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linux-next/lib/vdso
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Thomas Gleixner c60a32ea4f lib/vdso/32: Provide legacy syscall fallbacks 
To address the regression which causes seccomp to deny applications the
access to clock_gettime64() and clock_getres64() syscalls because they
are not enabled in the existing filters.

That trips over the fact that 32bit VDSOs use the new clock_gettime64() and
clock_getres64() syscalls in the fallback path.

Add a conditional to invoke the 32bit legacy fallback syscalls instead of
the new 64bit variants. The conditional can go away once all architectures
are converted.

Fixes: 00b26474c2 ("lib/vdso: Provide generic VDSO implementation")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1907301134470.1738@nanos.tec.linutronix.de
2019-07-31 00:09:09 +02:00
..
gettimeofday.c lib/vdso/32: Provide legacy syscall fallbacks 2019-07-31 00:09:09 +02:00
Kconfig lib/vdso: Provide generic VDSO implementation 2019-06-22 21:21:05 +02:00
Makefile lib/vdso: Provide generic VDSO implementation 2019-06-22 21:21:05 +02:00