diff options
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/executor.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/executor/executor.cc b/executor/executor.cc index 6fbaa6218..1ac518f3f 100644 --- a/executor/executor.cc +++ b/executor/executor.cc @@ -99,6 +99,7 @@ struct thread_t { int num_args; uint64_t args[kMaxArgs]; uint64_t res; + uint64_t errno; uint32_t cover_size; int cover_fd; }; @@ -502,6 +503,7 @@ void handle_completion(thread_t* th) write_output(th->call_index); write_output(th->call_num); + write_output(th->res != -1 ? 0 : th->errno); write_output(th->cover_size); for (uint32_t i = 0; i < th->cover_size; i++) write_output(th->cover_data[i + 1]); @@ -556,6 +558,7 @@ void execute_call(thread_t* th) if (th->num_args > 6) fail("bad number of arguments"); th->res = syscall(call->sys_nr, th->args[0], th->args[1], th->args[2], th->args[3], th->args[4], th->args[5]); + th->errno = errno; break; } case __NR_syz_openpts: { @@ -569,12 +572,14 @@ void execute_call(thread_t* th) else { th->res = -1; } + th->errno = errno; } case __NR_syz_dri_open: { // syz_dri_open(card_id intptr, flags flags[open_flags]) fd[dri] char buf[128]; sprintf(buf, "/dev/dri/card%lu", th->args[0]); th->res = open(buf, th->args[1], 0); + th->errno = errno; } case __NR_syz_fuse_mount: { // syz_fuse_mount(target filename, mode flags[fuse_mode], uid uid, gid gid, maxread intptr, flags flags[mount_flags]) fd[fuse] @@ -599,6 +604,7 @@ void execute_call(thread_t* th) // Ignore errors, maybe fuzzer can do something useful with fd alone. } th->res = fd; + th->errno = errno; } case __NR_syz_fuseblk_mount: { // syz_fuseblk_mount(target filename, blkdev filename, mode flags[fuse_mode], uid uid, gid gid, maxread intptr, blksize intptr, flags flags[mount_flags]) fd[fuse] @@ -629,6 +635,7 @@ void execute_call(thread_t* th) } } th->res = fd; + th->errno = errno; } } int errno0 = errno; |