CVE-2023-53285

ext4: add bounds checking in get_max_inline_xattr_value_size()

State: Published
Severity: 7.1 High
Published: Sep 16, 2025
Updated: Aug 5, 2026
Reserved: Sep 16, 2025

Description

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

ext4: add bounds checking in get_max_inline_xattr_value_size()

Normally the extended attributes in the inode body would have been checked when the inode is first opened, but if someone is writing to the block device while the file system is mounted, it's possible for the inode table to get corrupted. Add bounds checking to avoid reading beyond the end of allocated memory if this happens.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	Linux
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	67cf5b09a46f72e048501b84996f2f77bc42e947 to before 5a229d21b98d132673096710e8281ef522dab1d1Affected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before 3d7b8fbcd2273e2b9f4c6de5ce2f4c0cd3cb1205Affected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before 486efbbc9445dca7890a1b86adbccb88b91284b0Affected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before 4597554b4f7b29e7fd78aa449bab648f8da4ee2cAffected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before f22b274429e88d3dc7e79d375b56ce4f2f59f0b4Affected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before 1d2caddbeeee56fbbc36b428c5b909c3ad88eb7fAffected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before e780058bd75614b66882bc02620ddbd884171560Affected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before 88a06a94942c5c0a896e9da1113a6bb29e36cbefAffected 67cf5b09a46f72e048501b84996f2f77bc42e947 to before 2220eaf90992c11d888fe771055d4de330385f01Affected
LinuxLinux	3.8Affected before 3.8Not affected 4.14.315 through 4.14.Not affected 4.19.283 through 4.19.Not affected 5.4.243 through 5.4.Not affected 5.10.180 through 5.10.Not affected 5.15.112 through 5.15.Not affected 6.1.29 through 6.1.Not affected 6.2.16 through 6.2.Not affected 6.3.3 through 6.3.Not affected 6.4 and laterNot affected

Product

Versions

LinuxLinux

67cf5b09a46f72e048501b84996f2f77bc42e947 to before 5a229d21b98d132673096710e8281ef522dab1d1Affected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before 3d7b8fbcd2273e2b9f4c6de5ce2f4c0cd3cb1205Affected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before 486efbbc9445dca7890a1b86adbccb88b91284b0Affected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before 4597554b4f7b29e7fd78aa449bab648f8da4ee2cAffected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before f22b274429e88d3dc7e79d375b56ce4f2f59f0b4Affected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before 1d2caddbeeee56fbbc36b428c5b909c3ad88eb7fAffected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before e780058bd75614b66882bc02620ddbd884171560Affected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before 88a06a94942c5c0a896e9da1113a6bb29e36cbefAffected
67cf5b09a46f72e048501b84996f2f77bc42e947 to before 2220eaf90992c11d888fe771055d4de330385f01Affected

LinuxLinux

3.8Affected
before 3.8Not affected
4.14.315 through 4.14.*Not affected
4.19.283 through 4.19.*Not affected
5.4.243 through 5.4.*Not affected
5.10.180 through 5.10.*Not affected
5.15.112 through 5.15.*Not affected
6.1.29 through 6.1.*Not affected
6.2.16 through 6.2.*Not affected
6.3.3 through 6.3.*Not affected
6.4 and laterNot affected

References

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