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| author | Dongliang Mu <mudongliangabcd@gmail.com> | 2021-07-14 11:27:03 +0800 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-07-17 02:25:18 +0200 |
| commit | cfbe3650dd3ef2ea9a4420ca89d9a4df98af3fb6 (patch) | |
| tree | 8738d38fb130cd1daa3ce142ab653f3a54036d2b /tools/perf/scripts/python/stackcollapse.py | |
| parent | 5f119ba1d5771bbf46d57cff7417dcd84d3084ba (diff) | |
netfilter: nf_tables: fix audit memory leak in nf_tables_commit
In nf_tables_commit, if nf_tables_commit_audit_alloc fails, it does not
free the adp variable.
Fix this by adding nf_tables_commit_audit_free which frees
the linked list with the head node adl.
backtrace:
kmalloc include/linux/slab.h:591 [inline]
kzalloc include/linux/slab.h:721 [inline]
nf_tables_commit_audit_alloc net/netfilter/nf_tables_api.c:8439 [inline]
nf_tables_commit+0x16e/0x1760 net/netfilter/nf_tables_api.c:8508
nfnetlink_rcv_batch+0x512/0xa80 net/netfilter/nfnetlink.c:562
nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:634 [inline]
nfnetlink_rcv+0x1fa/0x220 net/netfilter/nfnetlink.c:652
netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
netlink_unicast+0x2c7/0x3e0 net/netlink/af_netlink.c:1340
netlink_sendmsg+0x36b/0x6b0 net/netlink/af_netlink.c:1929
sock_sendmsg_nosec net/socket.c:702 [inline]
sock_sendmsg+0x56/0x80 net/socket.c:722
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: c520292f29b8 ("audit: log nftables configuration change events once per table")
Signed-off-by: Dongliang Mu <mudongliangabcd@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions