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| author | Daniel Stenberg <daniel@haxx.se> | 2021-03-21 00:10:04 +0100 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2021-03-21 11:22:08 +0100 |
| commit | 012c19c33a57bd821aa433b488deaf7f30e7bb44 (patch) | |
| tree | fe10122199ebb22cb3d138532ff2409631eab3ad | |
| parent | 2e444a17d4ae3976ea69865dd2a63ba0fb40267f (diff) | |
| download | curl-012c19c33a57bd821aa433b488deaf7f30e7bb44.tar.gz | |
libssh2:ssh_connect: clear session pointer after free
If libssh2_knownhost_init() returns NULL, like in an OOM situation, the
ssh session was freed but the pointer wasn't cleared which made libcurl
later call libssh2 to cleanup using the stale pointer.
Fixes #6764
Closes #6766
| -rw-r--r-- | lib/vssh/libssh2.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/vssh/libssh2.c b/lib/vssh/libssh2.c index 0e7c2eb98..891e945f7 100644 --- a/lib/vssh/libssh2.c +++ b/lib/vssh/libssh2.c @@ -3159,6 +3159,7 @@ static CURLcode ssh_connect(struct Curl_easy *data, bool *done) sshc->kh = libssh2_knownhost_init(sshc->ssh_session); if(!sshc->kh) { libssh2_session_free(sshc->ssh_session); + sshc->ssh_session = NULL; return CURLE_FAILED_INIT; } |