From: <mingli.yu@windriver.com>
To: <openembedded-core@lists.openembedded.org>
Subject: [PATCH] zlib: Fix CVE-2026-22184
Date: Mon, 19 Jan 2026 16:16:35 +0800 [thread overview]
Message-ID: <20260119081635.3976267-1-mingli.yu@windriver.com> (raw)
From: Mingli Yu <mingli.yu@windriver.com>
Backport a patch [1] to fix CVE-2026-22184.
[1] https://github.com/madler/zlib/commit/1a40058a92d525aa49a6eac698cfde500fc9b92f
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
---
.../zlib/zlib/CVE-2026-22184.patch | 753 ++++++++++++++++++
meta/recipes-core/zlib/zlib_1.3.1.bb | 1 +
2 files changed, 754 insertions(+)
create mode 100644 meta/recipes-core/zlib/zlib/CVE-2026-22184.patch
diff --git a/meta/recipes-core/zlib/zlib/CVE-2026-22184.patch b/meta/recipes-core/zlib/zlib/CVE-2026-22184.patch
new file mode 100644
index 0000000000..130195d1ff
--- /dev/null
+++ b/meta/recipes-core/zlib/zlib/CVE-2026-22184.patch
@@ -0,0 +1,753 @@
+From 1a40058a92d525aa49a6eac698cfde500fc9b92f Mon Sep 17 00:00:00 2001
+From: Mark Adler <git@madler.net>
+Date: Sun, 11 Jan 2026 13:00:25 -0800
+Subject: [PATCH] Remove untgz from contrib.
+
+CVE: CVE-2026-22184
+
+Upstream-Status: Backport [https://github.com/madler/zlib/commit/1a40058a92d525aa49a6eac698cfde500fc9b92f]
+
+Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
+---
+ contrib/README.contrib | 3 -
+ contrib/untgz/Makefile | 14 -
+ contrib/untgz/Makefile.msc | 17 -
+ contrib/untgz/untgz.c | 667 -------------------------------------
+ 4 files changed, 701 deletions(-)
+ delete mode 100644 contrib/untgz/Makefile
+ delete mode 100644 contrib/untgz/Makefile.msc
+ delete mode 100644 contrib/untgz/untgz.c
+
+diff --git a/contrib/README.contrib b/contrib/README.contrib
+index 5e5f950..d9480ee 100644
+--- a/contrib/README.contrib
++++ b/contrib/README.contrib
+@@ -49,9 +49,6 @@ puff/ by Mark Adler <madler@alumni.caltech.edu>
+ testzlib/ by Gilles Vollant <info@winimage.com>
+ Example of the use of zlib
+
+-untgz/ by Pedro A. Aranda Gutierrez <paag@tid.es>
+- A very simple tar.gz file extractor using zlib
+-
+ vstudio/ by Gilles Vollant <info@winimage.com>
+ Building a minizip-enhanced zlib with Microsoft Visual Studio
+ Includes vc11 from kreuzerkrieg and vc12 from davispuh
+diff --git a/contrib/untgz/Makefile b/contrib/untgz/Makefile
+deleted file mode 100644
+index b54266f..0000000
+--- a/contrib/untgz/Makefile
++++ /dev/null
+@@ -1,14 +0,0 @@
+-CC=cc
+-CFLAGS=-g
+-
+-untgz: untgz.o ../../libz.a
+- $(CC) $(CFLAGS) -o untgz untgz.o -L../.. -lz
+-
+-untgz.o: untgz.c ../../zlib.h
+- $(CC) $(CFLAGS) -c -I../.. untgz.c
+-
+-../../libz.a:
+- cd ../..; ./configure; make
+-
+-clean:
+- rm -f untgz untgz.o *~
+diff --git a/contrib/untgz/Makefile.msc b/contrib/untgz/Makefile.msc
+deleted file mode 100644
+index 77b8602..0000000
+--- a/contrib/untgz/Makefile.msc
++++ /dev/null
+@@ -1,17 +0,0 @@
+-CC=cl
+-CFLAGS=-MD
+-
+-untgz.exe: untgz.obj ..\..\zlib.lib
+- $(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib
+-
+-untgz.obj: untgz.c ..\..\zlib.h
+- $(CC) $(CFLAGS) -c -I..\.. untgz.c
+-
+-..\..\zlib.lib:
+- cd ..\..
+- $(MAKE) -f win32\makefile.msc
+- cd contrib\untgz
+-
+-clean:
+- -del untgz.obj
+- -del untgz.exe
+diff --git a/contrib/untgz/untgz.c b/contrib/untgz/untgz.c
+deleted file mode 100644
+index 7857921..0000000
+--- a/contrib/untgz/untgz.c
++++ /dev/null
+@@ -1,667 +0,0 @@
+-/*
+- * untgz.c -- Display contents and extract files from a gzip'd TAR file
+- *
+- * written by Pedro A. Aranda Gutierrez <paag@tid.es>
+- * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org>
+- * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro>
+- *
+- * This software is provided 'as-is', without any express or implied
+- * warranty. In no event will the authors be held liable for any damages
+- * arising from the use of this software.
+- *
+- * Permission is granted to anyone to use this software for any purpose,
+- * including commercial applications, and to alter it and redistribute it
+- * freely, subject to the following restrictions:
+- *
+- * 1. The origin of this software must not be misrepresented; you must not
+- * claim that you wrote the original software. If you use this software
+- * in a product, an acknowledgment in the product documentation would be
+- * appreciated but is not required.
+- * 2. Altered source versions must be plainly marked as such, and must not be
+- * misrepresented as being the original software.
+- * 3. This notice may not be removed or altered from any source distribution.
+- */
+-
+-#include <stdio.h>
+-#include <stdlib.h>
+-#include <string.h>
+-#include <time.h>
+-#include <errno.h>
+-
+-#include "zlib.h"
+-
+-#ifdef _WIN32
+-# include <direct.h>
+-# include <io.h>
+-# include <windows.h>
+-# ifndef F_OK
+-# define F_OK 0
+-# endif
+-# define mkdir(dirname,mode) _mkdir(dirname)
+-# ifdef _MSC_VER
+-# define access(path,mode) _access(path,mode)
+-# define chmod(path,mode) _chmod(path,mode)
+-# define strdup(str) _strdup(str)
+-# endif
+-#else
+-# include <sys/stat.h>
+-# include <unistd.h>
+-# include <utime.h>
+-#endif
+-
+-
+-/* values used in typeflag field */
+-
+-#define REGTYPE '0' /* regular file */
+-#define AREGTYPE '\0' /* regular file */
+-#define LNKTYPE '1' /* link */
+-#define SYMTYPE '2' /* reserved */
+-#define CHRTYPE '3' /* character special */
+-#define BLKTYPE '4' /* block special */
+-#define DIRTYPE '5' /* directory */
+-#define FIFOTYPE '6' /* FIFO special */
+-#define CONTTYPE '7' /* reserved */
+-
+-/* GNU tar extensions */
+-
+-#define GNUTYPE_DUMPDIR 'D' /* file names from dumped directory */
+-#define GNUTYPE_LONGLINK 'K' /* long link name */
+-#define GNUTYPE_LONGNAME 'L' /* long file name */
+-#define GNUTYPE_MULTIVOL 'M' /* continuation of file from another volume */
+-#define GNUTYPE_NAMES 'N' /* file name that does not fit into main hdr */
+-#define GNUTYPE_SPARSE 'S' /* sparse file */
+-#define GNUTYPE_VOLHDR 'V' /* tape/volume header */
+-
+-
+-/* tar header */
+-
+-#define BLOCKSIZE 512
+-#define SHORTNAMESIZE 100
+-
+-struct tar_header
+-{ /* byte offset */
+- char name[100]; /* 0 */
+- char mode[8]; /* 100 */
+- char uid[8]; /* 108 */
+- char gid[8]; /* 116 */
+- char size[12]; /* 124 */
+- char mtime[12]; /* 136 */
+- char chksum[8]; /* 148 */
+- char typeflag; /* 156 */
+- char linkname[100]; /* 157 */
+- char magic[6]; /* 257 */
+- char version[2]; /* 263 */
+- char uname[32]; /* 265 */
+- char gname[32]; /* 297 */
+- char devmajor[8]; /* 329 */
+- char devminor[8]; /* 337 */
+- char prefix[155]; /* 345 */
+- /* 500 */
+-};
+-
+-union tar_buffer
+-{
+- char buffer[BLOCKSIZE];
+- struct tar_header header;
+-};
+-
+-struct attr_item
+-{
+- struct attr_item *next;
+- char *fname;
+- int mode;
+- time_t time;
+-};
+-
+-enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID };
+-
+-char *prog;
+-
+-void error(const char *msg)
+-{
+- fprintf(stderr, "%s: %s\n", prog, msg);
+- exit(1);
+-}
+-
+-const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL };
+-
+-/* return the file name of the TGZ archive */
+-/* or NULL if it does not exist */
+-
+-char *TGZfname (const char *arcname)
+-{
+- static char buffer[1024];
+- int origlen,i;
+-
+- strcpy(buffer,arcname);
+- origlen = strlen(buffer);
+-
+- for (i=0; TGZsuffix[i]; i++)
+- {
+- strcpy(buffer+origlen,TGZsuffix[i]);
+- if (access(buffer,F_OK) == 0)
+- return buffer;
+- }
+- return NULL;
+-}
+-
+-
+-/* error message for the filename */
+-
+-void TGZnotfound (const char *arcname)
+-{
+- int i;
+-
+- fprintf(stderr,"%s: Couldn't find ",prog);
+- for (i=0;TGZsuffix[i];i++)
+- fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n",
+- arcname,
+- TGZsuffix[i]);
+- exit(1);
+-}
+-
+-
+-/* convert octal digits to int */
+-/* on error return -1 */
+-
+-int getoct (char *p,int width)
+-{
+- int result = 0;
+- char c;
+-
+- while (width--)
+- {
+- c = *p++;
+- if (c == 0)
+- break;
+- if (c == ' ')
+- continue;
+- if (c < '0' || c > '7')
+- return -1;
+- result = result * 8 + (c - '0');
+- }
+- return result;
+-}
+-
+-
+-/* convert time_t to string */
+-/* use the "YYYY/MM/DD hh:mm:ss" format */
+-
+-char *strtime (time_t *t)
+-{
+- struct tm *local;
+- static char result[32];
+-
+- local = localtime(t);
+- sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d",
+- local->tm_year+1900, local->tm_mon+1, local->tm_mday,
+- local->tm_hour, local->tm_min, local->tm_sec);
+- return result;
+-}
+-
+-
+-/* set file time */
+-
+-int setfiletime (char *fname,time_t ftime)
+-{
+-#ifdef _WIN32
+- static int isWinNT = -1;
+- SYSTEMTIME st;
+- FILETIME locft, modft;
+- struct tm *loctm;
+- HANDLE hFile;
+- int result;
+-
+- loctm = localtime(&ftime);
+- if (loctm == NULL)
+- return -1;
+-
+- st.wYear = (WORD)loctm->tm_year + 1900;
+- st.wMonth = (WORD)loctm->tm_mon + 1;
+- st.wDayOfWeek = (WORD)loctm->tm_wday;
+- st.wDay = (WORD)loctm->tm_mday;
+- st.wHour = (WORD)loctm->tm_hour;
+- st.wMinute = (WORD)loctm->tm_min;
+- st.wSecond = (WORD)loctm->tm_sec;
+- st.wMilliseconds = 0;
+- if (!SystemTimeToFileTime(&st, &locft) ||
+- !LocalFileTimeToFileTime(&locft, &modft))
+- return -1;
+-
+- if (isWinNT < 0)
+- isWinNT = (GetVersion() < 0x80000000) ? 1 : 0;
+- hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+- (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0),
+- NULL);
+- if (hFile == INVALID_HANDLE_VALUE)
+- return -1;
+- result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1;
+- CloseHandle(hFile);
+- return result;
+-#else
+- struct utimbuf settime;
+-
+- settime.actime = settime.modtime = ftime;
+- return utime(fname,&settime);
+-#endif
+-}
+-
+-
+-/* push file attributes */
+-
+-void push_attr(struct attr_item **list,char *fname,int mode,time_t time)
+-{
+- struct attr_item *item;
+-
+- item = (struct attr_item *)malloc(sizeof(struct attr_item));
+- if (item == NULL)
+- error("Out of memory");
+- item->fname = strdup(fname);
+- item->mode = mode;
+- item->time = time;
+- item->next = *list;
+- *list = item;
+-}
+-
+-
+-/* restore file attributes */
+-
+-void restore_attr(struct attr_item **list)
+-{
+- struct attr_item *item, *prev;
+-
+- for (item = *list; item != NULL; )
+- {
+- setfiletime(item->fname,item->time);
+- chmod(item->fname,item->mode);
+- prev = item;
+- item = item->next;
+- free(prev);
+- }
+- *list = NULL;
+-}
+-
+-
+-/* match regular expression */
+-
+-#define ISSPECIAL(c) (((c) == '*') || ((c) == '/'))
+-
+-int ExprMatch (char *string,char *expr)
+-{
+- while (1)
+- {
+- if (ISSPECIAL(*expr))
+- {
+- if (*expr == '/')
+- {
+- if (*string != '\\' && *string != '/')
+- return 0;
+- string ++; expr++;
+- }
+- else if (*expr == '*')
+- {
+- if (*expr ++ == 0)
+- return 1;
+- while (*++string != *expr)
+- if (*string == 0)
+- return 0;
+- }
+- }
+- else
+- {
+- if (*string != *expr)
+- return 0;
+- if (*expr++ == 0)
+- return 1;
+- string++;
+- }
+- }
+-}
+-
+-
+-/* recursive mkdir */
+-/* abort on ENOENT; ignore other errors like "directory already exists" */
+-/* return 1 if OK */
+-/* 0 on error */
+-
+-int makedir (char *newdir)
+-{
+- char *buffer = strdup(newdir);
+- char *p;
+- int len = strlen(buffer);
+-
+- if (len <= 0) {
+- free(buffer);
+- return 0;
+- }
+- if (buffer[len-1] == '/') {
+- buffer[len-1] = '\0';
+- }
+- if (mkdir(buffer, 0755) == 0)
+- {
+- free(buffer);
+- return 1;
+- }
+-
+- p = buffer+1;
+- while (1)
+- {
+- char hold;
+-
+- while(*p && *p != '\\' && *p != '/')
+- p++;
+- hold = *p;
+- *p = 0;
+- if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT))
+- {
+- fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer);
+- free(buffer);
+- return 0;
+- }
+- if (hold == 0)
+- break;
+- *p++ = hold;
+- }
+- free(buffer);
+- return 1;
+-}
+-
+-
+-int matchname (int arg,int argc,char **argv,char *fname)
+-{
+- if (arg == argc) /* no arguments given (untgz tgzarchive) */
+- return 1;
+-
+- while (arg < argc)
+- if (ExprMatch(fname,argv[arg++]))
+- return 1;
+-
+- return 0; /* ignore this for the moment being */
+-}
+-
+-
+-/* tar file list or extract */
+-
+-int tar (gzFile in,int action,int arg,int argc,char **argv)
+-{
+- union tar_buffer buffer;
+- int len;
+- int err;
+- int getheader = 1;
+- int remaining = 0;
+- FILE *outfile = NULL;
+- char fname[BLOCKSIZE];
+- int tarmode;
+- time_t tartime;
+- struct attr_item *attributes = NULL;
+-
+- if (action == TGZ_LIST)
+- printf(" date time size file\n"
+- " ---------- -------- --------- -------------------------------------\n");
+- while (1)
+- {
+- len = gzread(in, &buffer, BLOCKSIZE);
+- if (len < 0)
+- error(gzerror(in, &err));
+- /*
+- * Always expect complete blocks to process
+- * the tar information.
+- */
+- if (len != BLOCKSIZE)
+- {
+- action = TGZ_INVALID; /* force error exit */
+- remaining = 0; /* force I/O cleanup */
+- }
+-
+- /*
+- * If we have to get a tar header
+- */
+- if (getheader >= 1)
+- {
+- /*
+- * if we met the end of the tar
+- * or the end-of-tar block,
+- * we are done
+- */
+- if (len == 0 || buffer.header.name[0] == 0)
+- break;
+-
+- tarmode = getoct(buffer.header.mode,8);
+- tartime = (time_t)getoct(buffer.header.mtime,12);
+- if (tarmode == -1 || tartime == (time_t)-1)
+- {
+- buffer.header.name[0] = 0;
+- action = TGZ_INVALID;
+- }
+-
+- if (getheader == 1)
+- {
+- strncpy(fname,buffer.header.name,SHORTNAMESIZE);
+- if (fname[SHORTNAMESIZE-1] != 0)
+- fname[SHORTNAMESIZE] = 0;
+- }
+- else
+- {
+- /*
+- * The file name is longer than SHORTNAMESIZE
+- */
+- if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0)
+- error("bad long name");
+- getheader = 1;
+- }
+-
+- /*
+- * Act according to the type flag
+- */
+- switch (buffer.header.typeflag)
+- {
+- case DIRTYPE:
+- if (action == TGZ_LIST)
+- printf(" %s <dir> %s\n",strtime(&tartime),fname);
+- if (action == TGZ_EXTRACT)
+- {
+- makedir(fname);
+- push_attr(&attributes,fname,tarmode,tartime);
+- }
+- break;
+- case REGTYPE:
+- case AREGTYPE:
+- remaining = getoct(buffer.header.size,12);
+- if (remaining == -1)
+- {
+- action = TGZ_INVALID;
+- break;
+- }
+- if (action == TGZ_LIST)
+- printf(" %s %9d %s\n",strtime(&tartime),remaining,fname);
+- else if (action == TGZ_EXTRACT)
+- {
+- if (matchname(arg,argc,argv,fname))
+- {
+- outfile = fopen(fname,"wb");
+- if (outfile == NULL) {
+- /* try creating directory */
+- char *p = strrchr(fname, '/');
+- if (p != NULL) {
+- *p = '\0';
+- makedir(fname);
+- *p = '/';
+- outfile = fopen(fname,"wb");
+- }
+- }
+- if (outfile != NULL)
+- printf("Extracting %s\n",fname);
+- else
+- fprintf(stderr, "%s: Couldn't create %s",prog,fname);
+- }
+- else
+- outfile = NULL;
+- }
+- getheader = 0;
+- break;
+- case GNUTYPE_LONGLINK:
+- case GNUTYPE_LONGNAME:
+- remaining = getoct(buffer.header.size,12);
+- if (remaining < 0 || remaining >= BLOCKSIZE)
+- {
+- action = TGZ_INVALID;
+- break;
+- }
+- len = gzread(in, fname, BLOCKSIZE);
+- if (len < 0)
+- error(gzerror(in, &err));
+- if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining)
+- {
+- action = TGZ_INVALID;
+- break;
+- }
+- getheader = 2;
+- break;
+- default:
+- if (action == TGZ_LIST)
+- printf(" %s <---> %s\n",strtime(&tartime),fname);
+- break;
+- }
+- }
+- else
+- {
+- unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining;
+-
+- if (outfile != NULL)
+- {
+- if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes)
+- {
+- fprintf(stderr,
+- "%s: Error writing %s -- skipping\n",prog,fname);
+- fclose(outfile);
+- outfile = NULL;
+- remove(fname);
+- }
+- }
+- remaining -= bytes;
+- }
+-
+- if (remaining == 0)
+- {
+- getheader = 1;
+- if (outfile != NULL)
+- {
+- fclose(outfile);
+- outfile = NULL;
+- if (action != TGZ_INVALID)
+- push_attr(&attributes,fname,tarmode,tartime);
+- }
+- }
+-
+- /*
+- * Abandon if errors are found
+- */
+- if (action == TGZ_INVALID)
+- {
+- error("broken archive");
+- break;
+- }
+- }
+-
+- /*
+- * Restore file modes and time stamps
+- */
+- restore_attr(&attributes);
+-
+- if (gzclose(in) != Z_OK)
+- error("failed gzclose");
+-
+- return 0;
+-}
+-
+-
+-/* ============================================================ */
+-
+-void help(int exitval)
+-{
+- printf("untgz version 0.2.1\n"
+- " using zlib version %s\n\n",
+- zlibVersion());
+- printf("Usage: untgz file.tgz extract all files\n"
+- " untgz file.tgz fname ... extract selected files\n"
+- " untgz -l file.tgz list archive contents\n"
+- " untgz -h display this help\n");
+- exit(exitval);
+-}
+-
+-
+-/* ============================================================ */
+-
+-#if defined(WIN32) && defined(__GNUC__)
+-int _CRT_glob = 0; /* disable argument globbing in MinGW */
+-#endif
+-
+-int main(int argc,char **argv)
+-{
+- int action = TGZ_EXTRACT;
+- int arg = 1;
+- char *TGZfile;
+- gzFile f;
+-
+- prog = strrchr(argv[0],'\\');
+- if (prog == NULL)
+- {
+- prog = strrchr(argv[0],'/');
+- if (prog == NULL)
+- {
+- prog = strrchr(argv[0],':');
+- if (prog == NULL)
+- prog = argv[0];
+- else
+- prog++;
+- }
+- else
+- prog++;
+- }
+- else
+- prog++;
+-
+- if (argc == 1)
+- help(0);
+-
+- if (strcmp(argv[arg],"-l") == 0)
+- {
+- action = TGZ_LIST;
+- if (argc == ++arg)
+- help(0);
+- }
+- else if (strcmp(argv[arg],"-h") == 0)
+- {
+- help(0);
+- }
+-
+- if ((TGZfile = TGZfname(argv[arg])) == NULL)
+- TGZnotfound(argv[arg]);
+-
+- ++arg;
+- if ((action == TGZ_LIST) && (arg != argc))
+- help(1);
+-
+-/*
+- * Process the TGZ file
+- */
+- switch(action)
+- {
+- case TGZ_LIST:
+- case TGZ_EXTRACT:
+- f = gzopen(TGZfile,"rb");
+- if (f == NULL)
+- {
+- fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile);
+- return 1;
+- }
+- exit(tar(f, action, arg, argc, argv));
+- break;
+-
+- default:
+- error("Unknown option");
+- exit(1);
+- }
+-
+- return 0;
+-}
+--
+2.34.1
+
diff --git a/meta/recipes-core/zlib/zlib_1.3.1.bb b/meta/recipes-core/zlib/zlib_1.3.1.bb
index 592b7f1422..cd6cdb6aa6 100644
--- a/meta/recipes-core/zlib/zlib_1.3.1.bb
+++ b/meta/recipes-core/zlib/zlib_1.3.1.bb
@@ -9,6 +9,7 @@ LIC_FILES_CHKSUM = "file://zlib.h;beginline=6;endline=23;md5=5377232268e952e9ef6
# The source tarball needs to be .gz as only the .gz ends up in fossils/
SRC_URI = "https://zlib.net/${BP}.tar.gz \
file://0001-configure-Pass-LDFLAGS-to-link-tests.patch \
+ file://CVE-2026-22184.patch \
file://run-ptest \
"
UPSTREAM_CHECK_URI = "http://zlib.net/"
--
2.34.1
next reply other threads:[~2026-01-19 8:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-19 8:16 mingli.yu [this message]
2026-01-19 8:58 ` [OE-core] [PATCH] zlib: Fix CVE-2026-22184 Marko, Peter
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