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runsc/boot/filter: permit SYS_TIME for race

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glibc's malloc also uses SYS_TIME. Permit it.

#0  0x0000000000de6267 in time ()
#1  0x0000000000db19d8 in get_nprocs ()
#2  0x0000000000d8a31a in arena_get2.part ()
#3  0x0000000000d8ab4a in malloc ()
#4  0x0000000000d3c6b5 in __sanitizer::InternalAlloc(unsigned long, __sanitizer::SizeClassAllocatorLocalCache<__sanitizer::SizeClassAllocator32<0ul, 140737488355328ull, 0ul, __sanitizer::SizeClassMap<3ul, 4ul, 8ul, 17ul, 64ul, 14ul>, 20ul, __sanitizer::TwoLevelByteMap<32768ull, 4096ull, __sanitizer::NoOpMapUnmapCallback>, __sanitizer::NoOpMapUnmapCallback> >*, unsigned long) ()
#5  0x0000000000d4cd70 in __tsan_go_start ()
#6  0x00000000004617a3 in racecall ()
#7  0x00000000010f4ea0 in runtime.findfunctab ()
#8  0x000000000043f193 in runtime.racegostart ()

Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
[mpratt@google.com: updated comments and commit message]
Signed-off-by: Michael Pratt <mpratt@google.com>

Change-Id: Ibe2d0dc3035bf5052d5fb802cfaa37c5e0e7a09a
PiperOrigin-RevId: 203042627
This commit is contained in:
Dmitry Vyukov
2018-07-02 17:47:32 -07:00
committed by Shentubot
parent 2821dfe6ce
commit 6144751962
1 changed files with 2 additions and 0 deletions
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runsc/boot/filter/extra_filters_race.go
+2
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@@ -34,5 +34,7 @@ func instrumentationFilters() seccomp.SyscallRules {
syscall.SYS_NANOSLEEP: {},
syscall.SYS_OPEN: {},
syscall.SYS_SET_ROBUST_LIST: {},
// Used within glibc's malloc.
syscall.SYS_TIME: {},
}
}