CVE-2026-46045

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: skip reading rdevs that are not in_sync When reading bitmap pages from member disks, the code iterates through all rdevs and attempts to read from the first available one. However, it only checks for raid_disk assignment and Faulty flag, missing the In_sync flag check. This can cause bitmap data to be read from spare disks that are still being rebuilt and don't have valid bitmap information yet. Reading stale or uninitialized bitmap data from such disks can lead to incorrect dirty bit tracking, potentially causing data corruption during recovery or normal operation. Add the In_sync flag check to ensure bitmap pages are only read from fully synchronized member disks that have valid bitmap data.

• CWE-787

• https://git.kernel.org/stable/c/3115fa2f62970d98f2a639145fb8e2767db8bbf9Patch
• https://git.kernel.org/stable/c/7701e68b5072faa03a8f30b4081dc16df9092381Patch
• https://git.kernel.org/stable/c/98623c7e2a51eab1833c8628d33fa9c6ef3ce325Patch

Published

May 27, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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