[Bug 3512] New: net-misc/openssh-9.1_p1: stopped accepting connections after upgrade to sys-libs/glibc-2.36 (fatal: ssh_sandbox_violation: unexpected system call)

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=3512

            Bug ID: 3512
           Summary: net-misc/openssh-9.1_p1: stopped accepting connections
                    after upgrade to sys-libs/glibc-2.36 (fatal:
                    ssh_sandbox_violation: unexpected system call)
           Product: Portable OpenSSH
           Version: 9.1p1
          Hardware: amd64
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: jussi.koponen at iki.fi

After updating to sys-libs/glibc-2.36-r5 sshd stopped accepting
connections:

debug3: fd 6 is not O_NONBLOCK
debug1: Forked child 5799.
debug3: send_rexec_state: entering fd = 9 config len 3506
debug3: ssh_msg_send: type 0
debug3: send_rexec_state: done
debug3: oom_adjust_restore
debug1: Set /proc/self/oom_score_adj to 0
debug1: rexec start in 6 out 6 newsock 6 pipe 8 sock 9
debug1: inetd sockets after dupping: 4, 4
debug1: Local version string SSH-2.0-OpenSSH_9.1
debug1: Remote protocol version 2.0, remote software version
OpenSSH_8.6
debug1: compat_banner: match: OpenSSH_8.6 pat OpenSSH* compat
0x04000000
debug2: fd 4 setting O_NONBLOCK
debug3: ssh_sandbox_init: preparing seccomp filter sandbox
debug2: Network child is on pid 5800
debug3: preauth child monitor started
debug3: privsep user:group 22:22 [preauth]
debug1: permanently_set_uid: 22/22 [preauth]
debug3: ssh_sandbox_child_debugging: installing SIGSYS handler
[preauth]
debug3: ssh_sandbox_child: setting PR_SET_NO_NEW_PRIVS [preauth]
debug3: ssh_sandbox_child: attaching seccomp filter program [preauth]
debug3: append_hostkey_type: ssh-rsa key not permitted by
HostkeyAlgorithms [preauth]
debug1: list_hostkey_types:
rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 [preauth]
fatal: ssh_sandbox_violation: unexpected system call
(arch:0xc000003e,syscall:20 @ 0x7fa1f0041638) [preauth]
debug3: mm_request_receive: entering
debug1: do_cleanup
debug3: PAM: sshpam_thread_cleanup entering
debug1: Killing privsep child 5800

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