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Cygwin: fork: fix child process permissions, take 2

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VirtualQueryEx, called by fixup_mmaps_after_fork, requires
PROCESS_QUERY_INFORMATION permissions per MSDN.  However, testing
shows that PROCESS_QUERY_LIMITED_INFORMATION is sufficient when
running the same code on Windows 8.1 or Windows 10.  Fix the code
to give the forked child always PROCESS_QUERY_INFORMATION perms
on Windows Vista/7 and respective server releases.

Revert now unneeded patch to check_token_membership as well.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2019-01-30 12:18:03 +01:00
parent a52396bd07
commit ef8ce3077f
3 changed files with 8 additions and 17 deletions
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winsup/cygwin/security.h
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@ -17,7 +17,6 @@ details. */
/* UID/GID */
void uinfo_init ();
bool check_token_membership (HANDLE, PSID);
bool check_token_membership (PSID);
#define ILLEGAL_UID ((uid_t)-1)