Bug 2373501 (CVE-2022-50056)

Summary: CVE-2022-50056 kernel: fs/ntfs3: Fix missing i_op in ntfs_read_mft
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-06-18 12:05:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Fix missing i_op in ntfs_read_mft

There is null pointer dereference because i_op == NULL.
The bug happens because we don't initialize i_op for records in $Extend.
Comment 1 Avinash Hanwate 2025-06-19 21:35:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061848-CVE-2022-50056-dfbb@gregkh/T