Diffusion FreeBSD src repository 55be6be12cd9

vm_map_protect(): handle stack protection stored in the stack guard
55be6be12cd9
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Description

vm_map_protect(): handle stack protection stored in the stack guard

mprotect(2) on the stack region needs to adjust guard stored protection,
so that e.g. enable executing on stack worked properly on stack growth.

Reported by: dchagin
Reviewed by: alc, markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D41099

Details

Provenance

kib	Authored on Jul 25 2023, 1:32 PM

Reviewer

alc

Differential Revision

D41099: More fixes for stacks

Parents

rG79169929f04d: vm_map_protect(): move guard handling at the last phase into an empty dedicated…

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Event Timeline

kib committed rG55be6be12cd9: vm_map_protect(): handle stack protection stored in the stack guard (authored by kib).Aug 12 2023, 6:28 AM

kib added an edge: D41099: More fixes for stacks.Aug 12 2023, 6:30 AM

kib mentioned this in rGbd7afd9e50b3: vm_map_protect(): handle stack protection stored in the stack guard.Aug 25 2023, 1:09 AM

Changes (1)

Path

Size

sys/

vm/

vm_map.c

rG55be6be12cd9

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