Previously it was possible to increment `processed_jobs` to a value
greater than requested `nb_ops`, because after flushing at most
`nb_ops` jobs the while loop continued, so `processed_jobs` could
still be incremented and it was possible for this variable to be
greater than `nb_ops`. If `ops` provided to the function were
only `nb_ops` long, then the `aesni_mb_dequeue_burst()` would
write to the memory outside of `ops` array.
Fixes: b50b8b5b38f8 ("crypto/ipsec_mb: use burst API in AESNI")
Cc: [email protected]
Signed-off-by: Krzysztof Karas <[email protected]>
---
drivers/crypto/ipsec_mb/pmd_aesni_mb.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
b/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
index 9e298023d7..ff52bc85a4 100644
--- a/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
+++ b/drivers/crypto/ipsec_mb/pmd_aesni_mb.c
@@ -2056,7 +2056,7 @@ aesni_mb_dequeue_burst(void *queue_pair, struct
rte_crypto_op **ops,
uint16_t n = (nb_ops / burst_sz) ?
burst_sz : nb_ops;
- while (unlikely((IMB_GET_NEXT_BURST(mb_mgr, n, jobs)) < n)) {
+ if (unlikely((IMB_GET_NEXT_BURST(mb_mgr, n, jobs)) < n)) {
/*
* Not enough free jobs in the queue
* Flush n jobs until enough jobs available
@@ -2074,6 +2074,8 @@ aesni_mb_dequeue_burst(void *queue_pair, struct
rte_crypto_op **ops,
break;
}
}
+ nb_ops -= nb_jobs;
+ continue;
}
/*
--
2.34.1
---------------------------------------------------------------------
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