[Webkit-unassigned] [Bug 35154] New: JavaScript JIT incompatible with SELinux (execmem)
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Feb 19 06:25:30 PST 2010
https://bugs.webkit.org/show_bug.cgi?id=35154
Summary: JavaScript JIT incompatible with SELinux (execmem)
Product: WebKit
Version: 417.x
Platform: PC
OS/Version: Linux
Status: UNCONFIRMED
Severity: Normal
Priority: P2
Component: JavaScriptCore
AssignedTo: webkit-unassigned at lists.webkit.org
ReportedBy: jreznik at redhat.com
JavaScript JIT causes crash while SELinux in enforcing mode is involved.
Dec 23 09:09:38 htpc kernel: plasma-netbook[4493]: segfault at bbadbeef ip
0621a5c0 sp bf8f4b20 error 6 in libQtWebKit.so.4.6.0[5fcb000+1090000]
Dec 23 09:09:38 htpc kernel: Process 4493(plasma-netbook) has RLIMIT_CORE set
to 0
Dec 23 09:09:38 htpc kernel: Aborting core
Dec 23 09:09:45 htpc setroubleshoot: SELinux is preventing
/usr/bin/plasma-netbook "execmem" access on <Unknown>. For complete SELinux
messages. run sealert -l 94d4513e-7637-4087-9039-4340e3c4b452
Dec 23 09:09:48 htpc setroubleshoot: SELinux is preventing
/usr/bin/plasma-netbook "execmem" access on <Unknown>. For complete SELinux
messages. run sealert -l 94d4513e-7637-4087-9039-4340e3c4b452
See recent Fedora bugs for more information:
https://bugzilla.redhat.com/show_bug.cgi?id=549994
https://bugzilla.redhat.com/show_bug.cgi?id=527079
https://bugzilla.redhat.com/show_bug.cgi?id=516057
Currently we ship QtWebKit with JIT disabled as workaround. Can someone guess
performance impact? Or any possibility to find fix in trac?
I've found this https://bugs.webkit.org/show_bug.cgi?id=22033 bug ([GTK]
CTI/Linux
r38064 crashes; JIT requires executable memory) that could be related to this
issue.
Version: QtWebKit as found in Qt 4.6.0 (but it affects WebKitGtk too -
JIT is disabled in Fedora package too).
Thanks.
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