maple_tree: fix mas_prev() and mas_find() state handling

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commit 17dc622c7b upstream.

When mas_prev() does not find anything, set the state to MAS_NONE.

Handle the MAS_NONE in mas_find() like a MAS_START.

Link: https://lkml.kernel.org/r/20230120162650.984577-7-Liam.Howlett@oracle.com
Cc: <Stable@vger.kernel.org>
Fixes: 54a611b605 ("Maple Tree: add new data structure")
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reported-by: <syzbot+502859d610c661e56545@syzkaller.appspotmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Liam R. Howlett 2023-04-11 11:10:46 -04:00 • committed by Greg Kroah-Hartman

parent 19d8f782e3

commit 0a0372d1d2

1 changed files with 5 additions and 1 deletions

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lib/maple_tree.c

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