From 6b875fa3abc98536ad94d186876af67f6162969d Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Tue, 9 Jul 2019 19:40:31 +0200 Subject: Sanity check id table size read from super block Signed-off-by: David Oberhollenzer --- lib/sqfs/read_super.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'lib') diff --git a/lib/sqfs/read_super.c b/lib/sqfs/read_super.c index 801bf7f..7b738ea 100644 --- a/lib/sqfs/read_super.c +++ b/lib/sqfs/read_super.c @@ -88,6 +88,11 @@ int sqfs_super_read(sqfs_super_t *super, int fd) return -1; } + if (temp.id_count == 0) { + fputs("ID table in squashfs image is empty.\n", stderr); + return -1; + } + memcpy(super, &temp, sizeof(temp)); return 0; fail_seek: -- cgit v1.2.3