel.org/stable/c/dc60992ce76fbc2f71c2674f435ff6bde2108028

Frequently Asked Questions

What is the severity of CVE-2024-50216?: CVE-2024-50216 has not yet been assigned a CVSS score.
How to fix CVE-2024-50216?: To fix CVE-2024-50216, 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-2024-50216 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-50216 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-2024-50216?: CVE-2024-50216 affects Linux Linux, Linux Linux.

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