CVE-2023-53299
md/raid10: fix leak of 'r10bio->remaining' for recovery
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/11141630f03efffdfe260b3582b2d93d38171b97
- https://git.kernel.org/stable/c/1697fb124c6d6c5237e9cbd78890310154738084
- https://git.kernel.org/stable/c/1d2c6c6e37fe5de11fd01a82badf03390e12df7a
- https://git.kernel.org/stable/c/26208a7cffd0c7cbf14237ccd20c7270b3ffeb7e
- https://git.kernel.org/stable/c/3481dec5ecbbbbe44ab23e22c2b14bd65c644ec6
References (9)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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