libvirt / libvirt (master)
Build #531 has errored.
9 minutes and 40 seconds
Laine Stump 17825e8 Changeset →
  util: Fix stack smashing in virNetDevGetFamilyId

After commit 8708ca01c0d libvirtd consistently aborts with "stack
smashing detected" when nodedev driver is initialized.

This is caused by nlmsg_parse() being told that its array of nlattr*
has CTRL_CMD_MAX (10) entries, when in fact it is declared to have
CTRL_ATTR_MAX (8) entries. Since all the entries are initialized to
NULL, the result is that nlmsg_parse is overwriting 2*(sizof(nlattr*))
bytes outside the array.

Signed-off-by: Laine Stump <laine@laine.org>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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