CVE-2024-26697

nilfs2: fix data corruption in dsync block recovery for small block sizes

State: Published
Severity: 7.8 High
Published: Apr 3, 2024
Updated: Aug 5, 2026
Reserved: Feb 19, 2024

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 5278c3eb6bf5896417572b52adb6be9d26e92f65Affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0baAffected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 364a66be2abdcd4fd426ffa44d9b8f40aafb3caaAffected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 120f7fa2008e3bd8b7680b4ab5df942decf60fd5Affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 9c9c68d64fd3284f7097ed6ae057c8441f39fcd3Affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0dAffected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 2000016bab499074e6248ea85aeea7dd762355d9Affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 67b8bcbaed4777871bb0dcc888fb02a614a98ab1Affected
LinuxLinux	2.6.30Affected before 2.6.30Not affected 4.19.307 through 4.19.Not affected 5.4.269 through 5.4.Not affected 5.10.210 through 5.10.Not affected 5.15.149 through 5.15.Not affected 6.1.79 through 6.1.Not affected 6.6.18 through 6.6.Not affected 6.7.6 through 6.7.*Not affected 6.8 and laterNot affected

Product

Versions

LinuxLinux

0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 5278c3eb6bf5896417572b52adb6be9d26e92f65Affected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0baAffected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 364a66be2abdcd4fd426ffa44d9b8f40aafb3caaAffected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 120f7fa2008e3bd8b7680b4ab5df942decf60fd5Affected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 9c9c68d64fd3284f7097ed6ae057c8441f39fcd3Affected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0dAffected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 2000016bab499074e6248ea85aeea7dd762355d9Affected
0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b to before 67b8bcbaed4777871bb0dcc888fb02a614a98ab1Affected

LinuxLinux

2.6.30Affected
before 2.6.30Not affected
4.19.307 through 4.19.*Not affected
5.4.269 through 5.4.*Not affected
5.10.210 through 5.10.*Not affected
5.15.149 through 5.15.*Not affected
6.1.79 through 6.1.*Not affected
6.6.18 through 6.6.*Not affected
6.7.6 through 6.7.*Not affected
6.8 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.