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Fix mq_timereceive check for 32bit fallback code (BZ 29304)

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liqingqing_1229 2022-07-01 14:56:43 +08:00
parent b9e6d35bc5
commit f7943522cd
2 changed files with 36 additions and 1 deletions
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6
glibc.spec
View File

@ -66,7 +66,7 @@
##############################################################################
Name: glibc
Version: 2.34
Release: 88
Release: 89
Summary: The GNU libc libraries
License: %{all_license}
URL: http://www.gnu.org/software/glibc/
@ -224,6 +224,7 @@ Patch136: backport-elf-Fix-use-after-free-in-ldconfig-BZ-26779.patch
Patch137: realpath-Avoid-overwriting-preexisting-error-CVE-2021-3998.patch
Patch138: Linux-Avoid-closing-1-on-failure-in-__closefrom_fall.patch
Patch139: Fix-deadlock-when-pthread_atfork-handler-calls-pthre.patch
Patch140: linux-Fix-mq_timereceive-check-for-32-bit-fallback-c.patch
Patch9000: turn-default-value-of-x86_rep_stosb_threshold_form_2K_to_1M.patch
Patch9001: delete-no-hard-link-to-avoid-all_language-package-to.patch
@ -1399,6 +1400,9 @@ fi
%endif
%changelog
* Fri Jul 1 2022 Qingqing Li <liqingqing3@huawei.com> - 2.34-89
- Fix mq_timereceive check for 32 bit fallback code (BZ 29304)
* Tue Jun 28 2022 Qingqing Li <liqingqing3@huawei.com> - 2.34-88
- aarch64: add -mno-outline-atomics to prevent mallocT2_xx performance regression

31
linux-Fix-mq_timereceive-check-for-32-bit-fallback-c.patch Normal file
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@ -0,0 +1,31 @@
From 71d87d85bf54f6522813aec97c19bdd24997341e Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Thu, 30 Jun 2022 09:08:31 -0300
Subject: [PATCH] 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.
---
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 834cd7a..5bf1e0a 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;
--
1.8.3.1