CVE-2025-21712 md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: Synchronize bitmapgetstats with bitmap lifetime After commit ec6bb299c7c3 "md/md-bitmap: add 'syncsize' into struct mdbitmapstats", following panic is reported: Oops: general protection fault, probably for...

CVE-2025-21712 md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: Synchronize bitmapgetstats with bitmap lifetime After commit ec6bb299c7c3 "md/md-bitmap: add 'syncsize' into struct mdbitmapstats", following panic is reported: Oops: general protection fault, probably for...

CVE-2025-21712

In the Linux kernel, the md/md-bitmap component had a race where bitmap_get_stats() could be called while the bitmap storage was destroyed or not fully initialized, risking a general protection fault. The root cause was dereferencing bitmap->storage outside a synchronized lifetime of the bitma...