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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - there is an exploitable page fault that can be reliably triggered from the chromium sandbox can possibly lead to remote attackers causing a denial of service condition or possibly running system code."
href="https://bugs.freedesktop.org/show_bug.cgi?id=103689#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - there is an exploitable page fault that can be reliably triggered from the chromium sandbox can possibly lead to remote attackers causing a denial of service condition or possibly running system code."
href="https://bugs.freedesktop.org/show_bug.cgi?id=103689">bug 103689</a>
from <span class="vcard"><a class="email" href="mailto:pierre.morrow@free.fr" title="Pierre Moreau <pierre.morrow@free.fr>"> <span class="fn">Pierre Moreau</span></a>
</span></b>
<pre>Which kernel version does your Ubuntu installation have? And with which GPU was
it?
I tried opening that page on my computer with Chromium, but it didn’t trigger a
page fault. This is what I got instead:
[Nov12 12:40] nouveau 0000:04:00.0: Xorg[394]: fail ttm_validate
[ +0.000006] nouveau 0000:04:00.0: Xorg[394]: validating bo list
[ +0.000006] nouveau 0000:04:00.0: Xorg[394]: validate: -12
[ +1.124277] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000014] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
[ +5.515843] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000016] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
[Nov12 12:41] nouveau 0000:04:00.0: Xorg[394]: fail ttm_validate
[ +0.000005] nouveau 0000:04:00.0: Xorg[394]: validating bo list
[ +0.000005] nouveau 0000:04:00.0: Xorg[394]: validate: -12
[Nov12 12:42] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000010] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
[Nov12 12:43] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000009] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
[ +1.273289] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000015] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
[ +0.455464] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000013] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
[ +0.518625] nouveau 0000:04:00.0: gr: TRAP ch 10 [007fa04000 Xorg[394]]
[ +0.000014] nouveau 0000:04:00.0: gr: SHADER a244020e, sph: 0x44020e,
stage: 0x22
GPU: GM206
Kernel: 4.13.12
Xorg: 1.19.5</pre>
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