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!55 update sftable memory size before using pipe fd as index of fdstatus

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From: @Linux_zhang2024 
Reviewed-by: @jiayi0118 
Signed-off-by: @jiayi0118
This commit is contained in:
openeuler-ci-bot 2025-04-01 01:36:33 +00:00 committed by Gitee
commit 7c24f2c8fe
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2 changed files with 44 additions and 1 deletions
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6
ksh.spec
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@ -1,6 +1,6 @@
Name: ksh
Version: 2020.0.0
Release: 8
Release: 9
Summary: The Original ATT Korn Shell
License: EPL-1.0
URL: http://www.kornshell.com/
@ -18,6 +18,7 @@ Patch6003: backport-Fix-handling-of-skipped-directories.patch
Patch6004: backport-Fix-interactive-restricted-shell-behavior.patch
Patch9000: solve-the-problem-of-dereference-null-return-value-w.patch
Patch9001: update-sftable-memory-size-before-using-p.patch
Provides: /bin/ksh /usr/bin/ksh
BuildRequires: meson gcc glibc-devel ed
@ -91,6 +92,9 @@ done
%config(noreplace) %{_sysconfdir}/binfmt.d/kshcomp.conf
%changelog
* Tue Apr 01 2025 Linux_zhang <zhangruifang@h-partners.com> - 1:2020.0.0-9
- update sftable memory size before using pipe fd as index of fdstatus
* Tue May 7 2024 wangyuhang <wangyuhang27@huawei.com> - 1:2020.0.0-8
- solve the problem of dereference null return value when moving a job to the head of the linked list

39
update-sftable-memory-size-before-using-p.patch Normal file
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@ -0,0 +1,39 @@
From f9e4914c562edea76ee12c1d0bffba19cfee3994 Mon Sep 17 00:00:00 2001
From: chenjiayi <chenjiayi22@huawei.com>
Date: Sun, 16 Mar 2025 16:10:17 +0800
Subject: [PATCH 1/1] ksh: update sftable memory size before using pipe fd as index of fdstatus
---
src/cmd/ksh93/sh/io.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/cmd/ksh93/sh/io.c b/src/cmd/ksh93/sh/io.c
index 4cbfa75..3b897ef 100644
--- a/src/cmd/ksh93/sh/io.c
+++ b/src/cmd/ksh93/sh/io.c
@@ -746,14 +746,20 @@ void sh_rpipe(int pv[]) {
errormsg(SH_DICT, ERROR_system(1), e_pipe);
__builtin_unreachable();
}
- shp->fdstatus[pv[0]] = IONOSEEK | IOREAD | IOCLEX;
- shp->fdstatus[pv[1]] = IONOSEEK | IOWRITE | IOCLEX;
+
#if !_lib_pipe2
if (pv[0] > 2) (void)fcntl(pv[0], F_SETFD, FD_CLOEXEC);
if (pv[1] > 2) (void)fcntl(pv[1], F_SETFD, FD_CLOEXEC);
#endif
if (pv[0] <= 2) pv[0] = sh_iomovefd(shp, pv[0]);
if (pv[1] <= 2) pv[1] = sh_iomovefd(shp, pv[1]);
+
+ if (!sh_iovalidfd(shp, pv[0])) abort();
+ if (!sh_iovalidfd(shp, pv[1])) abort();
+
+ shp->fdstatus[pv[0]] = IONOSEEK | IOREAD | IOCLEX;
+ shp->fdstatus[pv[1]] = IONOSEEK | IOWRITE | IOCLEX;
+
sh_subsavefd(pv[0]);
sh_subsavefd(pv[1]);
}
--
2.33.0