diff options
| author | Luke Dashjr <luke-jr+git@utopios.org> | 2019-03-14 13:36:24 +0000 |
|---|---|---|
| committer | Luke Dashjr <luke-jr+git@utopios.org> | 2020-03-04 19:52:16 +0000 |
| commit | d831831822885717e9841f1ff67c19add566fa45 (patch) | |
| tree | 644a0ec6acfe33d4b75daf4ec5acd67a66209f01 /src/support | |
| parent | 8a9ffec0a257da659ba54c5073bfc820986ae9c1 (diff) | |
| download | bitcoin-d831831822885717e9841f1ff67c19add566fa45.tar.xz | |
lockedpool: When possible, use madvise to avoid including sensitive information in core dumps
Diffstat (limited to 'src/support')
| -rw-r--r-- | src/support/lockedpool.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/support/lockedpool.cpp b/src/support/lockedpool.cpp index 070b3ed80e..fc1f660aec 100644 --- a/src/support/lockedpool.cpp +++ b/src/support/lockedpool.cpp @@ -250,6 +250,9 @@ void *PosixLockedPageAllocator::AllocateLocked(size_t len, bool *lockingSuccess) addr = mmap(nullptr, len, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); if (addr) { *lockingSuccess = mlock(addr, len) == 0; +#ifdef MADV_DONTDUMP + madvise(addr, len, MADV_DONTDUMP); +#endif } return addr; } |