Displaying 1 result from an estimated 1 matches for "syslog_lock".
2024 May 12
5
[Bug 3690] New: sshd: root [priv] process sleeping leads to unprivileged child proc zombie
...invoked. Similarly, within the
main thread, the `privsep_preauth()` function calls
`monitor_child_preauth()`, which then calls `auth_log()`, and this also
results in calls to `{openlog(), syslog(), closelog()}`.
Since these functions are not async-signal-safe and they utilize a
global lock named `syslog_lock`, this can lead to a recursive deadlock
(AA lock). As a result, the pre-authentication process may end up in a
zombie state and fail to exit.
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