NetBSD NetBSD is a free, secure, and highly portable UNIX-like operating system.
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NetBSD is a free, secure, and highly portable UNIX-like operating system. NetBSD is a free, secure, and highly portable Unix-like Open Source operating system available for many platforms, from 64-bit Opteron machines and desktop systems to handheld and embedded devices.Its clean design and advanced features make it excellent in both production and research environments, and it is user-supported with complete source. Many applications are easily available through The NetBSD Packages Collection. Here are some key features of "NetBSD": · Clean design · Wide platform support · BSD License · Full source availability · Security · Mature and stable · Hype free · Packet filtering and Network Address Translation (NAT) · IPv6 · Network File System (NFS) · Comprehensive and robust networking · Wireless networking · Hardware and software RAID · High performance PCI IDE · SCSIPI subsystem - combined SCSI and ATAPI · 64-bit filesystems · Large IDE disks · Soft Updates on FFS for high performance and reliability · Many filesystem types · DVD ROM and RAM · The package system (applications) · Machine independent driver framework · Machine independent audio framework · Kernel debugging · OS emulation · USB (Universal serial bus) · Other device support · The UVM virtual memory system · Cardbus · wscons machine independent console · 64-bit clean · Non-executable stack and heap What's New in This Release: Security Advisory Fixes: · NetBSD-SA2009-004, NetBSD OpenPAM passwd(1) changing weakness. · NetBSD-SA2009-005, Plaintext Recovery Attack Against SSH. · NetBSD-SA2009-006, Buffer overflows in ntp. · NetBSD-SA2009-007, Buffer overflows in hack(6). · NetBSD-SA2009-008, OpenSSL ASN1 parsing denial of service and CMS signature verification weakness. · NetBSD-SA2009-009, OpenSSL DTLS Memory Exhaustion and DSA signature verification vulnerabilities. · NetBSD-SA2009-010, ISC dhclient subnet-mask flag stack overflow. · NetBSD-SA2009-011, ISC DHCP server Denial of Service vulnerability. · NetBSD-SA2009-012, SHA2 implementation potential buffer overflow. · NetBSD-SA2009-013, BIND named dynamic update Denial of Service vulnerability. · Note: Advisories prior to NetBSD-SA2009-004 do not affect NetBSD 5.0. Kernel: · Fix random "filesystem full" messages on large FFS file systems. · Fix a regression in the 4.4BSD scheduler, improving interactive performance under load. · Remove a race where physio_done() may use memory already freed. Fixes PR kern/39536. · Fix a crash observed when trying to load a corrupted ELF kernel module. · Fix PR kern/41566, where writes on the controlling tty were not being awoken from blocks. · Various fixes for POSIX message queues. · Fix a possible deadlock in the VFS subsystem. · Fixes for POSIX advisory locks. · A number of other stability fixes. Networking: · Follow exactly the recommendation of draft-ietf-tcpm-tcpsecure-11.txt: Don't check gainst the last ack received, but the expected sequence number. This makes RST handling independent of delayed ACK. · Fix a panic when trying to disable IPFilter before enabling it. Fixes PR kern/41364. Drivers: · ehci(4): Add a workaround for ATI SB600 and SB700 revisions A12 and A13 to avoid a USB subsystem hang when the system has multiple USB devices connected to it or one device is re-connected often. wm(4): · On i82563, FreeBSD's em driver says that the ready bit in the MDIC register may be incorrectly set. Insert delay(200) like the em driver. Fixes PR kern/41014. · Add workaround for 82543GC. We need to force speed and duplex on the MAC equal to what the PHY speed and duplex configuration is. Fixes PR kern/36430. · Fix many problems and panic on TBI's cards (PR kern/32009). Platform specific: · x86 (amd64 and i386): Add a workaround for a bug with some Opteron revisions where locked operations sometimes do not serve as memory barriers, allowing memory references to bleed outside of critical sections. · amd64: Handle protection faults properly, returning SIGSEGV instead of SIGBUS. · hp300: Make install.md probe cd(4) devices properly. · pmax: Make ksyms(4) actually work. · sh3: Fix logic error in copyinstr() when deciding whether to return EFAULT or ENAMETOOLONG. sparc64: · Fix long double support in 32bit libc. Fixes PR port-sparc64/41406. · When preparing the initial trap frame for a new forked lwp, explicitly clear condition code. Otherwise we might catch a signal before we ever return to userland. Fixes PR port-sparc64/41302. · vax: binutils: Allocate relocation section using bfd_zalloc() to ensure no garbage relocations when not all the entries are used. Fixes PR port-vax/39182. Userland: · Update pkg_install to 20090724. · pkg_install now depends on the pkgdb cache for automatic conflict detection. It is recommended to rebuild the cache with "pkg_admin rebuild". audit-packages.conf(5) has been superseded by pkg_install.conf(5). The default configuration is the same. Support for pkg_view(1) has been retired. The functionality of audit-packages(1) and download-vulnerability-list(1) has moved into pkg_admin(1). Wrapper scripts that handle the common use cases are provided. · Update libfetch to 2.23. · racoonctl(8): Adjust ADMINPORTDIR to match that of racoon (/var/run). Fixes PR bin/41376. · schedctl(8): Skip LSIDL and LSZOMB threads when retrieving info. · postinstall(8) now knows about /etc/dhcpcd.conf. Miscellaneous: · The X.Org s3 driver now works. · Install the Xvidtune app-defaults file. Fixes to Linux compat: · In sendmsg(2), do copy the msghdr structure before trying to use it. · In linux_sys_sched_getaffinity(), do not leak memory on error. · Various METALOG fixes, including sorting entries. Addresses PR toolchain/24457 and PR bin/41155.

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