iptables/0102-iptables-restore-Free-handle-with-test-also.patch
Phil Sutter 1c8d6d0d32 iptables-1.8.5-1.el8
- Rebase to version 1.8.5 plus upstream-indicated fixes
- Fix for duplicate files in RPM due to imprecise globbing
- Drop bootstrap code again

Resolves: rhbz#2211063
2023-05-30 14:47:41 +02:00

48 lines
1.6 KiB
Diff

From a1d05d4c6ac02bed334c55f611bff08decff89e6 Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Fri, 25 Nov 2022 19:24:38 +0100
Subject: [PATCH] iptables-restore: Free handle with --test also
When running 'iptables-restore -t', valgrind reports:
1,496 (160 direct, 1,336 indirect) bytes in 1 blocks are definitely lost in loss record 4 of 4
at 0x48417E5: malloc (vg_replace_malloc.c:381)
by 0x4857A46: alloc_handle (libiptc.c:1279)
by 0x4857A46: iptc_init (libiptc.c:1342)
by 0x1167CE: create_handle (iptables-restore.c:72)
by 0x1167CE: ip46tables_restore_main (iptables-restore.c:229)
by 0x116DAE: iptables_restore_main (iptables-restore.c:388)
by 0x49A2349: (below main) (in /lib64/libc.so.6)
Free the handle pointer before parsing the next table.
Fixes: 1c9015b2cb483 ("libiptc: remove indirections")
Signed-off-by: Phil Sutter <phil@nwl.cc>
(cherry picked from commit 18880dbde615449d00a3e38f3713a19d4566258e)
---
iptables/iptables-restore.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/iptables/iptables-restore.c b/iptables/iptables-restore.c
index a34d95015c93c..3b821467db355 100644
--- a/iptables/iptables-restore.c
+++ b/iptables/iptables-restore.c
@@ -187,12 +187,12 @@ ip46tables_restore_main(const struct iptables_restore_cb *cb,
if (!testing) {
DEBUGP("Calling commit\n");
ret = cb->ops->commit(handle);
- cb->ops->free(handle);
- handle = NULL;
} else {
DEBUGP("Not calling commit, testing\n");
ret = 1;
}
+ cb->ops->free(handle);
+ handle = NULL;
/* Done with the current table, release the lock. */
if (lock >= 0) {
--
2.40.0