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To: pf@FreeBSD.org
Subject: [Bug 258601] kernel panic/pagefault caused by pfctl -s info
Date: Thu, 23 Sep 2021 19:58:36 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D258601
--- Comment #12 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=3Dcb13059663e455b3fc69c293dadec53c1=
64490dc
commit cb13059663e455b3fc69c293dadec53c164490dc
Author: Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2021-09-23 08:39:49 +0000
Commit: Kristof Provost <kp@FreeBSD.org>
CommitDate: 2021-09-23 19:56:59 +0000
pf: fix pagefault in pf_getstatus()
We can't copyout() while holding a lock, in case it triggers a page
fault.
Release the lock before copyout, which is safe because we've already
copied all the data into the nvlist.
PR: 258601
Reviewed by: mjg
MFC after: 1 week
Sponsored by: Modirum MDPay
Differential Revision: https://reviews.freebsd.org/D32076
sys/netpfil/pf/pf_ioctl.c | 3 +++
1 file changed, 3 insertions(+)
--=20
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