PuTTY bug nonexistent-channel

This is a mirror. The primary PuTTY web site can be found here.

summary: `nonexistent channel -1' crashes
class: bug: This is clearly an actual problem we want fixed.
priority: high: This should be fixed in the next release.
present-in: 0.52 2002-03-14 2002-07-04 2002-09-07
fixed-in: 2002-09-16 0.53 (0.54) (0.55) (0.56) (0.57) (0.58) (0.59) (0.60)

We're getting occasional reports of PuTTY sessions dying with messages like "Server sent disconnect message: received data for nonexistent channel -1". Reports so far:

OpenSSH-1.2.3 on Debian potato, 0.52 on W2K, port forwarding "mapping port 993 to 3993" (don't know which way)
"Server sent disconnect message: received data for nonexistent channel -1"
"SSH-1.99-OpenSSH_2.9.9p2", 2002-03-14 on XP Pro
"Server sent disconnect message. Received ieof for nonexistent channel -1"

Update: We believed this fixed as of 2002 May 18 (and have had one person report that our fix made their problem go away), but we've received reports that the `ieof' variant at least is still out there (in 2002-07-04 and 2002-09-07).

OAEBLEDJOCNMIAODAMHBOEHIFDAA.ewang@collectivebid.com
015601c2567e$edff1320$ef00000a@rop (with SSH packet dump)

Update 2002-09-15: We believe the last bug of this kind has been squashed as of 2002-09-16; no-one's confirmed this, but no-one's complained either. We've also put code in which will hopefully make catching any remaining problems easier.

Audit trail for this bug.

If you want to comment on this web site, see the Feedback page.
(last revision of this bug record was at 2004-11-16 15:27:00 +0000)