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| author | Andrii Nakryiko <andrii@kernel.org> | 2022-02-16 23:39:58 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 13:58:07 +0200 |
| commit | c3d665699e872061bdcd014fb462188d66b94b57 (patch) | |
| tree | 0918f4e93747034698507e57c39b5b6b2b4ab5d3 /tools | |
| parent | 0da0a33b87d1a0715bd5e18c3b77e8dafe8319a7 (diff) | |
| download | linux-stable-c3d665699e872061bdcd014fb462188d66b94b57.tar.gz linux-stable-c3d665699e872061bdcd014fb462188d66b94b57.tar.bz2 linux-stable-c3d665699e872061bdcd014fb462188d66b94b57.zip | |
libbpf: Fix memleak in libbpf_netlink_recv()
[ Upstream commit 1b8c924a05934d2e758ec7da7bd217ef8ebd80ce ]
Ensure that libbpf_netlink_recv() frees dynamically allocated buffer in
all code paths.
Fixes: 9c3de619e13e ("libbpf: Use dynamically allocated buffer when receiving netlink messages")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20220217073958.276959-1-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/lib/bpf/netlink.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/lib/bpf/netlink.c b/tools/lib/bpf/netlink.c index 69b353d55dbf..fadde7d80a51 100644 --- a/tools/lib/bpf/netlink.c +++ b/tools/lib/bpf/netlink.c @@ -176,7 +176,8 @@ start: libbpf_nla_dump_errormsg(nh); goto done; case NLMSG_DONE: - return 0; + ret = 0; + goto done; default: break; } @@ -188,9 +189,10 @@ start: case NL_NEXT: goto start; case NL_DONE: - return 0; + ret = 0; + goto done; default: - return ret; + goto done; } } } |