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| author | Liam Howlett <liam.howlett@oracle.com> | 2023-01-11 21:02:07 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-01 01:44:07 +0100 |
| commit | 7327e8111adb315423035fb5233533016dfd3f2e (patch) | |
| tree | 0276d59dc69b7d37bb6d3231481216bdcdfaa533 /kernel/kexec_elf.c | |
| parent | selftests/filesystems: grant executable permission to run_fat_tests.sh (diff) | |
| download | linux-7327e8111adb315423035fb5233533016dfd3f2e.tar.xz linux-7327e8111adb315423035fb5233533016dfd3f2e.zip | |
maple_tree: fix mas_empty_area_rev() lower bound validation
mas_empty_area_rev() was not correctly validating the start of a gap
against the lower limit. This could lead to the range starting lower than
the requested minimum.
Fix the issue by better validating a gap once one is found.
This commit also adds tests to the maple tree test suite for this issue
and tests the mas_empty_area() function for similar bound checking.
Link: https://lkml.kernel.org/r/20230111200136.1851322-1-Liam.Howlett@oracle.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216911
Fixes: 54a611b60590 ("Maple Tree: add new data structure")
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reported-by: <amanieu@gmail.com>
Link: https://lore.kernel.org/linux-mm/0b9f5425-08d4-8013-aa4c-e620c3b10bb2@leemhuis.info/
Tested-by: Holger Hoffsttte <holger@applied-asynchrony.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/kexec_elf.c')
0 files changed, 0 insertions, 0 deletions