CVE-2023-53299

md/raid10: fix leak of 'r10bio->remaining' for recovery

State: Published
Severity: 5.5 Medium
Published: Sep 16, 2025
Updated: May 11, 2026
Reserved: Sep 16, 2025

Description

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

md/raid10: fix leak of 'r10bio->remaining' for recovery

raid10_sync_request() will add 'r10bio->remaining' for both rdev and replacement rdev. However, if the read io fails, recovery_request_write() returns without issuing the write io, in this case, end_sync_request() is only called once and 'remaining' is leaked, cause an io hang.

Fix the problem by decreasing 'remaining' according to if 'bio' and 'repl_bio' is valid.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
LinuxLinux	24afd80d99f80a79d8824d2805114b8b067e9823 to before cb827ed2bb34480dc102146d3a1f89fdbcafc028Affected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 1d2c6c6e37fe5de11fd01a82badf03390e12df7aAffected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 8c5d5d7ffd1e76734811b8ea5417cf0432b9952cAffected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 1697fb124c6d6c5237e9cbd78890310154738084Affected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 8d09065802c53cc938d162b62f6c4150b392c90eAffected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 11141630f03efffdfe260b3582b2d93d38171b97Affected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 3481dec5ecbbbbe44ab23e22c2b14bd65c644ec6Affected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 4f82e7e07cdaf2947d71968e3d6b73370a217093Affected 24afd80d99f80a79d8824d2805114b8b067e9823 to before 26208a7cffd0c7cbf14237ccd20c7270b3ffeb7eAffected
LinuxLinux	3.3Affected before 3.3Not 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 5.15.111 through 5.15.Not affected 6.1.28 through 6.1.Not affected 6.2.15 through 6.2.Not affected 6.3.2 through 6.3.Not affected 6.4 and laterNot affected

Product

Versions

LinuxLinux

24afd80d99f80a79d8824d2805114b8b067e9823 to before cb827ed2bb34480dc102146d3a1f89fdbcafc028Affected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 1d2c6c6e37fe5de11fd01a82badf03390e12df7aAffected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 8c5d5d7ffd1e76734811b8ea5417cf0432b9952cAffected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 1697fb124c6d6c5237e9cbd78890310154738084Affected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 8d09065802c53cc938d162b62f6c4150b392c90eAffected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 11141630f03efffdfe260b3582b2d93d38171b97Affected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 3481dec5ecbbbbe44ab23e22c2b14bd65c644ec6Affected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 4f82e7e07cdaf2947d71968e3d6b73370a217093Affected
24afd80d99f80a79d8824d2805114b8b067e9823 to before 26208a7cffd0c7cbf14237ccd20c7270b3ffeb7eAffected

LinuxLinux

3.3Affected
before 3.3Not 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
5.15.111 through 5.15.*Not affected
6.1.28 through 6.1.*Not affected
6.2.15 through 6.2.*Not affected
6.3.2 through 6.3.*Not affected
6.4 and laterNot affected

References

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