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| author |   Sergei Trofimovich <slyfox@gentoo.org> | 2016-11-11 23:02:48 +0000 |
|---|---|---|
| committer | Sergei Trofimovich <slyfox@gentoo.org> | 2016-11-11 23:03:20 +0000 |
| commit | 46ee4b72fa83b9652bf4ac5a92914f7a558b4cab (patch) | |
| tree | 103b70226e7c3622f244eb2965631f0d30ff89ea /app-forensics/honggfuzz/files | |
| parent | sys-devel/binutils-config: update man page to cover --linker #594034 (diff) | |
| download | gentoo-46ee4b72fa83b9652bf4ac5a92914f7a558b4cab.tar.gz gentoo-46ee4b72fa83b9652bf4ac5a92914f7a558b4cab.tar.bz2 gentoo-46ee4b72fa83b9652bf4ac5a92914f7a558b4cab.zip | |
app-forensics/honggfuzz: unbreak --linux_perf_bts_block flag
Workaround --linux_perf_bts_block flag breakage.
Mateusz reports that running honggfuzz fails as:
[2016-11-11T21:54:27+0000][W][1190] arch_perfOpen():223 mmap(mmapAuxBuf) failed,
try increasing the kernel.perf_event_mlock_kb sysctl (up to even 300000000): Cannot allocate memory
It seems aux data also needs WRITE permissions.
Reported-by: Mateusz Lenik
Package-Manager: portage-2.3.2
Diffstat (limited to 'app-forensics/honggfuzz/files')
| -rw-r--r-- | app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch b/app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch new file mode 100644 index 000000000000..e8ac4919e208 --- /dev/null +++ b/app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch @@ -0,0 +1,19 @@ +Workaround --linux_perf_bts_block flag breakage. + +Mateusz reports that running honggfuzz fails as: + [2016-11-11T21:54:27+0000][W][1190] arch_perfOpen():223 mmap(mmapAuxBuf) failed, + try increasing the kernel.perf_event_mlock_kb sysctl (up to even 300000000): Cannot allocate memory + +It seems aux data also needs WRITE permissions. + +Reported-by: Mateusz Lenik +diff --git a/linux/perf.c b/linux/perf.c +index d8ede5f..2f71b3d 100644 +--- a/linux/perf.c ++++ b/linux/perf.c +@@ -217,3 +217,4 @@ static bool arch_perfOpen(honggfuzz_t * hfuzz, fuzzer_t * fuzzer UNUSED, pid_t p + fuzzer->linux.perfMmapAux = +- mmap(NULL, pem->aux_size, PROT_READ, MAP_SHARED, *perfFd, pem->aux_offset); ++ mmap(NULL, pem->aux_size, PROT_READ | PROT_WRITE, MAP_SHARED, *perfFd, pem->aux_offset); ++ + if (fuzzer->linux.perfMmapAux == MAP_FAILED) { |