Konstantin Belousov 987ff18184 Consistently handle negative or wrapping offsets in the mmap(2) syscalls. ... For regular files and posix shared memory, POSIX requires that [offset, offset + size) range is legitimate. At the maping time, check that offset is not negative. Allowing negative offsets might expose the data that filesystem put into vm_object for internal use, esp. due to OFF_TO_IDX() signess treatment. Fault handler verifies that the mapped range is valid, assuming that mmap(2) checked that arithmetic gives no undefined results. For device mappings, leave the semantic of negative offsets to the driver. Correct object page index calculation to not erronously propagate sign. In either case, disallow overflow of offset + size. Update mmap(2) man page to explain the requirement of the range validity, and behaviour when the range becomes invalid after mapping. Reported and tested by: royger (previous version) Reviewed by: alc Sponsored by: The FreeBSD Foundation MFC after: 2 weeks		2017-02-12 21:05:44 +00:00
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aarch64	Fix the comment showing the meaning of the first argument to sigprocmask.	2017-02-03 11:51:06 +00:00
amd64	Reduce duplicate NOASM and PSEUDO definitions	2016-09-08 22:38:20 +00:00
arm	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
capability	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
compat-43	Use ANSI C prototypes. Eliminates -Wold-style-definition warnings.	2015-09-20 20:53:24 +00:00
db	Sync ^/vendor/NetBSD/tests/dist with upstream	2017-01-12 07:26:39 +00:00
gdtoa	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
gen	Fix grammar in getpeereid(3)	2017-02-04 00:37:25 +00:00
gmon	Replace the last non-optional use of sbrk() in the tree with mmap().	2016-01-21 18:17:19 +00:00
i386	Reduce duplicate NOASM and PSEUDO definitions	2016-09-08 22:38:20 +00:00
iconv	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
include	Export __cxa_thread_atexit_impl as an alias for __cxa_thread_atexit.	2017-01-07 16:05:19 +00:00
inet	Update ^/vendor/NetBSD/tests/dist to a more recent snapshot	2016-08-12 01:05:07 +00:00
isc	libc: do not include <sys/types.h> where <sys/param.h> was already included	2016-04-18 21:05:15 +00:00
locale	Move __hidden attribute towards the end of the declaration.	2016-12-31 15:30:00 +00:00
md	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
mips	Add full softfloat and hardfloat support for MIPS.	2016-10-31 15:33:58 +00:00
nameser	libc: spelling fixes.	2016-04-30 01:24:24 +00:00
net	Sync ^/vendor/NetBSD/tests/dist with upstream	2017-01-12 07:26:39 +00:00
nls	Use current locale (f.e. set by thread). It was global locale always	2016-08-24 16:44:27 +00:00
posix1e	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
powerpc	Fix a typo which broke the build for powerpc.	2016-10-25 01:32:35 +00:00
powerpc64	Reduce duplicate NOASM and PSEUDO definitions	2016-09-08 22:38:20 +00:00
powerpcspe	Fix a copy&paste-o causing a segfault with sigsetjmp.	2016-10-29 01:22:55 +00:00
quad	Remove MK_ARM_EABI, the armeb issues have been fixed. The code to support	2014-10-01 08:26:51 +00:00
regex	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
resolv	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
riscv	Add full softfloat and hardfloat support for RISC-V.	2016-11-16 15:21:32 +00:00
rpc	Sync ^/vendor/NetBSD/tests/dist with upstream	2017-01-12 07:26:39 +00:00
secure	libc: do not include <sys/types.h> where <sys/param.h> was already included	2016-04-18 21:05:15 +00:00
softfloat	Add full softfloat and hardfloat support for RISC-V.	2016-11-16 15:21:32 +00:00
sparc64	Reduce duplicate NOASM and PSEUDO definitions	2016-09-08 22:38:20 +00:00
stdio	Revert r310138	2016-12-22 22:30:42 +00:00
stdlib	hcreate(3): fix the ERRORS section and bump .Dd	2017-02-07 02:32:49 +00:00
stdtime	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
string	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
sys	Consistently handle negative or wrapping offsets in the mmap(2) syscalls.	2017-02-12 21:05:44 +00:00
tests	Manipulate OBJDIR with :H when referencing dso directory	2017-02-11 20:14:50 +00:00
uuid	libc: replace 0 with NULL for pointers.	2016-04-10 19:33:58 +00:00
x86/sys	Only conditionally add in hyperv support if we're building amd64	2017-01-19 18:07:24 +00:00
xdr	libc/xdr: unsign some loop indexes.	2016-05-06 16:03:40 +00:00
yp	Use on crypto.x and rpc.x from the source tree.	2016-06-28 19:53:16 +00:00
libc.ldscript	Attempt to move the POSIX iconv* symbols out of runtime linker space.	2013-11-17 22:52:17 +00:00
libc_nossp.ldscript	Add different libc ldscript: the one without libssp --	2016-10-12 13:19:21 +00:00
Makefile	Replace dot-dot relative pathing with SRCTOP-relative paths where possible	2017-01-20 03:23:24 +00:00
Makefile.depend	DIRDEPS_BUILD: Regenerate without local dependencies.	2016-02-24 17:20:11 +00:00
Versions.def	Create namespace for the symbols added during 12-CURRENT cycle.	2016-08-06 13:28:58 +00:00