Sergey Bugaev 8cbab3b729 hurd: Protect against servers returning bogus read/write lengths ... There already was a branch checking for this case in _hurd_fd_read () when the data is returned out-of-line. Do the same for inline data, as well as for _hurd_fd_write (). It's also not possible for the length to be negative, since it's stored in an unsigned integer. Not verifying the returned length can confuse the callers who assume the returned length is always reasonable. This manifested as libzstd test suite failing on writes to /dev/zero, even though the write () call appeared to succeed. In fact, the zero store backing /dev/zero was returning a larger written length than the size actually submitted to it, which is a separate bug to be fixed on the Hurd side. With this patch, EGRATUITOUS is now propagated to the caller. Reported-by: Diego Nieto Cid <dnietoc@gmail.com> Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Message-ID: <20241204112915.540032-1-bugaevc@gmail.com>		2024-12-05 08:49:35 +01:00
..
hurd	hurd: Stop mapping AT_NO_AUTOMOUNT to O_NOTRANS	2024-04-30 22:08:16 +02:00
alloc-fd.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
catch-exc.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
catch-signal.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
compat-20.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
ctty-input.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
ctty-output.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
Depend	* Makefile (subdir-target-args): New variable.	2006-02-28 07:11:04 +00:00
dtable.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
exc2signal.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
faultexc.defs	Sun May 12 11:16:58 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>	1996-05-12 16:38:08 +00:00
fchroot.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
fcntl-internal.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
fd-cleanup.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
fd-close.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
fd-read.c	hurd: Protect against servers returning bogus read/write lengths	2024-12-05 08:49:35 +01:00
fd-write.c	hurd: Protect against servers returning bogus read/write lengths	2024-12-05 08:49:35 +01:00
fopenport.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
get-host.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
getdport.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
geteuids.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
getumask.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurd-raise.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurd.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdauth.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdchdir.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdexec.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdfault.c	x86_64 hurd: ensure we have a large enough buffer to receive exception_raise requests.	2024-07-30 16:59:12 +02:00
hurdfault.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdfchdir.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdhost.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdid.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdinit.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdioctl.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdkill.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdlock.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdlock.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdlookup.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdmalloc.c	hurd: Fix static-PIE startup	2021-12-28 10:28:22 +01:00
hurdmalloc.h	hurdmalloc: Run fork handler as late as possible [BZ #19431]	2016-09-22 01:45:48 +02:00
hurdmsg.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdpid.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdports.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdprio.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdrlimit.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdselect.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdsig.c	hurd: Stop relying on VM_MAX_ADDRESS	2024-03-23 22:44:02 +01:00
hurdsock.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdsocket.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdstartup.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
hurdstartup.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
intern-fd.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
intr-msg.c	hurd: Fix restoring message to be retried	2024-07-13 17:05:13 +02:00
intr-rpc.defs	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
intr-rpc.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
longjmp-ts.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
lookup-at.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
lookup-retry.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
Makefile	hurd: Reformat Makefile.	2024-02-25 13:38:16 -05:00
msgportdemux.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
new-fd.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
Notes
openport.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
path-lookup.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
pid2task.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
port2fd.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
port-cleanup.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
ports-get.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
ports-set.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
preempt-sig.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
privports.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
report-wait.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
RPC_gsync_wait_intr.c	hurd: Add __lll_abstimed_wait_intr	2020-12-16 01:58:33 +01:00
set-hooks.h	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
set-host.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
setauth.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
seteuids.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
siginfo.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
sigunwind.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
stack_chk_fail_local.c	hurd: fix build with -fstack-protector-strong	2017-08-27 22:10:17 +02:00
task2pid.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
thread-cancel.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
thread-self.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
trampoline.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
Versions	hurd: Fix using interposable hurd_thread_self	2023-05-19 20:45:51 +02:00
vpprintf.c	Update copyright dates with scripts/update-copyrights	2024-01-01 10:53:40 -08:00
xattr.c	hurd: Fix getxattr/listxattr returning ERANGE	2024-06-10 22:01:40 +02:00