CVE-2024-40971

low-risk
Published 2024-07-12

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

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (13)

Patch https://git.kernel.org/stable/c/38a82c8d00638bb642bef787eb1d5e0e4d3b7d71
Patch https://git.kernel.org/stable/c/724429db09e21ee153fef35e34342279d33df6ae
Patch https://git.kernel.org/stable/c/a9cea0489c562c97cd56bb345e78939f9909e7f4
Patch https://git.kernel.org/stable/c/ac5eecf481c29942eb9a862e758c0c8b68090c33
Patch https://git.kernel.org/stable/c/ae39c8ec4250d2a35ddaab1c40faacfec306ff66
Patch https://git.kernel.org/stable/c/eddeb8d941d5be11a9da5637dbe81ac37e8449a2
Patch https://git.kernel.org/stable/c/38a82c8d00638bb642bef787eb1d5e0e4d3b7d71
Patch https://git.kernel.org/stable/c/724429db09e21ee153fef35e34342279d33df6ae
Patch https://git.kernel.org/stable/c/a9cea0489c562c97cd56bb345e78939f9909e7f4
Patch https://git.kernel.org/stable/c/ac5eecf481c29942eb9a862e758c0c8b68090c33
Patch https://git.kernel.org/stable/c/ae39c8ec4250d2a35ddaab1c40faacfec306ff66
Patch https://git.kernel.org/stable/c/eddeb8d941d5be11a9da5637dbe81ac37e8449a2
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal