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CVE-2026-97487

jfs: handle set_blocksize failures

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, and 1 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: jfs: handle set_blocksize failures jfs 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. Record last updated

Affected versions

  • Linux Linux

    From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in e2712fa5c02cd1b3e40d45bc8ce581f3c67bf4b4; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in deb9400a38849e03210c9169b777e89e74debe96; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in a0eaa3f4b6dcc829228752f6255f0e45cc94b273; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 87d6852f06c5a29f757f7b7ad1423e4cbd0f2cad; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in a0ac22af8acca6ea6c57aff72662086cb3243b1c; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 153374ee67a458c77b5755d3cc57fbdc639d327e; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 05107f5602751fcfd3d108c1f579eb45aabead52

  • Linux Linux

    2.6.12

  • KernelLinux

    From 2.6.12 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53

References 7

git.kernel.org