CVE-2024-26697

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 5278c3eb6bf5896417572b52adb6be9d26e92f65affected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0baaffected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 364a66be2abdcd4fd426ffa44d9b8f40aafb3caaaffected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 120f7fa2008e3bd8b7680b4ab5df942decf60fd5affected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 9c9c68d64fd3284f7097ed6ae057c8441f39fcd3affected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0daffected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 2000016bab499074e6248ea85aeea7dd762355d9affected
LinuxLinux0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b < 67b8bcbaed4777871bb0dcc888fb02a614a98ab1affected
LinuxLinux2.6.30affected
LinuxLinux0 < 2.6.30unaffected
LinuxLinux4.19.307 <= 4.19.*unaffected
LinuxLinux5.4.269 <= 5.4.*unaffected
LinuxLinux5.10.210 <= 5.10.*unaffected
LinuxLinux5.15.149 <= 5.15.*unaffected
LinuxLinux6.1.79 <= 6.1.*unaffected
LinuxLinux6.6.18 <= 6.6.*unaffected
LinuxLinux6.7.6 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References