Mark Johnston ace3d9475c ffs: Avoid out-of-bounds accesses in the fs_active bitmap ... We use a bitmap to track which cylinder groups have changed between snapshot creation and filesystem suspension. The "legs" of the bitmap are four bytes wide (see ACTIVESET()) so we must round up the allocation size to a multiple of four bytes. I believe this bug is harmless since UMA/kmem_* will both pad the allocation and zero the full allocation. Note that malloc() does inline zeroing when the allocation size is known at compile-time. Reported by: pho (using KASAN) Reviewed by: kib, mckusick MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D27731		2020-12-23 11:16:40 -05:00
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ffs	ffs: Avoid out-of-bounds accesses in the fs_active bitmap	2020-12-23 11:16:40 -05:00
ufs	Document the BA_CLRBUF flag used in ufs and ext2fs filesystems.	2020-12-06 20:50:21 +00:00