** Changed in: mozjs24 (Ubuntu Yakkety)
Status: Triaged => Won't Fix
** Changed in: mozjs (Ubuntu Xenial)
Status: New => Won't Fix
** Changed in: mozjs (Ubuntu Yakkety)
Status: New => Won't Fix
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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1571017
Title:
[arm64] libmozjs24 crashes w/ 48-bit VA
Status in Spidermonkey Javascript engine:
Fix Released
Status in mozjs package in Ubuntu:
New
Status in mozjs24 package in Ubuntu:
Fix Released
Status in mozjs source package in Xenial:
Won't Fix
Status in mozjs24 source package in Xenial:
In Progress
Status in mozjs source package in Yakkety:
Won't Fix
Status in mozjs24 source package in Yakkety:
Won't Fix
Status in mozjs package in Debian:
Fix Released
Status in mozjs24 package in Debian:
Fix Released
Bug description:
[Impact]
libmozjs24 does not support 48-bit virtual addresses on arm64. 48-bit virtual
addresses are enabled in the Ubuntu 16.04 kernel (though not on the kernel used
on the buildds). This causes applications to crash.
[Test Case]
= mozjs =
$ sudo apt install couchdb-bin
$ couchjs a.js
Segmentation fault
= mozjs24 =
$ cat a.js
print("hello")
$ js24 a.js
Segmentation fault
[Regression Risk]
The fix for mozjs24 is ifdef'd to only apply to arm64. Since arm64 is
currently segfaulting with a very simple program, there's very little chance of
making things worse.
To manage notifications about this bug go to:
https://bugs.launchpad.net/mozjs/+bug/1571017/+subscriptions
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