diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2024-03-08 16:18:54 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2024-03-08 16:18:54 +0000 |
| commit | b44a8023f1e436455f11e7abdf9f592e5665f1a6 (patch) | |
| tree | da70e93e658fe3a92d2c88dfab6adcb9ce60dbf3 /sys/arch/m88k | |
| parent | b0c7683bc4710577c0b806489efb89ebcc9ee077 (diff) | |
Make sure copyoutstr() invoked with a length of zero returns ENAMETOOLONG.
This bug has been present in that file since the very beginning, more than
28 years ago.
Diffstat (limited to 'sys/arch/m88k')
| -rw-r--r-- | sys/arch/m88k/m88k/subr.S | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/arch/m88k/m88k/subr.S b/sys/arch/m88k/m88k/subr.S index ff73eec1553..b930841170e 100644 --- a/sys/arch/m88k/m88k/subr.S +++ b/sys/arch/m88k/m88k/subr.S @@ -1,4 +1,4 @@ -/* $OpenBSD: subr.S,v 1.31 2023/12/12 07:37:21 deraadt Exp $ */ +/* $OpenBSD: subr.S,v 1.32 2024/03/08 16:18:53 miod Exp $ */ /* * Mach Operating System * Copyright (c) 1993-1992 Carnegie Mellon University @@ -714,7 +714,7 @@ ENTRY(copyoutstr) or %r6, %r6, %lo16(Lcosflt) st %r6, %r7, PCB_ONFAULT bcnd lt0, CNT, Lcosflt - bcnd eq0, CNT, Lcosdone + bcnd eq0, CNT, 2f or %r6, %r0, 0 1: ld.bu %r7, SRC, %r6 @@ -727,13 +727,14 @@ ENTRY(copyoutstr) #else st.b.usr %r7, DEST, %r6 #endif - bcnd.n eq0, %r7, 2f /* all done */ + bcnd.n eq0, %r7, 3f /* all done */ addu %r6, %r6, 1 cmp %r7, %r6, CNT bb1 lt, %r7, 1b +2: br.n Lcosdone or %r2, %r0, ENAMETOOLONG -2: +3: br.n Lcosdone or %r2, %r0, 0 |