Diffusion FreeBSD src repository 5cc1d199412e

realtimer_expire: avoid proc lock recursion when called from…
5cc1d199412e
Actions

Description

realtimer_expire: avoid proc lock recursion when called from itimer_proc_continue()

It is fine to drop the process lock there, process cannot exit until its
timers are cleared.

Found by: syzkaller
Reported and reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D29746

Details

Provenance

kib	Authored on Apr 13 2021, 1:47 PM

Differential Revision

D29746: realtimer_expire: avoid proc lock recursion when called from itimer_proc_continue()

Parents

rG5edf7227ec33: pseudofs: limit writes to 1M

Branches

Unknown

Tags

Unknown

Event Timeline

kib committed rG5cc1d199412e: realtimer_expire: avoid proc lock recursion when called from… (authored by kib).Apr 14 2021, 7:53 AM

kib added an edge: D29746: realtimer_expire: avoid proc lock recursion when called from itimer_proc_continue().Apr 14 2021, 7:59 AM

kib mentioned this in rGc35473f4ab3a: realtimer_expire: avoid proc lock recursion when called from….Apr 23 2021, 11:17 AM

Changes (1)

Path

Size

sys/

kern/

kern_time.c

rG5cc1d199412e

View Options