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| author | Ameer Hamza <amhamza.mgc@gmail.com> | 2021-12-05 21:38:10 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-08 07:57:17 +0300 |
| commit | e6f60c51f0435862020bcd2d1e3257caaafe5650 (patch) | |
| tree | 7fcbead3e075c414d5149ef2337269e0bde79302 /drivers/net/ethernet/google | |
| parent | 6ebe4b350833a535d1df02591911b5f5fba3b275 (diff) | |
| download | linux-e6f60c51f0435862020bcd2d1e3257caaafe5650.tar.xz | |
gve: fix for null pointer dereference.
Avoid passing NULL skb to __skb_put() function call if
napi_alloc_skb() returns NULL.
Fixes: 37149e9374bf ("gve: Implement packet continuation for RX.")
Signed-off-by: Ameer Hamza <amhamza.mgc@gmail.com>
Link: https://lore.kernel.org/r/20211205183810.8299-1-amhamza.mgc@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/google')
| -rw-r--r-- | drivers/net/ethernet/google/gve/gve_utils.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/google/gve/gve_utils.c b/drivers/net/ethernet/google/gve/gve_utils.c index 88ca49cbc1e2..d57508bc4307 100644 --- a/drivers/net/ethernet/google/gve/gve_utils.c +++ b/drivers/net/ethernet/google/gve/gve_utils.c @@ -68,6 +68,9 @@ struct sk_buff *gve_rx_copy(struct net_device *dev, struct napi_struct *napi, set_protocol = ctx->curr_frag_cnt == ctx->expected_frag_cnt - 1; } else { skb = napi_alloc_skb(napi, len); + + if (unlikely(!skb)) + return NULL; set_protocol = true; } __skb_put(skb, len); |