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| author | Aleksandr Nogikh <nogikh@google.com> | 2021-12-02 10:39:37 +0000 |
|---|---|---|
| committer | Aleksandr Nogikh <wp32pw@gmail.com> | 2021-12-03 12:32:03 +0100 |
| commit | c7c20675f58e3edaa53538928c0963144fd524e5 (patch) | |
| tree | 0552f0896774be7b0d933e95432e63ff8ef13ba4 /executor/nocover.h | |
| parent | 6df0f018b545aaf2b9bbcfde8b6e530cf90da9be (diff) | |
executor: reserve fds that will belong to kcov
As now kcov instances may get set up during fuzzing, performing dup2 in
cover_open is no longer safe as it may close some important resource.
Prevent that by reserving most of fds that belong to the kcov fds range.
Unfortunately we must duplicate the code because of the way kcov
implementations are organized.
Diffstat (limited to 'executor/nocover.h')
| -rw-r--r-- | executor/nocover.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/executor/nocover.h b/executor/nocover.h index da0d0e2f7..e60d07fa9 100644 --- a/executor/nocover.h +++ b/executor/nocover.h @@ -21,6 +21,10 @@ static void cover_protect(cover_t* cov) { } +static void cover_reserve_fd(cover_t* cov) +{ +} + #if SYZ_EXECUTOR_USES_SHMEM static void cover_unprotect(cover_t* cov) { |