diff options
| author | Werner Koch <[email protected]> | 2016-06-14 06:35:12 +0000 |
|---|---|---|
| committer | Werner Koch <[email protected]> | 2016-06-14 06:38:34 +0000 |
| commit | 8173c4f1f8a145c4b1d454f6f05e26950e23d675 (patch) | |
| tree | b1bf86473dcdba6f31bc3993d9ccd75d932895d9 /src/posix-io.c | |
| parent | python: Improve error handling. (diff) | |
| download | gpgme-8173c4f1f8a145c4b1d454f6f05e26950e23d675.tar.gz gpgme-8173c4f1f8a145c4b1d454f6f05e26950e23d675.zip | |
core: Make sure FD_SET is not used with an out of range fd.
* src/posix-io.c (_gpgme_io_select): Check for FD out of range.
--
Signed-off-by: Werner Koch <[email protected]>
Diffstat (limited to '')
| -rw-r--r-- | src/posix-io.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/posix-io.c b/src/posix-io.c index f3361534..258e8ea5 100644 --- a/src/posix-io.c +++ b/src/posix-io.c @@ -604,6 +604,12 @@ _gpgme_io_select (struct io_select_fd_s *fds, size_t nfds, int nonblock) continue; if (fds[i].for_read) { + if (fds[i].fd >= FD_SETSIZE) + { + TRACE_END (dbg_help, " -BAD- ]"); + gpg_err_set_errno (EBADF); + return TRACE_SYSRES (-1); + } assert (!FD_ISSET (fds[i].fd, &readfds)); FD_SET (fds[i].fd, &readfds); if (fds[i].fd > max_fd) @@ -613,6 +619,12 @@ _gpgme_io_select (struct io_select_fd_s *fds, size_t nfds, int nonblock) } else if (fds[i].for_write) { + if (fds[i].fd >= FD_SETSIZE) + { + TRACE_END (dbg_help, " -BAD- ]"); + gpg_err_set_errno (EBADF); + return TRACE_SYSRES (-1); + } assert (!FD_ISSET (fds[i].fd, &writefds)); FD_SET (fds[i].fd, &writefds); if (fds[i].fd > max_fd) |