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D21104.id60254.diff
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D21104.id60254.diff

Index: contrib/elftoolchain/addr2line/addr2line.c
===================================================================
--- contrib/elftoolchain/addr2line/addr2line.c
+++ contrib/elftoolchain/addr2line/addr2line.c
@@ -25,6 +25,8 @@
*/
#include <sys/param.h>
+
+#include <capsicum_helpers.h>
#include <dwarf.h>
#include <err.h>
#include <fcntl.h>
@@ -649,6 +651,7 @@
int
main(int argc, char **argv)
{
+ cap_rights_t rights;
Elf *e;
Dwarf_Debug dbg;
Dwarf_Error de;
@@ -706,6 +709,16 @@
if ((fd = open(exe, O_RDONLY)) < 0)
err(EXIT_FAILURE, "%s", exe);
+ if (caph_rights_limit(fd, cap_rights_init(&rights, CAP_FSTAT,
+ CAP_MMAP_R)) < 0)
+ errx(EXIT_FAILURE, "caph_rights_limit");
+
+ caph_cache_catpages();
+ if (caph_limit_stdio() < 0)
+ errx(EXIT_FAILURE, "failed to limit stdio rights");
+ if (caph_enter() < 0)
+ errx(EXIT_FAILURE, "failed to enter capability mode");
+
if (dwarf_init(fd, DW_DLC_READ, NULL, NULL, &dbg, &de))
errx(EXIT_FAILURE, "dwarf_init: %s", dwarf_errmsg(de));

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