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netfilter: nfnetlink: skip error delivery on batch in case of ENOMEM

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If caller reports ENOMEM, then stop iterating over the batch and send a
single netlink message to userspace to report OOM.

Fixes: cbb8125eb4 ("netfilter: nfnetlink: deliver netlink errors on batch completion")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2023-06-08 00:19:12 +02:00
parent 212ed75dc5
commit a1a64a151d
1 changed files with 2 additions and 1 deletions
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3
net/netfilter/nfnetlink.c
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@ -533,7 +533,8 @@ ack:
* processed, this avoids that the same error is
* reported several times when replaying the batch.
*/
if (nfnl_err_add(&err_list, nlh, err, &extack) < 0) {
if (err == -ENOMEM ||
nfnl_err_add(&err_list, nlh, err, &extack) < 0) {
/* We failed to enqueue an error, reset the
* list of errors and send OOM to userspace
* pointing to the batch header.