diff options
Diffstat (limited to 'lib/esan/esan_interceptors.cpp')
| -rw-r--r-- | lib/esan/esan_interceptors.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/esan/esan_interceptors.cpp b/lib/esan/esan_interceptors.cpp index 5d4edb51d..7aefeb664 100644 --- a/lib/esan/esan_interceptors.cpp +++ b/lib/esan/esan_interceptors.cpp @@ -17,6 +17,7 @@ #include "interception/interception.h" #include "sanitizer_common/sanitizer_common.h" #include "sanitizer_common/sanitizer_libc.h" +#include "sanitizer_common/sanitizer_linux.h" #include "sanitizer_common/sanitizer_stacktrace.h" using namespace __esan; // NOLINT @@ -397,6 +398,11 @@ INTERCEPTOR(int, sigaction, int signum, const struct sigaction *act, // This is required to properly use internal_sigaction. namespace __sanitizer { int real_sigaction(int signum, const void *act, void *oldact) { + if (REAL(sigaction) == nullptr) { + // With an instrumented allocator, this is called during interceptor init + // and we need a raw syscall solution. + return internal_sigaction_syscall(signum, act, oldact); + } return REAL(sigaction)(signum, (const struct sigaction *)act, (struct sigaction *)oldact); } |