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Crash in safefree/ssh_channel_destroy when running ssh-add --invalid in 3f115c6 #123

ghost opened this issue Dec 21, 2013 · 1 comment


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ghost commented Dec 21, 2013

I have a reproducible crash when:

  • Running putty.exe from 3f115c6
  • Pageant has a key loaded into memory
  • ssh agent forwarding is enabled
  • I run ssh-add --somethinginvalid (any invalid parameter will do)

I have a minidump of the crash but I am unsure if it will contain my keys - please advise.

FauxFaux pushed a commit that referenced this issue Dec 22, 2013
CHAN_AGENT channels need c->u.a.message to be either NULL or valid
dynamically allocated memory, because it'll be freed by
ssh_channel_destroy. This bug triggers if an agent forwarding channel
is opened and closed without having sent any queries.

git-svn-id: svn:// cda61777-01e9-0310-a592-d414129be87e
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Fixed upstream by 98b9e75; cherry-picked into master.

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