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c39ed518f0
Currently if the specifier can't be parsed - error message is printed
and parsing of the format string continues. That's wrong as the argument
for the specifier will be used for the next specifier. I.e:
pr_info("[%zu]`%s`\n", 0UL, "")
will crash PIE because %u is not known and the argument (0UL) will be
used for dereferencing string for %s.
Stop parsing printf position arguments at an unknown specifier.
Make this string visible so that `grep Error` in zdtm.py will catch it:
=[log]=> dump/zdtm/static/busyloop00/52/1/restore.log
------------------------ grep Error ------------------------
b'(00.001847) pie: 52: vdso: ['
b'Error: Unknown printf format %u'
------------------------ ERROR OVER ------------------------
Send the 15 signal to 52
Wait for zdtm/static/busyloop00(52) to die for 0.100000
======================= Test zdtm/static/busyloop00 PASS =======================
Reported-by: @ashwani29
Signed-off-by: Dmitry Safonov <dima@arista.com>
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