git: kernel - Fix kernel crash in sysctl path
Matthew Dillon
dillon at crater.dragonflybsd.org
Wed May 19 11:20:36 PDT 2021
commit a23ed7f524eb73f2bf9b81db08b87f033b94e6d3
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Wed May 19 11:05:20 2021 -0700
kernel - Fix kernel crash in sysctl path
* Fix a kernel crash which can occur in a particular sysctl due to some
processes not having a p_textnch path. The sysctl code was assuming that
p->p_textnch would always be valid. procfs already has the added check.
* Fix a race against exit, requiring the proc->p_token to be held.
Reported-by: htop devs, BenBE, cgzones
Summary of changes:
sys/kern/kern_proc.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a23ed7f524eb73f2bf9b81db08b87f033b94e6d3
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