[Bug 3232] New: The new select syscall needed for ARM architecture

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=3232

            Bug ID: 3232
           Summary: The new select syscall needed for ARM architecture
           Product: Portable OpenSSH
           Version: 8.4p1
          Hardware: ARM64
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: jjelen at redhat.com

Created attachment 3454
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3454&action=edit
proposed patch

I got a new report that with a new kernel on armhfp (armv7hl), sshd
fails in the sandbox. Later debugging uncovered the syscall number,
which is missing:

type=SECCOMP msg=audit(1605645779.332:638): auid=4294967295 uid=74
gid=74 ses=4294967295 subj=system_u:system_r:sshd_net_t:s0-s0:c0.c1023
pid=796 comm="sshd" exe="/usr/sbin/sshd" sig=31 arch=40000028
syscall=413 compat=0 ip=0xb68db370 code=0x0AUID="unset" UID="sshd"
GID="sshd" ARCH=armeb SYSCALL=unknown-syscall(413)

On arm 413 looks to be pselect6_time64

I tried the attached patch and it solved the issue. For more
information, see the Fedora bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1897712

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