Messages in this thread | | | From | Andy Lutomirski <> | Date | Tue, 30 Jul 2019 13:09:20 -0700 | Subject | Re: [patch V2 3/5] lib/vdso/32: Provide legacy syscall fallbacks |
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On Tue, Jul 30, 2019 at 2:39 AM Thomas Gleixner <tglx@linutronix.de> wrote: > > 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. >
I haven't surveyed all the architectures, but once everything is converted, shouldn't we use the 32-bit fallback for exactly the same set of architectures that want clock_gettime32 at all in the vdso?
--Andy
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