many seccomp denials for set_robust_list in xenial

Bug #1570111 reported by Jamie Strandboge on 2016-04-13
This bug affects 1 person
Affects Status Importance Assigned to Milestone
chromium-browser (Ubuntu)

Bug Description

I have 517 messages and counting like this:
kernel: [ 2899.006553] audit: type=1326 audit(1460584187.442:1256): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=18839 comm="chromium-browse" exe="/usr/lib/chromium-browser/chromium-browser" sig=0 arch=c000003e syscall=273 compat=0 ip=0x7fa52f21a694 code=0x50000

$ scmp_sys_resolver 273

It seems that chromium's seccomp sandbox needs to enable this call or chromium adjusted to not use it.

$ cat /proc/version_signature
Ubuntu 4.4.0-18.34-generic 4.4.6

$ apt-cache policy chromium-browser
$ apt-cache policy chromium-browser
  Installed: 49.0.2623.108-0ubuntu1.1233
  Candidate: 49.0.2623.108-0ubuntu1.1233
  Version table:
 *** 49.0.2623.108-0ubuntu1.1233 500
        500 xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

Chad Miller (cmiller) on 2016-04-13
Changed in chromium-browser (Ubuntu):
assignee: nobody → Chad Miller (cmiller)
status: New → Confirmed
Chad Miller (cmiller) wrote :

Oh hello, libc.

Catchpoint 1 (call to syscall set_robust_list), __pthread_initialize_minimal_internal () at nptl-init.c:384
(gdb) bt
#0 __pthread_initialize_minimal_internal () at nptl-init.c:384
#1 0x00007f2b878845d1 in _init () at ../sysdeps/x86_64/crti.S:72

    int res = INTERNAL_SYSCALL (set_robust_list, err, 2, &pd->robust_head,
                sizeof (struct robust_list_head));

Changed in chromium-browser (Ubuntu):
status: Confirmed → In Progress
importance: Undecided → Medium
Olivier Tilloy (osomon) on 2018-03-09
Changed in chromium-browser (Ubuntu):
assignee: Chad Miller (cmiller) → nobody
status: In Progress → Confirmed
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