[Bug 217435] Users can panic the kernel by tracing kevents with unusual arguments.

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Mar 18 03:50:56 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217435

--- Comment #3 from commit-hook at freebsd.org ---
A commit references this bug:

Author: kib
Date: Sat Mar 18 03:49:50 UTC 2017
New revision: 315470
URL: https://svnweb.freebsd.org/changeset/base/315470

Log:
  MFC r315155:
  Ktracing kevent(2) calls with unusual arguments might leads to an
  overly large allocation requests.

  PR:   217435

  MFC r315237:
  Hide kev_iovlen() definition under #ifdef KTRACE.

Changes:
_U  stable/11/
  stable/11/sys/kern/kern_event.c
  stable/11/sys/kern/kern_ktrace.c
  stable/11/sys/sys/ktrace.h

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