iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
e55449e71a
linux/net/core
History
David Ahern e55449e71a ipv6: Initialize fib6_result in bpf_ipv6_fib_lookup 
fib6_result is not initialized in bpf_ipv6_fib_lookup and potentially
passses garbage to the fib lookup which triggers a KASAN warning:

[  262.055450] ==================================================================
[  262.057640] BUG: KASAN: user-memory-access in fib6_rule_suppress+0x4b/0xce
[  262.059488] Read of size 8 at addr 00000a20000000b0 by task swapper/1/0
[  262.061238]
[  262.061673] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.1.0-rc5+ 
[  262.063493] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014
[  262.065593] Call Trace:
[  262.066277]  <IRQ>
[  262.066848]  dump_stack+0x7e/0xbb
[  262.067764]  kasan_report+0x18b/0x1b5
[  262.069921]  __asan_load8+0x7f/0x81
[  262.070879]  fib6_rule_suppress+0x4b/0xce
[  262.071980]  fib_rules_lookup+0x275/0x2cd
[  262.073090]  fib6_lookup+0x119/0x218
[  262.076457]  bpf_ipv6_fib_lookup+0x39d/0x664
...

Initialize fib6_result to 0.

Fixes: b1d40991506aa ("ipv6: Rename fib6_multipath_select and pass fib6_result")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26 11:32:00 -04:00
..
datagram.c
datagram: remove rendundant 'peeked' argument
2019-04-08 09:51:54 -07:00
datagram.h
net/core: Allow the compiler to verify declaration and definition consistency
2019-03-27 13:49:44 -07:00
dev_addr_lists.c
net: dev: Issue NETDEV_PRE_CHANGEADDR
2018-12-13 18:41:38 -08:00
dev_ioctl.c
net/core: Document all dev_ioctl() arguments
2019-03-27 13:49:43 -07:00
dev.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-17 11:26:25 -07:00
devlink.c
net: devlink: Add extack to shared buffer operations
2019-04-22 22:09:32 -07:00
drop_monitor.c
…
dst_cache.c
…
dst.c
net: dst: remove gc leftovers
2019-03-21 13:39:25 -07:00
ethtool.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-05 14:14:19 -07:00
failover.c
failover: allow name change on IFF_UP slave interfaces
2019-04-10 22:12:26 -07:00
fib_notifier.c
…
fib_rules.c
net/fib_rules: Update fib_nl_dumprule for strict data checking
2018-10-08 10:39:05 -07:00
filter.c
ipv6: Initialize fib6_result in bpf_ipv6_fib_lookup
2019-04-26 11:32:00 -04:00
flow_dissector.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-05 14:14:19 -07:00
flow_offload.c
flow_offload: add flow action infrastructure
2019-02-06 10:38:25 -08:00
gen_estimator.c
net: core: protect rate estimator statistics pointer with lock
2018-08-11 12:37:10 -07:00
gen_stats.c
Revert: "net: sched: put back q.qlen into a single location"
2019-04-10 12:20:46 -07:00
gro_cells.c
gro_cells: make sure device is up in gro_cells_receive()
2019-03-10 11:07:14 -07:00
hwbm.c
…
link_watch.c
net: linkwatch: add check for netdevice being present to linkwatch_do_dev
2018-09-19 21:06:46 -07:00
lwt_bpf.c
ipv6: Move ipv6 stubs to a separate header file
2019-03-29 10:53:45 -07:00
lwtunnel.c
lwtunnel: Pass encap and encap type attributes to lwtunnel_fill_encap
2019-04-23 19:42:29 -07:00
Makefile
flow_offload: add flow_rule and flow_match structures and use them
2019-02-06 10:38:25 -08:00
neighbour.c
net ipv6: Prevent neighbor add if protocol is disabled on device
2019-04-17 23:19:07 -07:00
net_namespace.c
netns: read NETNSA_NSID as s32 attribute in rtnl_net_getid()
2019-04-11 11:26:27 -07:00
net-procfs.c
…
net-sysfs.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-17 11:26:25 -07:00
net-sysfs.h
…
net-traces.c
trace: events: add a few neigh tracepoints
2019-02-17 10:33:39 -08:00
netclassid_cgroup.c
cgroup, netclassid: add a preemption point to write_classid
2018-10-23 12:58:17 -07:00
netevent.c
…
netpoll.c
net: dev: rename queue selection helpers.
2019-03-20 11:18:54 -07:00
netprio_cgroup.c
cgroup: net: remove left over MODULE_LICENSE tag
2019-04-22 21:50:54 -07:00
page_pool.c
page_pool: use DMA_ATTR_SKIP_CPU_SYNC for DMA mappings
2019-02-13 22:00:16 -08:00
pktgen.c
mm: replace all open encodings for NUMA_NO_NODE
2019-03-05 21:07:14 -08:00
ptp_classifier.c
net/core: work around section mismatch warning for ptp_classifier
2019-04-16 20:46:17 -07:00
request_sock.c
…
rtnetlink.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-04-17 11:26:25 -07:00
scm.c
socket: Add SO_TIMESTAMPING_NEW
2019-02-03 11:17:31 -08:00
secure_seq.c
…
skbuff.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2019-04-22 21:35:55 -07:00
skmsg.c
bpf: Stop the psock parser before canceling its work
2019-03-07 15:16:20 +01:00
sock_diag.c
net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
2018-08-14 10:01:24 -07:00
sock_map.c
bpf: skmsg, fix psock create on existing kcm/tls port
2018-10-20 00:40:45 +02:00
sock_reuseport.c
net/core: Document reuseport_add_sock() bind_inany argument
2019-03-27 13:49:43 -07:00
sock.c
net: fix sparc64 compilation of sock_gettstamp
2019-04-23 18:35:17 -07:00
stream.c
tcp: reduce POLLOUT events caused by TCP_NOTSENT_LOWAT
2018-12-04 21:21:18 -08:00
sysctl_net_core.c
net: convert rps_needed and rfs_needed to new static branch api
2019-03-23 21:57:38 -04:00
timestamping.c
…
tso.c
…
utils.c
…
xdp.c
xdp: remove redundant variable 'headroom'
2018-09-01 01:35:53 +02:00