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mirror-linux/tools/testing/radix-tree
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Matthew Wilcox (Oracle) c6e8e595a0 idr: fix idr_alloc() returning an ID out of range 
If you use an IDR with a non-zero base, and specify a range that lies
entirely below the base, 'max - base' becomes very large and
idr_get_free() can return an ID that lies outside of the requested range.

Link: https://lkml.kernel.org/r/20251128161853.3200058-1-willy@infradead.org
Fixes: 6ce711f275 ("idr: Make 1-based IDRs more efficient")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reported-by: Jan Sokolowski <jan.sokolowski@intel.com>
Reported-by: Koen Koning <koen.koning@intel.com>
Reported-by: Peter Senna Tschudin <peter.senna@linux.intel.com>
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/6449
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 		2025-12-23 11:23:11 -08:00
..
.gitignore tools: separate out shared radix-tree components 2024-09-01 20:25:55 -07:00
Makefile xarray: add xas_try_split() to split a multi-index entry 2025-03-17 22:06:59 -07:00
benchmark.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
idr-test.c idr: fix idr_alloc() returning an ID out of range 2025-12-23 11:23:11 -08:00
iteration_check.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
iteration_check_2.c xarray: Fix early termination of xas_for_each_marked 2020-03-12 17:42:08 -04:00
main.c xarray: Fix early termination of xas_for_each_marked 2020-03-12 17:42:08 -04:00
maple.c Summary of significant series in this pull request: 2025-10-02 18:18:33 -07:00
multiorder.c Xarray: do not return sibling entries from xas_find_marked() 2025-01-24 22:47:27 -08:00
regression.h radix tree: Don't return retry entries from lookup 2018-12-06 08:26:16 -05:00
regression1.c radix tree test suite: fix incorrect allocation size for pthreads 2023-08-04 13:03:40 -07:00
regression2.c
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regression3.c
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regression4.c radix tree: Don't return retry entries from lookup 2018-12-06 08:26:16 -05:00
tag_check.c
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test.c
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test.h radix tree test suite: Fix compilation 2020-10-07 09:07:49 -04:00
xarray.c tools: separate out shared radix-tree components 2024-09-01 20:25:55 -07:00