mirror of
https://git.tartarus.org/simon/putty.git
synced 2025-01-08 08:58:00 +00:00
65270b56f0
In a GUI app, when interactive userpass input begins, the Ldisc acquires a reference to a prompts_t. If something bad happens to the SSH connection (e.g. unexpected server-side closure), then all the SSH layers will be destroyed, including freeing that prompts_t. So the Ldisc will have a stale reference to it, which it might potentially use. To fix that, I've arranged a back-pointer so that prompts_t itself can find the Ldisc's reference to it, and NULL it out on free. So now, whichever of a prompts_t and an Ldisc is freed first, the link between them should be cleanly broken. (I'm not 100% sure this is absolutely necessary, in the sense of whether a sequence of events can _actually_ happen that causes a stale pointer dereference. But I don't want to take the chance!) |
||
|---|---|---|
| .. | ||
| base64_decode_atom.c | ||
| base64_encode_atom.c | ||
| bufchain.c | ||
| buildinfo.c | ||
| burnstr.c | ||
| chomp.c | ||
| CMakeLists.txt | ||
| conf_dest.c | ||
| conf_launchable.c | ||
| conf.c | ||
| ctrlparse.c | ||
| debug.c | ||
| dupcat.c | ||
| dupprintf.c | ||
| dupstr.c | ||
| encode_utf8.c | ||
| fgetline.c | ||
| host_strchr_internal.c | ||
| host_strchr.c | ||
| host_strcspn.c | ||
| host_strduptrim.c | ||
| host_strrchr.c | ||
| ltime.c | ||
| marshal.c | ||
| memory.c | ||
| memxor.c | ||
| miscucs.c | ||
| null_lp.c | ||
| nullseat.c | ||
| nullstrcmp.c | ||
| out_of_memory.c | ||
| parse_blocksize.c | ||
| prompts.c | ||
| ptrlen.c | ||
| read_file_into.c | ||
| seat_connection_fatal.c | ||
| sessprep.c | ||
| sk_free_peer_info.c | ||
| smemclr.c | ||
| smemeq.c | ||
| ssh2_pick_fingerprint.c | ||
| sshutils.c | ||
| strbuf.c | ||
| string_length_for_printf.c | ||
| stripctrl.c | ||
| tempseat.c | ||
| tree234.c | ||
| utils.h | ||
| validate_manual_hostkey.c | ||
| version.c | ||
| wcwidth.c | ||
| wildcard.c | ||
| write_c_string_literal.c | ||
| x11_dehexify.c | ||
| x11_identify_auth_proto.c | ||
| x11_make_greeting.c | ||
| x11_parse_ip.c | ||
| x11authfile.c | ||
| x11authnames.c | ||