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ubuntucveUbuntu.comUB:CVE-2024-40971
HistoryJul 12, 2024 - 12:00 a.m.

CVE-2024-40971

2024-07-1200:00:00
ubuntu.com
ubuntu.com
3
linux kernel
cve-2024-40971
vulnerability
data corruption
f2fs
inlinecrypt

AI Score

7

Confidence

High

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