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Kevin Darbyshire-Bryant 7765e442d0 basefiles: allow suid coredumps ... Set sysctl fs.suid_dumpable = 2 This allows suid processes to dump core according to kernel.core_pattern setting. LEDE typically uses suid to drop root priviledge rather than gain it but without this setting any suid process would be unable to produce coredumps (e.g. dnsmasq) Processes still need to set a non zero core file process limit ('ulimit -c unlimited' or if procd used 'procd_set_param limits core="unlimited"') in order to produce a core. This setting removes an obscure stumbling block along the way. >From https://www.kernel.org/doc/Documentation/sysctl/fs.txt suid_dumpable: This value can be used to query and set the core dump mode for setuid or otherwise protected/tainted binaries. The modes are 0 - (default) - traditional behaviour. Any process which has changed privilege levels or is execute only will not be dumped. 1 - (debug) - all processes dump core when possible. The core dump is owned by the current user and no security is applied. This is intended for system debugging situations only. Ptrace is unchecked. This is insecure as it allows regular users to examine the memory contents of privileged processes. 2 - (suidsafe) - any binary which normally would not be dumped is dumped anyway, but only if the "core_pattern" kernel sysctl is set to either a pipe handler or a fully qualified path. (For more details on this limitation, see CVE-2006-2451.) This mode is appropriate when administrators are attempting to debug problems in a normal environment, and either have a core dump pipe handler that knows to treat privileged core dumps with care, or specific directory defined for catching core dumps. If a core dump happens without a pipe handler or fully qualifid path, a message will be emitted to syslog warning about the lack of a correct setting. Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [PKG_RELEASE increase]		7 years ago
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board.d	…
hotplug.d/net	…
init.d	…
iproute2	base-files: add /etc/iproute2/rt_protos	8 years ago
rc.button	…
sysctl.d	…
uci-defaults	base-files: fix user creation on sysupgrade with few opkg control files	8 years ago
banner	…
banner.failsafe	…
device_info	…
diag.sh	…
fstab	…
group	base-files: add "tty" user group	7 years ago
hosts	…
inittab	…
openwrt_release	base-files: add ARCH_PACKAGES to openwrt_release and os-release	8 years ago
openwrt_version	…
os-release	…
passwd	…
preinit	…
profile	…
protocols	…
rc.common	base-files: fix default procd reload	7 years ago
rc.local	…
services	base-files: add submission service port	8 years ago
shadow	…
shells	…
sysctl.conf	basefiles: allow suid coredumps	7 years ago
sysupgrade.conf	…