https://bugzilla.mindrot.org/show_bug.cgi?id=3531
Bug ID: 3531
Summary: Ssh will not exit when it receives SIGTERM before
calling poll in client_wait_until_can_do_something
until some events happen.
Product: Portable OpenSSH
Version: 9.1p1
Hardware: Other
OS: Linux
Status: NEW
Severity: enhancement
Priority: P5
Component: ssh
Assignee: [email protected]
Reporter: [email protected]
In general, ssh will call poll in client_wait_until_can_do_something to
wait for poll events with setting timeout to -1. When ssh receives
SIGTERM before poll, it will not exit as expected until some events
happen or receiving new signals.
client_loop
client_wait_until_can_do_something
<--------- SIGTERM
-> signal_handler()
poll() // wait for events and never exit as expected
In my opinion, when SIGTERM is received, ssh should not continue to
call the poll(), or call poll() with setting timeout to -1.
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