The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface.
[
{
"product": "Linux kernel through 4.11.1",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Linux kernel through 4.11.1"
}
]
}
]
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ee0d8d8482345ff97a75a7d747efc309f13b0d80
www.debian.org/security/2017/dsa-3886
www.securityfocus.com/bid/98439
www.securitytracker.com/id/1039237
bugzilla.redhat.com/show_bug.cgi?id=1447734
github.com/torvalds/linux/commit/ee0d8d8482345ff97a75a7d747efc309f13b0d80
patchwork.ozlabs.org/patch/757549/
source.android.com/security/bulletin/2017-09-01