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An out of bounds error was detected on an ARM64 target with
Android based kernel 4.9. This occurs while trying to
restore mark on a skb from an inet request socket.
BUG: KASAN: slab-out-of-bounds in socket_match.isra.2+0xc8/0x1f0 net/netfilter/xt_socket.c:248
Read of size 4 at addr ffffffc06a8d824c by task syz-fuzzer/1532
CPU: 7 PID: 1532 Comm: syz-fuzzer Tainted: G W O 4.9.41+ #1
Call trace:
[<ffffff900808d2f8>] dump_backtrace+0x0/0x440 arch/arm64/kernel/traps.c:76
[<ffffff900808d760>] show_stack+0x28/0x38 arch/arm64/kernel/traps.c:226
[<ffffff90085f7dc8>] __dump_stack lib/dump_stack.c:15 [inline]
[<ffffff90085f7dc8>] dump_stack+0xe4/0x134 lib/dump_stack.c:51
[<ffffff900830f358>] print_address_description+0x68/0x258 mm/kasan/report.c:248
[<ffffff900830f770>] kasan_report_error mm/kasan/report.c:347 [inline]
[<ffffff900830f770>] kasan_report.part.2+0x228/0x2f0 mm/kasan/report.c:371
[<ffffff900830fdec>] kasan_report+0x5c/0x70 mm/kasan/report.c:372
[<ffffff900830de98>] check_memory_region_inline mm/kasan/kasan.c:308 [inline]
[<ffffff900830de98>] __asan_load4+0x88/0xa0 mm/kasan/kasan.c:740
[<ffffff90097498f8>] socket_match.isra.2+0xc8/0x1f0 net/netfilter/xt_socket.c:248
[<ffffff9009749a5c>] socket_mt4_v1_v2_v3+0x3c/0x48 net/netfilter/xt_socket.c:272
[<ffffff90097f7e4c>] ipt_do_table+0x54c/0xad8 net/ipv4/netfilter/ip_tables.c:311
[<ffffff90097fcf14>] iptable_mangle_hook+0x6c/0x220 net/ipv4/netfilter/iptable_mangle.c:90
...
Allocated by task 1532:
save_stack_trace_tsk+0x0/0x2a0 arch/arm64/kernel/stacktrace.c:131
save_stack_trace+0x28/0x38 arch/arm64/kernel/stacktrace.c:215
save_stack mm/kasan/kasan.c:495 [inline]
set_track mm/kasan/kasan.c:507 [inline]
kasan_kmalloc+0xd8/0x188 mm/kasan/kasan.c:599
kasan_slab_alloc+0x14/0x20 mm/kasan/kasan.c:537
slab_post_alloc_hook mm/slab.h:417 [inline]
slab_alloc_node mm/slub.c:2728 [inline]
slab_alloc mm/slub.c:2736 [inline]
kmem_cache_alloc+0x14c/0x2e8 mm/slub.c:2741
reqsk_alloc include/net/request_sock.h:87 [inline]
inet_reqsk_alloc+0x4c/0x238 net/ipv4/tcp_input.c:6236
tcp_conn_request+0x2b0/0xea8 net/ipv4/tcp_input.c:6341
tcp_v4_conn_request+0xe0/0x100 net/ipv4/tcp_ipv4.c:1256
tcp_rcv_state_process+0x384/0x18a8 net/ipv4/tcp_input.c:5926
tcp_v4_do_rcv+0x2f0/0x3e0 net/ipv4/tcp_ipv4.c:1430
tcp_v4_rcv+0x1278/0x1350 net/ipv4/tcp_ipv4.c:1709
ip_local_deliver_finish+0x174/0x3e0 net/ipv4/ip_input.c:216
v1->v2: Change socket_mt6_v1_v2_v3() as well as mentioned by Eric
v2->v3: Put the correct fixes tag
Fixes:
|
||
|---|---|---|
| .. | ||
| 6lowpan | ||
| 9p | ||
| 802 | ||
| 8021q | ||
| appletalk | ||
| atm | ||
| ax25 | ||
| batman-adv | ||
| bluetooth | ||
| bpf | ||
| bridge | ||
| caif | ||
| can | ||
| ceph | ||
| core | ||
| dcb | ||
| dccp | ||
| decnet | ||
| dns_resolver | ||
| dsa | ||
| ethernet | ||
| hsr | ||
| ieee802154 | ||
| ife | ||
| ipv4 | ||
| ipv6 | ||
| ipx | ||
| iucv | ||
| kcm | ||
| key | ||
| l2tp | ||
| l3mdev | ||
| lapb | ||
| llc | ||
| mac80211 | ||
| mac802154 | ||
| mpls | ||
| ncsi | ||
| netfilter | ||
| netlabel | ||
| netlink | ||
| netrom | ||
| nfc | ||
| nsh | ||
| openvswitch | ||
| packet | ||
| phonet | ||
| psample | ||
| qrtr | ||
| rds | ||
| rfkill | ||
| rose | ||
| rxrpc | ||
| sched | ||
| sctp | ||
| smc | ||
| strparser | ||
| sunrpc | ||
| switchdev | ||
| tipc | ||
| tls | ||
| unix | ||
| vmw_vsock | ||
| wimax | ||
| wireless | ||
| x25 | ||
| xfrm | ||
| compat.c | ||
| Kconfig | ||
| Makefile | ||
| socket.c | ||
| sysctl_net.c | ||