diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2020-10-21 15:50:01 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2020-10-21 15:50:01 +0000 |
| commit | c91d4c3a1a3c2245a7a178cfa77d050dffe91ace (patch) | |
| tree | 64b83dde2b680559f976a92b75ea45040013cce4 /sys/arch/mips64 | |
| parent | 7429eb090fc34350cc22500a6d9605c96f6f577e (diff) | |
mips64 has same bug as arm64: copyout(9), copyinstr(9) and
copyoutstr(9) should bail out properly if they are called with
a length of 0.
ok visa
Diffstat (limited to 'sys/arch/mips64')
| -rw-r--r-- | sys/arch/mips64/mips64/lcore_access.S | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/arch/mips64/mips64/lcore_access.S b/sys/arch/mips64/mips64/lcore_access.S index 7719053fbc2..c8f941e2d8d 100644 --- a/sys/arch/mips64/mips64/lcore_access.S +++ b/sys/arch/mips64/mips64/lcore_access.S @@ -1,4 +1,4 @@ -/* $OpenBSD: lcore_access.S,v 1.29 2020/10/20 15:26:59 visa Exp $ */ +/* $OpenBSD: lcore_access.S,v 1.30 2020/10/21 15:50:00 deraadt Exp $ */ /* * Copyright (c) 2001-2003 Opsycon AB (www.opsycon.se / www.opsycon.com) @@ -106,7 +106,8 @@ sigfillsiz: * u_long *lencopied; */ LEAF(copystr, 0) - move t2, a2 # Save the number of bytes + beq a2, zero, 9f + move t2, a2 # Save the number of bytes move v0, zero 1: lbu t0, 0(a0) @@ -117,6 +118,7 @@ LEAF(copystr, 0) PTR_ADDU a1, a1, 1 bne a2, zero, 1b NOP +9: LI v0, ENAMETOOLONG # String is longer than maxlength 2: beq a3, zero, 3f |