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rtld: Check __libc_enable_secure before honoring LD_PREFER_MAP_32BIT_EXEC (CVE-2019... release/2.23/master
authorMarcin Kościelnicki <mwk@0x04.net>
Wed, 20 Nov 2019 23:20:15 +0000 (00:20 +0100)
committerFlorian Weimer <fweimer@redhat.com>
Fri, 22 Nov 2019 13:09:58 +0000 (14:09 +0100)
commitb039fd85db0717aca309b61925d00a5a6547a649
tree0d2e5bb4a86694aa15af4e0fe4604e587982bdfbtree | snapshot
parent8337b12d0b80b0f26ec88156b8dd4972a9cb34c3commit | diff
rtld: Check __libc_enable_secure before honoring LD_PREFER_MAP_32BIT_EXEC (CVE-2019-19126) [BZ #25204]

The problem was introduced in glibc 2.23, in commit
b9eb92ab05204df772eb4929eccd018637c9f3e9
("Add Prefer_MAP_32BIT_EXEC to map executable pages with MAP_32BIT").

(cherry picked from commit d5dfad4326fc683c813df1e37bbf5cf920591c8e)
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sysdeps/unix/sysv/linux/x86_64/64/dl-librecon.h diff | blob | blame | history
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