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irda: precedence bug in irlmp_seq_hb_idx()

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This is decrementing the pointer, instead of the value stored in the
pointer.  KASan detects it as an out of bounds reference.

Reported-by: "Berry Cheng 程君(成淼)" <[email protected]>
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Dan Carpenter 2015-10-19 13:16:49 +03:00 • committed by David S. Miller
commit 50010c2059
1 changed files with 1 additions and 1 deletions
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2
net/irda/irlmp.c
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@ -1839,7 +1839,7 @@ static void *irlmp_seq_hb_idx(struct irlmp_iter_state *iter, loff_t *off)
for (element = hashbin_get_first(iter->hashbin);
element != NULL;
element = hashbin_get_next(iter->hashbin)) {
if (!off || *off-- == 0) {
if (!off || (*off)-- == 0) {
/* NB: hashbin left locked */
return element;
}