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linux/drivers/md/dm-ioctl.c
Mikulas Patocka 76c6f845dc dm-ioctl: fix a possible overflow in list_version_get_info 
sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the
output buffer - info->vers->version[0], info->vers->version[1],
info->vers->version[2] and info->vers->next. This can cause buffer
overflow.

Fix this buffer overflow by replacing "sizeof(tt->version)" with
"sizeof(struct dm_target_versions)".

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Assisted-by: Claude:claude-opus-4.6
Cc: stable@vger.kernel.org
2026-07-10 14:40:51 +02:00

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