Date: Fri, 18 Dec 2020 23:17:24 +0000 From: bugzilla-noreply@freebsd.org To: gecko@FreeBSD.org Subject: [Bug 239873] www/firefox and mail/thunderbird don't like the new ASLR "stackgap" feature Message-ID: <bug-239873-21738-KeXDO8knsa@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-239873-21738@https.bugs.freebsd.org/bugzilla/> References: <bug-239873-21738@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239873 Konstantin Belousov <kib@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kib@FreeBSD.org --- Comment #5 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to sigsys from comment #3) These are different stack gaps. One that is controlled by STKFGAP_DISABLE = is at the bottom of the stacks and prevent stack overflow from stomping on the nearby mappings. ASLR stack gap is at top, and it only makes an impression of being useful. I just added an ELF feature control bit to disable it. I considered adding procctl(2) but decided that it is not very useful, ELF flag should be enough. --=20 You are receiving this mail because: You are the assignee for the bug.=
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