diff options
| -rw-r--r-- | changes/ticket40286_minimal | 5 | ||||
| -rw-r--r-- | src/feature/dirparse/unparseable.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/changes/ticket40286_minimal b/changes/ticket40286_minimal new file mode 100644 index 0000000000..b8669debaa --- /dev/null +++ b/changes/ticket40286_minimal @@ -0,0 +1,5 @@ + o Major bugfixes (denial of service): + - Disable the dump_desc() function that we used to dump unparseable + information to disk. It was called incorrectly in several places, + in a way that could lead to excessive CPU usage. + Fixes bug 40286; bugfix on 0.2.2.1-alpha. diff --git a/src/feature/dirparse/unparseable.c b/src/feature/dirparse/unparseable.c index 941b5a1f6d..a547335452 100644 --- a/src/feature/dirparse/unparseable.c +++ b/src/feature/dirparse/unparseable.c @@ -492,6 +492,12 @@ dump_desc,(const char *desc, const char *type)) { tor_assert(desc); tor_assert(type); +#ifndef TOR_UNIT_TESTS + /* On older versions of Tor we are disabling this function, since it + * can be called with strings that are far too long. */ + if (1) + return; +#endif size_t len; /* The SHA256 of the string */ uint8_t digest_sha256[DIGEST256_LEN]; |