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vdev_draid_lookup_map() should not iterate outside draid_maps

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Coverity reported this as an out-of-bounds read.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Neal Gompa <ngompa@datto.com>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13865
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Richard Yao 2022-09-12 15:51:17 -04:00 committed by GitHub
parent 7195c04d98
commit e5327e7f97
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1 changed files with 1 additions and 1 deletions
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module/zfs/vdev_draid.c
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@ -541,7 +541,7 @@ vdev_draid_generate_perms(const draid_map_t *map, uint8_t **permsp)
int
vdev_draid_lookup_map(uint64_t children, const draid_map_t **mapp)
{
for (int i = 0; i <= VDEV_DRAID_MAX_MAPS; i++) {
for (int i = 0; i < VDEV_DRAID_MAX_MAPS; i++) {
if (draid_maps[i].dm_children == children) {
*mapp = &draid_maps[i];
return (0);