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jfs: UBSAN: shift-out-of-bounds in dbFindBits
Fix issue with UBSAN throwing shift-out-of-bounds warning. Reported-by: syzbot+e38d703eeb410b17b473@syzkaller.appspotmail.com Signed-off-by: Remington Brasga <rbrasga@uci.edu> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
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@ -3022,7 +3022,7 @@ static int dbFindBits(u32 word, int l2nb)
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/* scan the word for nb free bits at nb alignments.
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*/
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for (bitno = 0; mask != 0; bitno += nb, mask >>= nb) {
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for (bitno = 0; mask != 0; bitno += nb, mask = (mask >> nb)) {
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if ((mask & word) == mask)
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break;
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}
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