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tools: bpf_jit_disasm: fix segfault on disabled debugging log output
[firefly-linux-kernel-4.4.55.git]
/
tools
/
net
/
bpf_jit_disasm.c
diff --git
a/tools/net/bpf_jit_disasm.c
b/tools/net/bpf_jit_disasm.c
index c5baf9c591b7bb5a2c280e173f4e0a2b561285fa..618c2bcd4eabc6143b0e7f0431f57b8620101fe5 100644
(file)
--- a/
tools/net/bpf_jit_disasm.c
+++ b/
tools/net/bpf_jit_disasm.c
@@
-123,6
+123,8
@@
static int get_last_jit_image(char *haystack, size_t hlen,
assert(ret == 0);
ptr = haystack;
+ memset(pmatch, 0, sizeof(pmatch));
+
while (1) {
ret = regexec(®ex, ptr, 1, pmatch, 0);
if (ret == 0) {