mtd: tests: fix read buffer overflows
Check whether index is within bounds before testing the element. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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@ -512,7 +512,7 @@ static int __init mtd_oobtest_init(void)
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goto out;
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addr0 = 0;
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for (i = 0; bbt[i] && i < ebcnt; ++i)
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for (i = 0; i < ebcnt && bbt[i]; ++i)
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addr0 += mtd->erasesize;
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/* Attempt to write off end of OOB */
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@ -116,11 +116,11 @@ static int verify_eraseblock(int ebnum)
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loff_t addr = ebnum * mtd->erasesize;
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addr0 = 0;
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for (i = 0; bbt[i] && i < ebcnt; ++i)
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for (i = 0; i < ebcnt && bbt[i]; ++i)
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addr0 += mtd->erasesize;
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addrn = mtd->size;
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for (i = 0; bbt[ebcnt - i - 1] && i < ebcnt; ++i)
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for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i)
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addrn -= mtd->erasesize;
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set_random_data(writebuf, mtd->erasesize);
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@ -219,11 +219,11 @@ static int crosstest(void)
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memset(pp1, 0, pgsize * 4);
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addr0 = 0;
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for (i = 0; bbt[i] && i < ebcnt; ++i)
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for (i = 0; i < ebcnt && bbt[i]; ++i)
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addr0 += mtd->erasesize;
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addrn = mtd->size;
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for (i = 0; bbt[ebcnt - i - 1] && i < ebcnt; ++i)
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for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i)
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addrn -= mtd->erasesize;
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/* Read 2nd-to-last page to pp1 */
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@ -317,7 +317,7 @@ static int erasecrosstest(void)
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ebnum = 0;
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addr0 = 0;
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for (i = 0; bbt[i] && i < ebcnt; ++i) {
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for (i = 0; i < ebcnt && bbt[i]; ++i) {
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addr0 += mtd->erasesize;
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ebnum += 1;
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}
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@ -413,7 +413,7 @@ static int erasetest(void)
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ebnum = 0;
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addr0 = 0;
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for (i = 0; bbt[i] && i < ebcnt; ++i) {
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for (i = 0; i < ebcnt && bbt[i]; ++i) {
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addr0 += mtd->erasesize;
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ebnum += 1;
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}
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