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From: Adhemerval Zanella <>
Subject: [glibc/release/2.35/master] linux: Fix mq_timereceive check for 32 bit fallback code (BZ 29304)
Date: Thu, 30 Jun 2022 13:55:01 +0000 (GMT)	[thread overview]
Message-ID: <> (raw);h=cd4f43be3d60384009e9a928d82db815f77ef9b7

commit cd4f43be3d60384009e9a928d82db815f77ef9b7
Author: Adhemerval Zanella <>
Date:   Thu Jun 30 09:08:31 2022 -0300

    linux: Fix mq_timereceive check for 32 bit fallback code (BZ 29304)
    On  success,  mq_receive() and mq_timedreceive() return the number of
    bytes in the received message, so it requires to check if the value
    is larger than 0.
    Checked on i686-linux-gnu.
    (cherry picked from commit 71d87d85bf54f6522813aec97c19bdd24997341e)

 sysdeps/unix/sysv/linux/mq_timedreceive.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/mq_timedreceive.c b/sysdeps/unix/sysv/linux/mq_timedreceive.c
index 834cd7a484..5bf1e0a83b 100644
--- a/sysdeps/unix/sysv/linux/mq_timedreceive.c
+++ b/sysdeps/unix/sysv/linux/mq_timedreceive.c
@@ -41,7 +41,7 @@ ___mq_timedreceive_time64 (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len
       int r = SYSCALL_CANCEL (mq_timedreceive_time64, mqdes, msg_ptr, msg_len,
 			      msg_prio, abs_timeout);
-      if (r == 0 || errno != ENOSYS)
+      if (r >= 0 || errno != ENOSYS)
 	return r;
       __set_errno (EOVERFLOW);
       return -1;

                 reply	other threads:[~2022-06-30 13:55 UTC|newest]

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