linux/arch/x86/net
Daniel Borkmann 3aab8884c9 bpf, x64: fix memleak when not converging after image
While reviewing x64 JIT code, I noticed that we leak the prior allocated
JIT image in the case where proglen != oldproglen during the JIT passes.
Prior to the commit e0ee9c1215 ("x86: bpf_jit: fix two bugs in eBPF JIT
compiler") we would just break out of the loop, and using the image as the
JITed prog since it could only shrink in size anyway. After e0ee9c1215,
we would bail out to out_addrs label where we free addrs and jit_data but
not the image coming from bpf_jit_binary_alloc().

Fixes: e0ee9c1215 ("x86: bpf_jit: fix two bugs in eBPF JIT compiler")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-05-02 12:35:47 -07:00
..
bpf_jit_comp.c bpf, x64: fix memleak when not converging after image 2018-05-02 12:35:47 -07:00
bpf_jit.S bpf: change x86 JITed program stack layout 2017-05-31 19:29:48 -04:00
Makefile objtool, x86: Add several functions and files to the objtool whitelist 2017-06-30 10:19:19 +02:00