See:
https://man7.org/linux/man-pages/man2/close_range.2.html
Note: 'man close_range' documents 'flags' as unsigned int,
while glibc unistd.h as just 'int'. Picking 'int' to match glibc,
though it probably doesn't matter.
BYPASS_INCLUSIVE_LANGUAGE_REASON=man is a cli command
Test: TreeHugger
Bug: 229913920
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I1e2d1c8edc2ea28922d60f3ce3e534a784622cd1
We've had complaints about ubsan issues for years, but never got to the
bottom of them, or saw them ourselves in testing. For some reason (still
not understood) we've started to see this ourselves in T and downstream
branches. So for now, let's just punch that extra hole.
Longer term, ubsan should stop needing any of this, so once
https://reviews.llvm.org/D124212 is in an LTS NDK, we should be able to
get rid of this _and_ the existing sanitizer-related holes.
Bug: https://github.com/android/ndk/issues/1298
Bug: http://b/229989971
Test: treehugger
Change-Id: Id42cb29c4e943c0080c0d34ce4e5d6d1b32da9e8
Linux kernel's close_range() system call (currently) allows:
close() unshare() fcntl(F_SETFD, FD_CLOEXEC)
to be performed on ranges of fds.
All 3 of these are already allowed by seccomp bpf:
as such this doesn't allow you to do anything you can't already do.
We can't add close_range() properly to bionic because we'd need to
fiddle about with ltp and it's too late to add new T API anyway,
so let's just make the direct syscall() call.
We'll add proper support in U.
See also:
https://man7.org/linux/man-pages/man2/close_range.2.html
Test: TreeHugger
Bug: 229913920
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I85586d544fc23bed6aee59f00bdb79ee7a8150d1
Enable userfaultfd syscall to be used by ART-GC.
Bug: 160737021
Test: manually tested by invoking userfaultfd syscall in ART
Change-Id: I9f98402a96bb8363a1e5fa49dbadbb37dc70d561
blacklist and whitelist are replaced with blocklist and allowlist
respectively.
Test: CtsSeccompHostTestCases
Change-Id: I39d9eda89038d1addbdaed59284a254a34cea1c6
Treehugger Robot
Maciej Żenczykowski
Elliott Hughes
Lokesh Gidra
Josh Gao
Victor Hsieh