CVE-2023-53299
md/raid10: fix leak of 'r10bio->remaining' for recovery
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.3
References 9
git.kernel.org
- stable/c/cb827ed2bb34480dc102146d3a1f89fdbcafc028
- stable/c/1d2c6c6e37fe5de11fd01a82badf03390e12df7a
- stable/c/8c5d5d7ffd1e76734811b8ea5417cf0432b9952c
- stable/c/1697fb124c6d6c5237e9cbd78890310154738084
- stable/c/8d09065802c53cc938d162b62f6c4150b392c90e
- stable/c/11141630f03efffdfe260b3582b2d93d38171b97
- stable/c/3481dec5ecbbbbe44ab23e22c2b14bd65c644ec6
- stable/c/4f82e7e07cdaf2947d71968e3d6b73370a217093
- stable/c/26208a7cffd0c7cbf14237ccd20c7270b3ffeb7e