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Commit f1c38974 authored by Tom Cherry's avatar Tom Cherry Committed by Automerger Merge Worker
Browse files

fsmgr: fix integer overflow in fs_mgr am: e28dc48d am: 782c0236 

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/11882481

Change-Id: I0b906d30fff393ae5d2cef1988af37cabf944ffa
parents fe9e0745 782c0236

fs_mgr/fs_mgr.cpp

+1 −1
Original line number Diff line number Diff line
@@ -331,7 +331,7 @@ static bool read_ext4_superblock(const std::string& blk_device, const FstabEntry 
            // try backup superblock, if main superblock is corrupted

            for (unsigned int blocksize = EXT4_MIN_BLOCK_SIZE; blocksize <= EXT4_MAX_BLOCK_SIZE;

                 blocksize *= 2) {

                unsigned int superblock = blocksize * 8;

                uint64_t superblock = blocksize * 8;

                if (blocksize == EXT4_MIN_BLOCK_SIZE) superblock++;



                if (TEMP_FAILURE_RETRY(pread(fd, sb, sizeof(*sb), superblock * blocksize)) !=