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This reproduces a race where one client creates a directory and other clients see it before the directory is fully setup including the correct permissions and similar things. We have a DENY ACE for SEC_DIR_ADD_FILE, which means that files can't be created. This is set on a base directory 'mkdir_visible'. Then we have a lot of async loops trying to create a file called 'mkdir_visible\dir\file_NR'. These loop as fast as possible expecting OBJECT_PATH_NOT_FOUND, because 'mkdir_visible\dir' is not there. Then we send a create for 'mkdir_visible\dir' and expect that to work. This should turn the 'mkdir_visible\dir\file_NR' loop into getting ACCESS_DENIED, because the DENY ACE for SEC_DIR_ADD_FILE should be inherited before 'mkdir_visible\dir' is visible to other clients. Because of the complex steps in mkdir_internal(), smbd allows the creation 'mkdir_visible\dir\file_NR', as 'mkdir_visible\dir' is already visible after the mkdirat(), before the DENY ACE is inherited. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15693 Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org> |
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| .. | ||
| acls.c | ||
| attr.c | ||
| bench.c | ||
| block.c | ||
| block.h | ||
| charset.c | ||
| compound.c | ||
| connect.c | ||
| create.c | ||
| credits.c | ||
| delete-on-close.c | ||
| deny.c | ||
| dir.c | ||
| dosmode.c | ||
| durable_open.c | ||
| durable_v2_open.c | ||
| ea.c | ||
| getinfo.c | ||
| ioctl.c | ||
| lease_break_handler.c | ||
| lease_break_handler.h | ||
| lease.c | ||
| lock.c | ||
| mangle.c | ||
| max_allowed.c | ||
| maxfid.c | ||
| maxwrite.c | ||
| mkdir.c | ||
| multichannel.c | ||
| notify_disabled.c | ||
| notify.c | ||
| oplock_break_handler.c | ||
| oplock_break_handler.h | ||
| oplock.c | ||
| read_write.c | ||
| read.c | ||
| rename.c | ||
| replay.c | ||
| samba3misc.c | ||
| scan.c | ||
| secleak.c | ||
| sessid.c | ||
| session.c | ||
| setinfo.c | ||
| sharemode.c | ||
| smb2.c | ||
| streams.c | ||
| tcon.c | ||
| timestamps.c | ||
| util.c | ||
| wscript_build | ||