CVE-2025-38243
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-07-09

Last updated on: 2025-11-19

Assigner: kernel.org

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.
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Meta Information
Published
2025-07-09
Last Modified
2025-11-19
Generated
2026-05-07
AI Q&A
2025-07-09
EPSS Evaluated
2026-05-05
NVD
CVE-2025-38243
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel 6.16
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel's btrfs filesystem involves invalid inode pointer dereferences during log replay. Specifically, when the function read_one_inode() returns a NULL pointer, the code may incorrectly proceed to dereference this invalid pointer, leading to invalid memory access and causing the system to crash. The issue occurs in error handling paths where the code attempts to use an inode pointer without verifying it is valid.


How can this vulnerability impact me? :

This vulnerability can cause the Linux system to crash due to invalid memory access when handling btrfs filesystem operations. Such crashes can lead to denial of service, potentially causing system instability or downtime.


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