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
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
git.kernel.org/linus/ac5eecf481c29942eb9a862e758c0c8b68090c33 (6.10-rc1)
git.kernel.org/stable/c/38a82c8d00638bb642bef787eb1d5e0e4d3b7d71
git.kernel.org/stable/c/724429db09e21ee153fef35e34342279d33df6ae
git.kernel.org/stable/c/a9cea0489c562c97cd56bb345e78939f9909e7f4
git.kernel.org/stable/c/ac5eecf481c29942eb9a862e758c0c8b68090c33
git.kernel.org/stable/c/ae39c8ec4250d2a35ddaab1c40faacfec306ff66
git.kernel.org/stable/c/eddeb8d941d5be11a9da5637dbe81ac37e8449a2
launchpad.net/bugs/cve/CVE-2024-40971
nvd.nist.gov/vuln/detail/CVE-2024-40971
security-tracker.debian.org/tracker/CVE-2024-40971
www.cve.org/CVERecord?id=CVE-2024-40971