CVE-2023-53299 - md/raid10: fix leak of 'r10bio->remaining' for recovery

CVE-2023-53299 - md/raid10: fix leak of 'r10bio->remaining' for recovery

https://cvefeed.io/rssfeed/latest.atom / Tue, 09/16/2025 - 14:39
CVE ID : CVE-2023-53299
Published : Sept. 16, 2025, 8:11 a.m. | 3 hours, 58 minutes ago
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.
Severity: 0.0 | NA
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