CVE-2023-53299
md/raid10: fix leak of 'r10bio->remaining' for recovery
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.
INFO
Published Date :
Sept. 16, 2025, 8:11 a.m.
Last Modified :
Sept. 16, 2025, 8:11 a.m.
Remotely Exploit :
No
Source :
Linux
Affected Products
The following products are affected by CVE-2023-53299
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Apply the Linux kernel patch for raid10 recovery.
- Ensure 'remaining' is decremented correctly.
- Test recovery operations after applying the fix.
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