svn commit: r347527 - head/sys/net

[Andrey V. Elsukov]

Author: ae
Date: Mon May 13 14:07:02 2019
New Revision: 347527
URL: https://svnweb.freebsd.org/changeset/base/347527

Log:
  Do not leak memory used for binary filter.

Modified:
  head/sys/net/bpf.c

Modified: head/sys/net/bpf.c
==============================================================================
--- head/sys/net/bpf.c	Mon May 13 13:45:28 2019	(r347526)
+++ head/sys/net/bpf.c	Mon May 13 14:07:02 2019	(r347527)
@@ -2628,11 +2628,17 @@ bpfd_free(epoch_context_t ctx)
 	if (d->bd_rfilter != NULL) {
 		p = __containerof((void *)d->bd_rfilter,
 		    struct bpf_program_buffer, buffer);
+#ifdef BPF_JITTER
+		p->func = d->bd_bfilter;
+#endif
 		bpf_program_buffer_free(&p->epoch_ctx);
 	}
 	if (d->bd_wfilter != NULL) {
 		p = __containerof((void *)d->bd_wfilter,
 		    struct bpf_program_buffer, buffer);
+#ifdef BPF_JITTER
+		p->func = NULL;
+#endif
 		bpf_program_buffer_free(&p->epoch_ctx);
 	}