diff options
Diffstat (limited to 'app-forensics/honggfuzz/files/honggfuzz-0.8-bts-perms.patch')
| -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) { |