==================================================================
BUG: KASAN: slab-out-of-bounds in selinux_sock security/selinux/include/objsec.h:207 [inline]
BUG: KASAN: slab-out-of-bounds in selinux_ip_output+0x1e0/0x1f0 security/selinux/hooks.c:5761
Read of size 8 at addr ffff8880440ee498 by task kworker/u8:1/12
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.13.0-rc1-syzkaller-00036-g5076001689e4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: krdsd rds_send_worker
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:489
kasan_report+0xd9/0x110 mm/kasan/report.c:602
selinux_sock security/selinux/include/objsec.h:207 [inline]
selinux_ip_output+0x1e0/0x1f0 security/selinux/hooks.c:5761
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
nf_hook+0x474/0x7d0 include/linux/netfilter.h:269
NF_HOOK include/linux/netfilter.h:312 [inline]
ip6_xmit+0xd44/0x2130 net/ipv6/ip6_output.c:366
tcp_v6_send_response+0x11d9/0x25e0 net/ipv6/tcp_ipv6.c:999
tcp_v6_send_reset+0x636/0x1590 net/ipv6/tcp_ipv6.c:1135
tcp_v6_rcv+0x311f/0x3fd0 net/ipv6/tcp_ipv6.c:1996
ip6_protocol_deliver_rcu+0x180/0x1510 net/ipv6/ip6_input.c:436
ip6_input_finish+0x14f/0x2f0 net/ipv6/ip6_input.c:481
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip6_input+0xa1/0xd0 net/ipv6/ip6_input.c:490
dst_input include/net/dst.h:460 [inline]
ip6_rcv_finish+0x1ad/0x5b0 net/ipv6/ip6_input.c:79
ip_sabotage_in+0x21b/0x290 net/bridge/br_netfilter_hooks.c:1021
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269
NF_HOOK include/linux/netfilter.h:312 [inline]
ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5672
__netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
netif_receive_skb_internal net/core/dev.c:5871 [inline]
netif_receive_skb+0x13f/0x7b0 net/core/dev.c:5930
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
br_pass_frame_up+0x346/0x490 net/bridge/br_input.c:70
br_handle_frame_finish+0x122c/0x1c80 net/bridge/br_input.c:208
br_nf_hook_thresh+0x303/0x410 net/bridge/br_netfilter_hooks.c:1198
br_nf_pre_routing_finish_ipv6+0x76a/0xfb0 net/bridge/br_netfilter_ipv6.c:154
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x3ce/0x8c0 net/bridge/br_netfilter_ipv6.c:184
br_nf_pre_routing+0x860/0x15b0 net/bridge/br_netfilter_hooks.c:536
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x9eb/0x1490 net/bridge/br_input.c:424
__netif_receive_skb_core.constprop.0+0xa76/0x4470 net/core/dev.c:5566
__netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5670
__netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
process_backlog+0x443/0x15f0 net/core/dev.c:6117
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6877
napi_poll net/core/dev.c:6946 [inline]
net_rx_action+0xa94/0x1010 net/core/dev.c:7068
handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
do_softirq kernel/softirq.c:455 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:442
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
__dev_queue_xmit+0x8b0/0x43e0 net/core/dev.c:4461
dev_queue_xmit include/linux/netdevice.h:3168 [inline]
neigh_resolve_output net/core/neighbour.c:1514 [inline]
neigh_resolve_output+0x5bc/0x950 net/core/neighbour.c:1494
neigh_output include/net/neighbour.h:539 [inline]
ip6_finish_output2+0xb1b/0x2070 net/ipv6/ip6_output.c:141
__ip6_finish_output net/ipv6/ip6_output.c:215 [inline]
ip6_finish_output+0x3f9/0x1360 net/ipv6/ip6_output.c:226
NF_HOOK_COND include/linux/netfilter.h:303 [inline]
ip6_output+0x1f8/0x540 net/ipv6/ip6_output.c:247
dst_output include/net/dst.h:450 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip6_xmit+0x1234/0x2130 net/ipv6/ip6_output.c:366
inet6_csk_xmit+0x3ce/0x740 net/ipv6/inet6_connection_sock.c:135
__tcp_transmit_skb+0x1b02/0x3df0 net/ipv4/tcp_output.c:1466
tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]
tcp_write_xmit+0x12b1/0x8560 net/ipv4/tcp_output.c:2827
__tcp_push_pending_frames+0xaf/0x390 net/ipv4/tcp_output.c:3010
tcp_sendmsg_locked+0x25b3/0x3770 net/ipv4/tcp.c:1304
tcp_sendmsg+0x2e/0x50 net/ipv4/tcp.c:1358
inet6_sendmsg+0xb9/0x140 net/ipv6/af_inet6.c:659
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg net/socket.c:726 [inline]
sock_sendmsg+0x2b5/0x470 net/socket.c:749
rds_tcp_xmit+0x34e/0xc50 net/rds/tcp_send.c:125
rds_send_xmit+0xf36/0x24a0 net/rds/send.c:366
rds_send_worker+0x8f/0x2e0 net/rds/threads.c:200
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
The buggy address belongs to the object at ffff8880440ee420
which belongs to the cache tw_sock_TCPv6 of size 288
The buggy address is located 120 bytes inside of
allocated 288-byte region [ffff8880440ee420, ffff8880440ee540)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x440ee
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff88801eb4e001
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88814c3ff140 dead000000000122 0000000000000000
raw: 0000000000000000 0000000080170017 00000001f5000000 ffff88801eb4e001
head: 00fff00000000040 ffff88814c3ff140 dead000000000122 0000000000000000
head: 0000000000000000 0000000080170017 00000001f5000000 ffff88801eb4e001
head: 00fff00000000001 ffffea0001103b81 ffffffffffffffff 0000000000000000
head: ffff888000000002 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0x52820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 24, tgid 24 (ksoftirqd/1), ts 710505579843, free_ts 710490548206
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1556
prep_new_page mm/page_alloc.c:1564 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3474
__alloc_pages_noprof+0x223/0x25b0 mm/page_alloc.c:4751
alloc_pages_mpol_noprof+0x2c9/0x610 mm/mempolicy.c:2265
alloc_slab_page mm/slub.c:2408 [inline]
allocate_slab mm/slub.c:2574 [inline]
new_slab+0x2c9/0x410 mm/slub.c:2627
___slab_alloc+0xdac/0x1870 mm/slub.c:3815
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3905
__slab_alloc_node mm/slub.c:3980 [inline]
slab_alloc_node mm/slub.c:4141 [inline]
kmem_cache_alloc_noprof+0xfa/0x3d0 mm/slub.c:4160
inet_twsk_alloc+0x120/0x970 net/ipv4/inet_timewait_sock.c:188
tcp_time_wait+0x5f/0xe10 net/ipv4/tcp_minisocks.c:309
tcp_rcv_state_process+0x4935/0x4c40 net/ipv4/tcp_input.c:6917
tcp_v6_do_rcv+0x492/0x1730 net/ipv6/tcp_ipv6.c:1667
tcp_v6_rcv+0x30b3/0x3fd0 net/ipv6/tcp_ipv6.c:1914
ip6_protocol_deliver_rcu+0x180/0x1510 net/ipv6/ip6_input.c:436
ip6_input_finish+0x14f/0x2f0 net/ipv6/ip6_input.c:481
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip6_input+0xa1/0xd0 net/ipv6/ip6_input.c:490
page last free pid 13320 tgid 13320 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0x661/0x1080 mm/page_alloc.c:2657
mm_free_pgd kernel/fork.c:809 [inline]
__mmdrop+0xd5/0x460 kernel/fork.c:925
mmdrop include/linux/sched/mm.h:55 [inline]
__mmput+0x404/0x4c0 kernel/fork.c:1364
mmput+0x62/0x70 kernel/fork.c:1375
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9bf/0x2d70 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff8880440ee380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880440ee400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880440ee480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff8880440ee500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880440ee580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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