From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <49BFED6E.4090009@domain.hid> Date: Tue, 17 Mar 2009 19:35:26 +0100 From: Jan Kiszka MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: [Xenomai-core] [PATCH] posix: Fix error checks when copying user strings List-Id: "Xenomai life and development \(bug reports, patches, discussions\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai-core Obviously a conversion error while switching to __xn_safe*. Signed-off-by: Jan Kiszka --- ksrc/skins/posix/syscall.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/ksrc/skins/posix/syscall.c b/ksrc/skins/posix/syscall.c index 16303b3..0eca3d0 100644 --- a/ksrc/skins/posix/syscall.c +++ b/ksrc/skins/posix/syscall.c @@ -1663,7 +1663,7 @@ static int __mq_open(struct pt_regs *regs) len = __xn_safe_strncpy_from_user(name, (const char __user *)__xn_reg_arg1(regs), sizeof(name)); - if (len <= 0) + if (len < 0) return -EFAULT; if (len >= sizeof(name)) @@ -1736,7 +1736,7 @@ static int __mq_unlink(struct pt_regs *regs) len = __xn_safe_strncpy_from_user(name, (const char __user *)__xn_reg_arg1(regs), sizeof(name)); - if (len <= 0) + if (len < 0) return -EFAULT; if (len >= sizeof(name)) @@ -2440,7 +2440,7 @@ static int __shm_open(struct pt_regs *regs) len = __xn_safe_strncpy_from_user(name, (const char __user *)__xn_reg_arg1(regs), sizeof(name)); - if (len <= 0) + if (len < 0) return -EFAULT; if (len >= sizeof(name)) @@ -2487,7 +2487,7 @@ static int __shm_unlink(struct pt_regs *regs) len = __xn_safe_strncpy_from_user(name, (const char __user *)__xn_reg_arg1(regs), sizeof(name)); - if (len <= 0) + if (len < 0) return -EFAULT; if (len >= sizeof(name))