summaryrefslogtreecommitdiff
path: root/fs/hfs/btree.h
diff options
context:
space:
mode:
authorErnesto A. Fernández <ernesto.mnd.fernandez@gmail.com>2018-10-30 15:06:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-31 08:54:13 -0700
commitef75bcc5763d130451a99825f247d301088b790b (patch)
treeac637aed5cc75bf4be8e21fec09598ad78f43d12 /fs/hfs/btree.h
parentd057c036672f33d43a5f7344acbb08cf3a8a0c09 (diff)
hfs: fix BUG on bnode parent update
hfs_brec_update_parent() may hit BUG_ON() if the first record of both a leaf node and its parent are changed, and if this forces the parent to be split. It is not possible for this to happen on a valid hfs filesystem because the index nodes have fixed length keys. For reasons I ignore, the hfs module does have support for a number of hfsplus features. A corrupt btree header may report variable length keys and trigger this BUG, so it's better to fix it. Link: http://lkml.kernel.org/r/cf9b02d57f806217a2b1bf5db8c3e39730d8f603.1535682463.git.ernesto.mnd.fernandez@gmail.com Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hfs/btree.h')
0 files changed, 0 insertions, 0 deletions