From 0482d7c9e944433abc98fc27a265ae762abce9a0 Mon Sep 17 00:00:00 2001 From: Alex Richardson Date: Mon, 15 Feb 2021 22:09:33 +0000 Subject: Fix fget_only_user() to return ENOTCAPABLE on a failed capsicum check After eaad8d1303da500ed691bd774742a4555a05e729 four additional capsicum-test tests started failing. It turns out this is because fget_only_user() was returning EBADF on a failed capsicum check instead of forwarding the return value of cap_check_inline() like fget_unlocked_seq(). capsicum-test failures before this: ``` [ FAILED ] 7 tests, listed below: [ FAILED ] Capability.OperationsForked [ FAILED ] Capability.NoBypassDAC [ FAILED ] Pdfork.OtherUserForked [ FAILED ] PipePdfork.WildcardWait [ FAILED ] OpenatTest.WithFlag [ FAILED ] ForkedOpenatTest_WithFlagInCapabilityMode._ [ FAILED ] Select.LotsOFileDescriptorsForked ``` After: ``` [ FAILED ] 3 tests, listed below: [ FAILED ] Capability.NoBypassDAC [ FAILED ] Pdfork.OtherUserForked [ FAILED ] PipePdfork.WildcardWait ``` Reviewed By: mjg MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D28691 --- sys/kern/kern_descrip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 059e5123c7b5..43cedfe2199b 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -3214,7 +3214,7 @@ fget_only_user(struct filedesc *fdp, int fd, cap_rights_t *needrightsp, haverights = cap_rights_fde_inline(fde); error = cap_check_inline(haverights, needrightsp); if (__predict_false(error != 0)) - return (EBADF); + return (error); *fpp = fp; return (0); } -- cgit v1.2.3