Announcing NetBSD 5.2.1
The NetBSD Project is pleased to announce that version 5.2.1 of the NetBSD operating system is now available. NetBSD 5.2.1 is the first critical/security update of the NetBSD 5.2 release branch. It represents a selected subset of fixes deemed critical for security or stability reasons.
Please note that all fixes in critical/security updates (i.e., NetBSD 5.0.2, 5.1.3, etc.) are cumulative, so the latest update contains all such fixes since the corresponding minor release. These fixes will also appear in future minor releases (i.e., NetBSD 5.3, etc.), together with other less-critical fixes and feature enhancements.
Complete source and binaries for NetBSD 5.2.1 are available for download at many sites around the world. A list of download sites providing FTP, HTTP, AnonCVS, SUP, and other services may be found at http://www.NetBSD.org/mirrors/. We encourage users who wish to install via ISO images to download via BitTorrent by using the torrent files supplied in the ISO image area. A list of hashes for the NetBSD 5.2.1 distribution has been signed with the well-connected PGP key for the NetBSD Security Officer: http://ftp.NetBSD.org/pub/NetBSD/security/hashes/NetBSD-5.2.1_hashes.asc
NetBSD is free. All of the code is under non-restrictive licenses, and may be used without paying royalties to anyone. Free support services are available via our mailing lists and website. Commercial support is available from a variety of sources. More information on NetBSD is available from our website:
The complete list of changes can be found in the CHANGES-5.2.1 file in the top level directory of the NetBSD 5.2.1 release tree. An abbreviated list is as follows:
- NetBSD-SA2013-004Vulnerabilities in grep
- NetBSD-SA2013-005bind Denial of Service (CVE-2013-4854)
- NetBSD-SA2013-006Arbitrary Kernel Read with netstat -P
- NetBSD-SA2013-007Protocol handling issues in X Window System client libraries
- NetBSD-SA2013-009user settable small BPF buffer can cause a panic
Note: Advisories prior to NetBSD-SA2013-004 do not affect NetBSD 5.2.1.
- Fixed a panic triggered when killing a process waiting to start. (PR#44935)
- Fixed a LOCKDEBUG panic in sysctl path. (PR#45827)
- Fixed diagnostic panic when killing a traced process. (PR#42309)
- fss(4): Don't crash when running multiple "dump -X". (PR#47514)
Using block device nodes (e.g., wd0a) directly for I/O may cause a kernel crash when the file system containing /dev is FFS and is mounted with -o log. Workaround: use raw disk devices (e.g., rwd0a), or remount the file system without -o log.
Occasionally, gdb may cause a process that is being debugged to hang when "single stepped". Workaround: kill and restart the affected process.
gdb cannot debug running threaded programs correctly. Workaround: generate a core file from the program using gcore(1) and pass the core to gdb, instead of debugging the running program.
Statically linked binaries using pthreads are currently broken.
Please use a mirror site close to you.
The NetBSD 5.2.1 release provides supported binary distributions for the following systems:
|NetBSD/acorn26||Acorn Archimedes, A-series and R-series systems|
|NetBSD/acorn32||Acorn RiscPC/A7000, VLSI RC7500|
|NetBSD/algor||Algorithmics, Ltd. MIPS evaluation boards|
|NetBSD/alpha||Digital/Compaq Alpha (64-bit)|
|NetBSD/amd64||AMD family processors like Opteron, Athlon64, and Intel CPUs with EM64T extension|
|NetBSD/amiga||Commodore Amiga and MacroSystem DraCo|
|NetBSD/arc||MIPS-based machines following the Advanced RISC Computing spec|
|NetBSD/atari||Atari TT030, Falcon, Hades|
|NetBSD/bebox||Be Inc's BeBox|
|NetBSD/cats||Chalice Technology's CATS and Intel's EBSA-285 evaluation boards|
|NetBSD/cesfic||CES FIC8234 VME processor board|
|NetBSD/cobalt||Cobalt Networks' MIPS-based Microservers|
|NetBSD/dreamcast||Sega Dreamcast game console|
|NetBSD/evbarm||Various ARM-based evaluation boards and appliances|
|NetBSD/evbmips||Various MIPS-based evaluation boards and appliances|
|NetBSD/evbppc||Various PowerPC-based evaluation boards and appliances|
|NetBSD/evbsh3||Various Hitachi Super-H SH3 and SH4-based evaluation boards and appliances|
|NetBSD/ews4800mips||NEC's MIPS-based EWS4800 workstation|
|NetBSD/hp300||Hewlett-Packard 9000/300 and 400 series|
|NetBSD/hppa||Hewlett-Packard 9000 Series 700 workstations|
|NetBSD/hpcarm||StrongARM based Windows CE PDA machines|
|NetBSD/hpcmips||MIPS-based Windows CE PDA machines|
|NetBSD/hpcsh||Hitachi Super-H based Windows CE PDA machines|
|NetBSD/i386||IBM PCs and PC clones with i486-family processors and up|
|NetBSD/ibmnws||IBM Network Station 1000|
|NetBSD/iyonix||Castle Technology's Iyonix ARM based PCs|
|NetBSD/landisk||SH4 processor based NAS appliances|
|NetBSD/luna68k||OMRON Tateisi Electric's LUNA series|
|NetBSD/mac68k||Apple Macintosh with Motorola 68k CPU|
|NetBSD/macppc||Apple PowerPC-based Macintosh and clones|
|NetBSD/mipsco||MIPS Computer Systems Inc. family of workstations and servers|
|NetBSD/mmeye||Brains mmEye multimedia server|
|NetBSD/mvme68k||Motorola MVME 68k Single Board Computers|
|NetBSD/mvmeppc||Motorola PowerPC VME Single Board Computers|
|NetBSD/netwinder||StrongARM based NetWinder machines|
|NetBSD/news68k||Sony's 68k-based “NET WORK STATION” series|
|NetBSD/newsmips||Sony's MIPS-based “NET WORK STATION” series|
|NetBSD/next68k||NeXT 68k “black” hardware|
|NetBSD/ofppc||OpenFirmware PowerPC machines|
|NetBSD/pmax||Digital MIPS-based DECstations and DECsystems|
|NetBSD/prep||PReP (PowerPC Reference Platform) and CHRP machines|
|NetBSD/sandpoint||Motorola Sandpoint reference platform|
|NetBSD/sbmips||Broadcom SiByte evaluation boards|
|NetBSD/sgimips||Silicon Graphics' MIPS-based workstations|
|NetBSD/shark||Digital DNARD (“shark”)|
|NetBSD/sparc||Sun SPARC (32-bit) and UltraSPARC (in 32-bit mode)|
|NetBSD/sparc64||Sun UltraSPARC (in native 64-bit mode)|
|NetBSD/sun2||Sun Microsystems Sun 2 machines with Motorola 68010 CPU|
|NetBSD/sun3||Motorola 68020 and 030 based Sun 3 and 3x machines|
|NetBSD/x68k||Sharp X680x0 series|
|NetBSD/xen||The Xen virtual machine monitor|
|NetBSD/zaurus||Sharp ARM PDAs|
Ports available in source form only for this release include the following:
|NetBSD/amigappc||PowerPC-based Amiga boards|
|NetBSD/ia64||Itanium family of processors|
|NetBSD/rs6000||IBM RS/6000 MCA-based PowerPC machines.|
The NetBSD Foundation would like to thank all those who have contributed code, hardware, documentation, funds, colocation for our servers, web pages and other documentation, release engineering, and other resources over the years. More information on the people who make NetBSD happen is available at:
We would like to especially thank the University of California at Berkeley and the GNU Project for particularly large subsets of code that we use. We would also like to thank the Internet Systems Consortium Inc., and the Network Security Lab at Columbia University's Computer Science Department for current colocation services.
NetBSD is a free, fast, secure, and highly portable Unix-like Open Source operating system. It is available for a wide range of platforms, from large-scale servers and powerful desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent for use in both production and research environments, and the source code is freely available under a business-friendly license. NetBSD is developed and supported by a large and vivid international community. Many applications are readily available through pkgsrc, the NetBSD Packages Collection.
The NetBSD Foundation was chartered in 1995, with the task of overseeing core NetBSD project services, promoting the project within industry and the open source community, and holding intellectual property rights on much of the NetBSD code base. Day-to-day operations of the project are handled by volunteers.
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