Bug 177387 – using app-emulation/qemu with app-emulation/kqemu resulting a GPF on hardened-sources and enabled PAX_KERNEXEC

• Status: RESOLVED TEST-REQUEST
• Product: Gentoo Linux

[Description Yaroslav Isakov 2007-05-06 23:54:33 UTC]

I launch qemu-0.9.0 with modprobe'd kqemu-1.3.0-pre11 and it crashed with this message in syslog:
PAX: suspicious general protection fault: 0000 [#1]
When I disable PAX_KERNEXEC in hardened-sources-2.6.20-r2, it works as intended (no crashes)

[Comment 1 Yaroslav Isakov 2007-05-06 23:56:11 UTC]

Created attachment 118390 [details]
emerge --info output

BTW, I use gcc-3.4.6-r2 to compile qemu-user and qemu-softmmu

[Comment 2 Yaroslav Isakov 2007-05-06 23:57:46 UTC]

Created attachment 118392 [details]
excerpt from syslog with error

[Comment 3 Kevin F. Quinn (RETIRED) 2007-05-07 11:21:24 UTC]

*** This bug has been marked as a duplicate of bug 177234 ***

[Comment 4 PaX Team 2007-05-07 23:05:43 UTC]

(In reply to comment #3)
> 
> *** This bug has been marked as a duplicate of bug 177234 ***

i think it's a genuine issue, the other bug is related to grsecurity itself, not PaX, while here we're seeing something triggered by KERNEXEC. what i'd like to see is a decoded oops however.

[Comment 5 solar (RETIRED) 2007-05-07 23:13:04 UTC]

Reopening bug

[Comment 6 Luca Barbato 2009-03-07 15:47:43 UTC]

Please check the new release.