On Thu, 2016-12-29 at 09:42 -0800, Rick Stevens wrote: > On 12/29/2016 04:03 AM, Patrick O'Callaghan wrote: > > On Thu, 2016-12-29 at 01:52 +0200, Alchemist wrote: > > > 2016-12-28 14:44 GMT+02:00 Patrick O'Callaghan <pocallaghan@xxxxxxxxx>: > > > > > > > On Tue, 2016-12-27 at 21:17 +0200, Alchemist wrote: > > > > > 2016-12-27 21:00 GMT+02:00 Patrick O'Callaghan <pocallaghan@xxxxxxxxx>: > > > > > > > > > > > On Tue, 2016-12-27 at 08:48 -0500, Tom Horsley wrote: > > > > > > > On Tue, 27 Dec 2016 13:35:09 +0000 > > > > > > > Patrick O'Callaghan wrote: > > > > > > > > > > > > > > > b) can be turned off? > > > > > > > > > > > > > > Edit grub.cfg and put audit=0 on the kernel command line. > > > > > > > Disable the auditd service. > > > > > > > No more audit messages from anything :-). > > > > > > > > > > > > Wasn't really the question. I want to know what it's telling me before > > > > > > I decide whether to turn it off. > > > > > > > > > > > > > > > > > > > > > > > > > > > > http://billauer.co.il/blog/2015/08/linux-google-chrome-aw-snap-seccomp/ > > > > > > > > Thanks, I had used ausearch to confirm these are SECCOMP errors, i.e. > > > > problems with Chrome sandboxing (which apparently have been around for > > > > a long time). However the URL above recommends just running Chrome > > > > without the sandbox, which a) isn't a solution and b) is no longer > > > > supported. > > > > > > > > Now that I know what it is, I can just ignore the audit errors. > > > > > > > > > > > > > > Yes, or you may add something like > > > > > > -a exclude,always -F msgtype=1326 > > > or > > > -a exclude,always -F exe=/opt/google/chrome/chrome > > > > > > to /etc/audit/audit.rules > > > systemctl restart auditd > > > > systemctl doesn't work for this. You have to run "service restart auditd" > > > > > see man auditctl > > > > > > Because depending on Your Chrome usage, it could flood logs and make > > > difficult to search something truly important. > > > > I've tried the second version (excluding the executable) but I'm still getting floods of audit messages: > > > > $ sudo auditctl exclude exe="/opt/google/chrome/chrome" > > $ journal -e > > Dec 29 11:53:42 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:53:42 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:53:51 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:53:51 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:00 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:00 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:09 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:09 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:20 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:20 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:27 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:27 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > Dec 29 11:54:39 bree audit[4208]: SECCOMP auid=1000 uid=1000 gid=1000 ses=3 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=4208 comm="chrome" exe="/opt/google/chrome/chrome" sig=0 arch=c000003e syscall=2 compat=0 ip=0x7f6 > > > > etc. etc. > > > > The audit documentation is not helpful. Any ideas? > > Have you tried > > # semanage boolean --on unconfined_chrome_sandbox_transition > > which "allows unconfined to chrome sandbox transition". I have it set on > my machine and I don't get those alerts. YMMV Doesn't explain why the auditctl line doesn't work but I'll give it a go anyway. So where is semanage? Turns out it's hidden in policycoreutils-python- utils (bash found it where I couldn't). It's certainly well hidden. So: # semanage boolean --on unconfined_chrome_sandbox_transition Usage: semanage boolean [-h] [-n] [-N] [-S STORE] [ --extract | --deleteall | --list -C | --modify ( --on | --off ) boolean ] Also: # semanage boolean -l|grep unconfined_chrome_sandbox_transition unconfined_chrome_sandbox_transition (on , on) Allow unconfined to chrome sandbox transition Which seems to indicate that the boolean is already set, but the audit flood continues. poc _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
