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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-24 16:17:26 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-24 16:17:26 +0200
commitb62ed4c93ad71374b54d2c3a72cbc67b506f580c (patch)
tree6ca6ab974bbce902fc9de300fea6aa056170850f /drivers/memstick/core/ms_block.c
parent5895db67c12464003afd16c08049b73aa09e58ea (diff)
parent221fc2f4d0eda59d02af2e751a9282fa013a8e97 (diff)
Merge v6.18.40linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/memstick/core/ms_block.c')
-rw-r--r--drivers/memstick/core/ms_block.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index 1af157ce0a63..e3657efd045e 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -1339,6 +1339,10 @@ static int msb_ftl_initialize(struct msb_data *msb)
return 0;
msb->zone_count = msb->block_count / MS_BLOCKS_IN_ZONE;
+ if (msb->block_count > MS_MAX_ZONES * MS_BLOCKS_IN_ZONE) {
+ pr_err("Too many blocks: %d\n", msb->block_count);
+ return -EINVAL;
+ }
msb->logical_block_count = msb->zone_count * 496 - 2;
msb->used_blocks_bitmap = bitmap_zalloc(msb->block_count, GFP_KERNEL);