Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Taehee Yoo 8aa13a8696 net: validate lwtstate->data before returning from skb_tunnel_info() ... commit 67a9c94317402b826fc3db32afc8f39336803d97 upstream. skb_tunnel_info() returns pointer of lwtstate->data as ip_tunnel_info type without validation. lwtstate->data can have various types such as mpls_iptunnel_encap, etc and these are not compatible. So skb_tunnel_info() should validate before returning that pointer. Splat looks like: BUG: KASAN: slab-out-of-bounds in vxlan_get_route+0x418/0x4b0 [vxlan] Read of size 2 at addr ffff888106ec2698 by task ping/811 CPU: 1 PID: 811 Comm: ping Not tainted 5.13.0+ #1195 Call Trace: dump_stack_lvl+0x56/0x7b print_address_description.constprop.8.cold.13+0x13/0x2ee ? vxlan_get_route+0x418/0x4b0 [vxlan] ? vxlan_get_route+0x418/0x4b0 [vxlan] kasan_report.cold.14+0x83/0xdf ? vxlan_get_route+0x418/0x4b0 [vxlan] vxlan_get_route+0x418/0x4b0 [vxlan] [ ... ] vxlan_xmit_one+0x148b/0x32b0 [vxlan] [ ... ] vxlan_xmit+0x25c5/0x4780 [vxlan] [ ... ] dev_hard_start_xmit+0x1ae/0x6e0 __dev_queue_xmit+0x1f39/0x31a0 [ ... ] neigh_xmit+0x2f9/0x940 mpls_xmit+0x911/0x1600 [mpls_iptunnel] lwtunnel_xmit+0x18f/0x450 ip_finish_output2+0x867/0x2040 [ ... ] Fixes: 61adedf3e3 ("route: move lwtunnel state to dst_entry") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-07-25 14:35:15 +02:00
..
acpi
asm-generic	vmlinux.lds.h: Avoid orphan section with !SMP	2021-06-16 11:59:44 +02:00
clocksource
crypto	crypto: shash - avoid comparing pointers to exported functions under CFI	2021-07-14 16:53:13 +02:00
drm
dt-bindings
keys	certs: Add EFI_CERT_X509_GUID support for dbx entries	2021-06-30 08:47:55 -04:00
kvm
linux	x86/signal: Detect and prevent an alternate signal stack overflow	2021-07-20 16:10:49 +02:00
math-emu
media	media: subdev: disallow ioctl for saa6588/davinci	2021-07-19 08:53:17 +02:00
misc
net	net: validate lwtstate->data before returning from skb_tunnel_info()	2021-07-25 14:35:15 +02:00
pcmcia
ras
rdma
scsi	scsi: iscsi: Fix conn use after free during resets	2021-07-20 16:10:43 +02:00
soc
sound
target
trace
uapi	net: fix mistake path for netdev_features_strings	2021-07-19 08:53:11 +02:00
vdso
video
xen