search for: prctl

...nl posix_fadvise helps to optimise linear reads and writes. >> dnl >> +dnl When /proc/sys/kernel/core_pattern starts with a pipe (|) symbol, Linux >> +dnl ignores "ulimit -c" and (equivalent) setrlimit(RLIMIT_CORE) actions, for >> +dnl disabling core dumping. Only prctl() can be used then, for that purpose. >> +dnl >> dnl strerrordesc_np (glibc only) is preferred over sys_errlist: >> dnl https://lists.fedoraproject.org/archives/list/glibc at lists.fedoraproject.org/thread/WJHGG2OO7ABNAYICGA5WQZ2Q34Q2FEHU/ >> AC_CHECK_FUNCS([\ >>...

...ps to optimise linear reads and writes. > >> dnl > >> +dnl When /proc/sys/kernel/core_pattern starts with a pipe (|) symbol, Linux > >> +dnl ignores "ulimit -c" and (equivalent) setrlimit(RLIMIT_CORE) actions, for > >> +dnl disabling core dumping. Only prctl() can be used then, for that purpose. > >> +dnl > >> dnl strerrordesc_np (glibc only) is preferred over sys_errlist: > >> dnl https://lists.fedoraproject.org/archives/list/glibc at lists.fedoraproject.org/thread/WJHGG2OO7ABNAYICGA5WQZ2Q34Q2FEHU/ > >> AC_CHECK_...

...r.c rsync-2.6.0/clientserver.c --- rsync-2.6.0.orig/clientserver.c 2003-09-10 23:00:19.000000000 -0500 +++ rsync-2.6.0/clientserver.c 2004-01-26 11:27:53.000000000 -0600 @@ -25,6 +25,18 @@ * rsyncd. **/ +#ifdef HAVE_LINUX_CAPS +#ifdef _POSIX_SOURCE +#undef _POSIX_SOURCE +#include <sys/prctl.h> +#include <sys/capability.h> +#define _POSIX_SOURCE +#else +#include <sys/prctl.h> +#include <sys/capability.h> +#endif +#endif + #include "rsync.h" extern int module_id; @@ -217,6 +229,10 @@ int start_glob=0; int ret; char *request=NULL; +#ifdef HAVE_LIN...

...will take precedence configure: WARNING: ## ------------------------------------------- ## configure: WARNING: ## Report this to openssh-unix- dev at mindrot.org ## configure: WARNING: ## ------------------------------------------- ## checking for sys/dir.h... yes checking sys/prctl.h usability... no checking sys/prctl.h presence... yes configure: WARNING: sys/prctl.h: present but cannot be compiled configure: WARNING: sys/prctl.h: check for missing prerequisite headers? configure: WARNING: sys/prctl.h: see the Autoconf documentation configure: WARNING: sys/prctl.h:...

...flag will result in a segmentation violation in the parent Any reason not to use it in platform_disable_tracing() ? diff --git a/configure.ac b/configure.ac index f5e1378..88c4633 100644 --- a/configure.ac +++ b/configure.ac @@ -405,6 +405,7 @@ AC_CHECK_HEADERS([ \ sys/poll.h \ sys/prctl.h \ sys/pstat.h \ + sys/ptrace.h \ sys/select.h \ sys/stat.h \ sys/stream.h \ diff --git a/platform-tracing.c b/platform-tracing.c index 81020e7..4c80a28 100644 --- a/platform-tracing.c +++ b/platform-tracing.c @@ -20,6 +20,9 @@ #if defined(HAVE_SYS_PRCTL_H) #include <sys/prctl.h> /...

Hello, I'm working on implementing hwasan instrumentation in GCC, and have just started discussing my current work-in-progress on the gcc-patches mailing list. (https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00387.html -- the email that Kostya saw and added people to). I've gotten about as basic a user-space implementation as possible (using the interceptor ABI) up and running, and would

At the risk of beating a dead horse, I'd like to see the chroot security checks relaxed a bit. On newer Linux kernels, there's a prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) that prevents privilege elevation (via setuid binaries, etc) for the caller and all of its descendants. That means that chroot(untrusted directory), prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0), setreuid(uid, uid), execve(a shell) is safe [1], even if the user can hardli...

Hello all, I am attempting to cross-compile Samba 3.0.24 for the ARM platform using on an Ubuntu Dapper box using arm-linux-gcc 3.4.0. I am using the following script to call configure: #!/bin/bash ac_cv_func_prctl=no linux_getgrouplist_ok=no ./configure --without-krb5 --without-ldap --without-ads --disable-cups --without-swat --prefix=/home/tropem/samba-build --host=arm-linux --build=i386-linux The console error is: checking for __open64... yes checking for creat64... yes checking for prctl... yes configur...

https://bugzilla.mindrot.org/show_bug.cgi?id=3639 Bug ID: 3639 Summary: server thread aborts during client login after receiving SSH2_MSG_KEXINIT Product: Portable OpenSSH Version: 9.2p1 Hardware: ARM OS: Linux Status: NEW Severity: critical Priority: P5 Component:

...didn't have sudo installed on Tru64 (now I do). Anyway, for the 3.9p1 release, all of them run except for a couple of problems: - agent-ptrace fails; it looks like setgid isn't enough to kill tracing under Tru64, and I can't find anything that looks like it will (like Linux's prctl). - reconfigure hangs; the script appears to get stuck in a loop. I tried turning on shell tracing; it looks like it is hanging when the script is called with "$TEST_SHELL -n $SCRIPT" to check it for errors. Using TEST_SHELL=/bin/ksh makes it work. -- Chris Adams <cmadams at...

With these patches, a majority of tests pass. The notable things which are still broken: - Because FreeBSD links /home -> /usr/home, $(pwd) gives a different result from realpath(2). Therefore some tests which implicitly rely on (eg) a plugin which calls nbdkit_realpath internally and then checking that path against $(pwd) fail. - Shebangs (#!) don't seem to work the same way

...* Copyright 2011 Google Inc. All Rights Reserved + * Author: mikew at google.com (Mike Waychison) + */ + +/* + * We have to include the klibc types.h here to keep the kernel's + * types.h from being used. + */ +#include <sys/types.h> + +#include <sys/capability.h> +#include <sys/prctl.h> +#include <sys/utsname.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "kinit.h" + +#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) + +#define MAKE_CAP(cap) [cap] = { .cap_nam...

...= 0 >> getegid() = 110 >> getgid() = 110 >> getegid() = 110 >> setgroups(1, [110]) = 0 >> setresuid(-1, 110, -1) = 0 >> prctl(PR_SET_DUMPABLE, 1) = 0 >> stat("/data/vmail/asom-net.dk/kptest", {st_mode=S_IFDIR|0700, >> st_size=4096, ...}) = 0 >> prctl(PR_SET_DUMPABLE, 1) = 0 >> setsockopt(12, SOL_TCP, TCP_CORK, [1], 4) = 0 >> write(12, "action=DUNNO\...

Hi, All, Currently we are using Samba 2.2 and planning to update to samba 3. However, I encountered the following error when I try to compile the samba-3.0.21c: ------------------------ ... Checking for creat64...yes Checking for prctl...yes Configure: error: cannot run test program while cross compiling See 'config.log' for more details. ------------------------ Would anyone with experience on cross compiling samba3 help me? Thanks in advance, Shunnian

...= 0 geteuid() = 0 getegid() = 110 getgid() = 110 getegid() = 110 setgroups(1, [110]) = 0 setresuid(-1, 110, -1) = 0 prctl(PR_SET_DUMPABLE, 1) = 0 stat("/data/vmail/asom-net.dk/kptest", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 prctl(PR_SET_DUMPABLE, 1) = 0 setsockopt(12, SOL_TCP, TCP_CORK, [1], 4) = 0 write(12, "action=DUNNO\n\n", 14) = 14 setsockopt(12, SOL_...

This is version 4 of the following sub-series: [libnbd PATCH v3 06/29] lib/utils: introduce xwrite() as a more robust write() [libnbd PATCH v3 07/29] lib/utils: add async-signal-safe assert() [libnbd PATCH v3 08/29] lib/utils: add unit test for async-signal-safe assert() http://mid.mail-archive.com/20230215141158.2426855-7-lersek at redhat.com

From the ChangeLog: - dtucker at cvs.openbsd.org 2007/06/25 12:02:27 [atomicio.c] Include <poll.h> like the man page says rather than <sys/poll.h>. ok djm@ This was probably ill-advised given the history of this header file. Some older systems, and some not-quite-XSI-compliant systems such as QNX Neutrino, still have <sys/poll.h> but not <poll.h>. I

...linux-ar CC=mipsel-hdhlan-linux-gcc \ LD=mipsel-hdhlan-linux-ld NM=mipsel-hdhlan-linux-nm \ OBJDUMP=mipsel-hdhlan-linux-objdump configure failed with this error message: checking for open64... yes checking for _open64... no checking for __open64... yes checking for creat64... yes checking for prctl... yes configure: error: cannot run test program while cross compiling See `config.log' for more details. In config.log I find the following error: configure:19052: checking for _open64 configure:19109: /usr/local/linkstation/gcc-3.4.4-glibc-2.3.5/mipsel-hdhlan-linux/bin/mipsel-hdhlan-linux-g...

...san_tag_mismatch_stub work for you? The first one has a non-standard ABI, but it can save register state at the point of the fault in the user code. > --- > As I understand it, when the mainline kernel gets patched to accept > tagged pointers in syscalls, the relaxed ABI will be behind a `prctl` > call rather than being generically turned on. I guess this means that > Android will eventually have the same requirement? > > If/when that happens, would the initial call to `prctl` be put in > libhwasan, or would something like that be done in Bionic? (n.b. this > call need...

...still need to modify capabilities within the program, even if I'm using an SE Linux policy? Thanks S Source file #include <stdio.h> #include <unistd.h> #include <errno.h> #include <string.h> #include <sys/socket.h> #include <sys/types.h> #include <sys/prctl.h> #include <netinet/in.h> int main(void) { int fd = socket(PF_INET, SOCK_RAW, IPPROTO_TCP); if (-1 == fd) { printf("Failed to open raw socket: %d=%s\n", errno, strerror(errno)); } else { printf("Socket opened successfully\n"); close(fd); } return 0; }...