49 lines
1.7 KiB
Diff
49 lines
1.7 KiB
Diff
From 18880dbde615449d00a3e38f3713a19d4566258e Mon Sep 17 00:00:00 2001
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From: Phil Sutter <phil@nwl.cc>
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Date: Fri, 25 Nov 2022 19:24:38 +0100
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Subject: [PATCH] iptables-restore: Free handle with --test also
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When running 'iptables-restore -t', valgrind reports:
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1,496 (160 direct, 1,336 indirect) bytes in 1 blocks are definitely lost in loss record 4 of 4
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at 0x48417E5: malloc (vg_replace_malloc.c:381)
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by 0x4857A46: alloc_handle (libiptc.c:1279)
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by 0x4857A46: iptc_init (libiptc.c:1342)
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by 0x1167CE: create_handle (iptables-restore.c:72)
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by 0x1167CE: ip46tables_restore_main (iptables-restore.c:229)
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by 0x116DAE: iptables_restore_main (iptables-restore.c:388)
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by 0x49A2349: (below main) (in /lib64/libc.so.6)
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Free the handle pointer before parsing the next table.
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Conflict: NA
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Reference: https://git.netfilter.org/iptables/commit?id=18880dbde615449d00a3e38f3713a19d4566258e
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Fixes: 1c9015b2cb483 ("libiptc: remove indirections")
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Signed-off-by: Phil Sutter <phil@nwl.cc>
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---
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iptables/iptables-restore.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/iptables/iptables-restore.c b/iptables/iptables-restore.c
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index 05661bf6..6f7ddf93 100644
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--- a/iptables/iptables-restore.c
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+++ b/iptables/iptables-restore.c
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@@ -185,12 +185,12 @@ ip46tables_restore_main(const struct iptables_restore_cb *cb,
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if (!testing) {
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DEBUGP("Calling commit\n");
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ret = cb->ops->commit(handle);
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- cb->ops->free(handle);
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- handle = NULL;
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} else {
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DEBUGP("Not calling commit, testing\n");
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ret = 1;
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}
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+ cb->ops->free(handle);
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+ handle = NULL;
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/* Done with the current table, release the lock. */
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if (lock >= 0) {
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--
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2.23.0
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