CVE-2023-53299

low-risk
Published 2025-09-16

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.

Do I need to act?

-
0.02% 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 (9)

Patch https://git.kernel.org/stable/c/11141630f03efffdfe260b3582b2d93d38171b97
Patch https://git.kernel.org/stable/c/1697fb124c6d6c5237e9cbd78890310154738084
Patch https://git.kernel.org/stable/c/1d2c6c6e37fe5de11fd01a82badf03390e12df7a
Patch https://git.kernel.org/stable/c/26208a7cffd0c7cbf14237ccd20c7270b3ffeb7e
Patch https://git.kernel.org/stable/c/3481dec5ecbbbbe44ab23e22c2b14bd65c644ec6
Patch https://git.kernel.org/stable/c/4f82e7e07cdaf2947d71968e3d6b73370a217093
Patch https://git.kernel.org/stable/c/8c5d5d7ffd1e76734811b8ea5417cf0432b9952c
Patch https://git.kernel.org/stable/c/8d09065802c53cc938d162b62f6c4150b392c90e
Patch https://git.kernel.org/stable/c/cb827ed2bb34480dc102146d3a1f89fdbcafc028
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal