CVE-2024-40971

Summary

In the Linux kernel, the following vulnerability has been resolved:

f2fs: remove clear SB_INLINECRYPT flag in default_options

In f2fs_remount, SB_INLINECRYPT flag will be clear and re-set. If create new file or open file during this gap, these files will not use inlinecrypt. Worse case, it may lead to data corruption if wrappedkey_v0 is enable.

Thread A: Thread B:

-f2fs_remount -f2fs_file_open or f2fs_new_inode -default_options <- clear SB_INLINECRYPT flag

                                      -fscrypt_select_encryption_impl

-parse_options <- set SB_INLINECRYPT again

Affected Software

VendorProductVersion RangeStatus
LinuxLinux98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 38a82c8d00638bb642bef787eb1d5e0e4d3b7d71affected
LinuxLinux98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < 724429db09e21ee153fef35e34342279d33df6aeaffected
LinuxLinux98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < a9cea0489c562c97cd56bb345e78939f9909e7f4affected
LinuxLinux98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < eddeb8d941d5be11a9da5637dbe81ac37e8449a2affected
LinuxLinux98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < ae39c8ec4250d2a35ddaab1c40faacfec306ff66affected
LinuxLinux98e4da8ca301e062d79ae168c67e56f3c3de3ce4 < ac5eecf481c29942eb9a862e758c0c8b68090c33affected
LinuxLinux3.8affected
LinuxLinux0 < 3.8unaffected
LinuxLinux5.10.221 <= 5.10.*unaffected
LinuxLinux5.15.162 <= 5.15.*unaffected
LinuxLinux6.1.96 <= 6.1.*unaffected
LinuxLinux6.6.36 <= 6.6.*unaffected
LinuxLinux6.9.7 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

Additional References

References