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| author | Liam R. Howlett <Liam.Howlett@oracle.com> | 2023-04-14 10:57:27 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-04-18 14:22:13 -0700 |
| commit | 06e8fd999334bcd76b4d72d7b9206d4aea89764e (patch) | |
| tree | 07ea252b9f0fad088ef0c4a22de9bbd057807461 /mm/mmap.c | |
| parent | fad8e4291da5e3243e086622df63cb952db444d8 (diff) | |
| download | linux-stable-06e8fd999334bcd76b4d72d7b9206d4aea89764e.tar.gz linux-stable-06e8fd999334bcd76b4d72d7b9206d4aea89764e.tar.bz2 linux-stable-06e8fd999334bcd76b4d72d7b9206d4aea89764e.zip | |
maple_tree: fix mas_empty_area() search
The internal function of mas_awalk() was incorrectly skipping the last
entry in a node, which could potentially be NULL. This is only a problem
for the left-most node in the tree - otherwise that NULL would not exist.
Fix mas_awalk() by using the metadata to obtain the end of the node for
the loop and the logical pivot as apposed to the raw pivot value.
Link: https://lkml.kernel.org/r/20230414145728.4067069-2-Liam.Howlett@oracle.com
Fixes: 54a611b60590 ("Maple Tree: add new data structure")
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reported-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
0 files changed, 0 insertions, 0 deletions