CVE-2025-38243

btrfs: fix invalid inode pointer dereferences during log replay

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix invalid inode pointer dereferences during log replay In a few places where we call read_one_inode(), if we get a NULL pointer we end up jumping into an error path, or fallthrough in case of __add_inode_ref(), where we then do something like this: iput(&inode->vfs_inode); which results in an invalid inode pointer that triggers an invalid memory access, resulting in a crash. Fix this by making sure we don't do such dereferences.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/401d098f92ea69d8a75f8b845daf343e511681ba
https://git.kernel.org/stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf
https://git.kernel.org/stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760

Frequently Asked Questions

What is the severity of CVE-2025-38243?: CVE-2025-38243 has not yet been assigned a CVSS score.
How to fix CVE-2025-38243?: To fix CVE-2025-38243, 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-2025-38243 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38243 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-2025-38243?: CVE-2025-38243 affects Linux Linux, Linux Linux.

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