diff options
| author | Theo Buehler <tb@cvs.openbsd.org> | 2023-08-14 08:07:28 +0000 |
|---|---|---|
| committer | Theo Buehler <tb@cvs.openbsd.org> | 2023-08-14 08:07:28 +0000 |
| commit | 1f8a257c22a2b0011e2ab0767fa1d7f9a6f3ad6d (patch) | |
| tree | 80f1bc75232d6abb64a230f53929aa73a31d8161 /usr.bin/cpp | |
| parent | f11fd629ca75013925acad498fcc8574eee31bf5 (diff) | |
netcat: avoid issuing syscalls on fd -1
In case a socket error condition occurs, readwrite() invalidates the
corresponding fd. Later on, readwrite() may still issue a syscall on
it. Avoid that by adding a couple of checks for fd == -1.
Reported and fix suggested by Leah Neukirchen.
Fixes https://github.com/libressl/openbsd/issues/143
"looks right" deraadt
Diffstat (limited to 'usr.bin/cpp')
0 files changed, 0 insertions, 0 deletions