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CVE-2026-98880EUVD-2026-108674

ntfs3: handle set_blocksize failures

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.6.158, 6.12.111, 6.18.53
None on Exploit-DB, Metasploit or GitHub

Summary

The ntfs3 filesystem driver in the Linux kernel is affected, where mounting a volume can crash the system when the requested block size is larger than the memory page size. The flaw is that a failure to set the block size is not properly handled, which can trigger a kernel bug check during the first read.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

In the Linux kernel, the following vulnerability has been resolved: ntfs3: handle set_blocksize failures ntfs3 uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. Record last updated

Affected versions

  • Linux Linux

    From 82cae269cfa953032fbb8980a7d554d60fb00b17 · fixed in df9dac4dbe557f6455a61e68cc09ef98b22f3686; From 82cae269cfa953032fbb8980a7d554d60fb00b17 · fixed in c5b8a7ec9a0a71518915c82b8552be1ccbb88288; From 82cae269cfa953032fbb8980a7d554d60fb00b17 · fixed in 78e10082f3e919b8863958feac5f269d3ade9469; From 82cae269cfa953032fbb8980a7d554d60fb00b17 · fixed in 24f7d1824b7581ae3daf9d443c5dfeabd89df6d8

  • Linux Linux

    5.15

  • KernelLinux

    fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53

References 4

git.kernel.org