[nft,v2] tests: shell: use-after-free from abort path
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Message ID 20190809124914.2005-1-pablo@netfilter.org
State Under Review
Delegated to: Pablo Neira
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Series
  • [nft,v2] tests: shell: use-after-free from abort path
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Commit Message

Pablo Neira Ayuso Aug. 9, 2019, 12:49 p.m. UTC
Rule that fails to be added while holding a bound set triggers
user-after-free from the abort path.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
v2: This one reproduces the crash here.

 tests/shell/testcases/transactions/0050rule_1 | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100755 tests/shell/testcases/transactions/0050rule_1

Patch
diff mbox series

diff --git a/tests/shell/testcases/transactions/0050rule_1 b/tests/shell/testcases/transactions/0050rule_1
new file mode 100755
index 000000000000..89e5f42fc9f4
--- /dev/null
+++ b/tests/shell/testcases/transactions/0050rule_1
@@ -0,0 +1,19 @@ 
+#!/bin/bash
+
+set -e
+
+RULESET="table inet filter {
+	flowtable ftable {
+		hook ingress priority 0; devices = { eno1, eno0, x };
+	}
+
+chain forward {
+	type filter hook forward priority 0; policy drop;
+
+	ip protocol { tcp, udp } ct mark and 1 == 1 counter flow add @ftable
+	ip6 nexthdr { tcp, udp } ct mark and 2 == 2 counter flow add @ftable
+	ct mark and 30 == 30 ct state established,related log prefix \"nftables accept: \" level info accept
+	}
+}"
+
+$NFT -f - <<< "$RULESET" >/dev/null || exit 0