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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-26697

nilfs2: fix data corruption in dsync block recovery for small block sizes

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix data corruption in dsync block recovery for small block sizes The helper function nilfs_recovery_copy_block() of nilfs_recovery_dsync_blocks(), which recovers data from logs created by data sync writes during a mount after an unclean shutdown, incorrectly calculates the on-page offset when copying repair data to the file's page cache. In environments where the block size is smaller than the page size, this flaw can cause data corruption and leak uninitialized memory bytes during the recovery process. Fix these issues by correcting this byte offset calculation on the page.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 5278c3eb6bf5896417572b52adb6be9d26e92f65affected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0baaffected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 364a66be2abdcd4fd426ffa44d9b8f40aafb3caaaffected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 120f7fa2008e3bd8b7680b4ab5df942decf60fd5affected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 9c9c68d64fd3284f7097ed6ae057c8441f39fcd3affected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0daffected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 2000016bab499074e6248ea85aeea7dd762355d9affected
  • 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to < 67b8bcbaed4777871bb0dcc888fb02a614a98ab1affected

Linux Linux

Default version status: affected

  • 2.6.30affected
  • 0 to < 2.6.30unaffected
  • 4.19.307 to ≤ 4.19.*unaffected
  • 5.4.269 to ≤ 5.4.*unaffected
  • 5.10.210 to ≤ 5.10.*unaffected
  • 5.15.149 to ≤ 5.15.*unaffected
  • 6.1.79 to ≤ 6.1.*unaffected
  • 6.6.18 to ≤ 6.6.*unaffected
  • 6.7.6 to ≤ 6.7.*unaffected
  • 6.8 to ≤ *unaffected

References