Diffusion FreeBSD src repository - subversion rS349609

Control implicit PROT_MAX() using procctl(2) and the FreeBSD note
rS349609
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Description

Control implicit PROT_MAX() using procctl(2) and the FreeBSD note
feature bit.

In particular, allocate the bit to opt-out the image from implicit
PROTMAX enablement. Provide procctl(2) verbs to set and query
implicit PROTMAX handling. The knobs mimic the same per-image flag
and per-process controls for ASLR.

Reviewed by: emaste, markj (previous version)
Discussed with: brooks
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D20795

Details

Provenance

kib	Authored on

Reviewer

Differential Revision

D20795: Control implicit PROT_MAX() using proccontrol(1) and the FreeBSD note feature bit.

Parents

rS349608: Use traditional 'p' local to designate td->td_proc in kern_mmap.

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Event Timeline

kib committed rS349609: Control implicit PROT_MAX() using procctl(2) and the FreeBSD note.Jul 2 2019, 7:07 PM

kib added an edge: D20795: Control implicit PROT_MAX() using proccontrol(1) and the FreeBSD note feature bit..

Changes (8)

Path

Size

head/

lib/

libc/

sys/

sys/

compat/

freebsd32/

freebsd32_misc.c

kern/

sys/

vm/

rS349609

head/lib/libc/sys/procctl.2

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head/sys/compat/freebsd32/freebsd32_misc.c

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head/sys/kern/kern_procctl.c

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head/sys/sys/elf_common.h

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head/sys/sys/proc.h

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head/sys/sys/procctl.h

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head/sys/sys/syscallsubr.h

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head/sys/vm/vm_mmap.c

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