==================================================================
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 ffff888032eda758 by task syz-executor/9217
CPU: 1 UID: 0 PID: 9217 Comm: syz-executor Not tainted 6.13.0-rc1-syzkaller-00025-gfeffde684ac2 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
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+0x386/0x6d0 include/linux/netfilter.h:269
__ip_local_out+0x339/0x640 net/ipv4/ip_output.c:119
ip_local_out net/ipv4/ip_output.c:128 [inline]
ip_send_skb net/ipv4/ip_output.c:1505 [inline]
ip_push_pending_frames+0xa0/0x5b0 net/ipv4/ip_output.c:1525
ip_send_unicast_reply+0xd0e/0x1650 net/ipv4/ip_output.c:1672
tcp_v4_send_reset+0x129b/0x2f20 net/ipv4/tcp_ipv4.c:910
tcp_v4_rcv+0x3715/0x4380 net/ipv4/tcp_ipv4.c:2431
ip_protocol_deliver_rcu+0xba/0x4c0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:460 [inline]
ip_sublist_rcv_finish+0x2c1/0x620 net/ipv4/ip_input.c:578
ip_list_rcv_finish.constprop.0+0x559/0x720 net/ipv4/ip_input.c:628
ip_sublist_rcv net/ipv4/ip_input.c:636 [inline]
ip_list_rcv+0x339/0x450 net/ipv4/ip_input.c:670
__netif_receive_skb_list_ptype net/core/dev.c:5715 [inline]
__netif_receive_skb_list_core+0x755/0x950 net/core/dev.c:5762
__netif_receive_skb_list net/core/dev.c:5814 [inline]
netif_receive_skb_list_internal+0x753/0xdb0 net/core/dev.c:5905
gro_normal_list include/net/gro.h:515 [inline]
gro_normal_list include/net/gro.h:511 [inline]
napi_complete_done+0x218/0x940 net/core/dev.c:6256
e1000_clean+0xa28/0x2700 drivers/net/ethernet/intel/e1000/e1000_main.c:3815
__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:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0x109/0x170 kernel/softirq.c:655
irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
common_interrupt+0xbf/0xe0 arch/x86/kernel/irq.c:278
asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1088 [inline]
RIP: 0010:debug_check_no_obj_freed+0x1c5/0x600 lib/debugobjects.c:1129
Code: 24 58 4b 8d 04 2c 4c 89 64 24 28 48 8d 34 c5 c0 f0 9c 9a 4c 89 6c 24 30 48 89 f0 49 89 f4 48 c1 e8 03 48 01 d8 48 89 44 24 40 <48> 8b 7c 24 58 e8 11 e4 85 06 48 89 44 24 48 48 8b 44 24 40 80 38
RSP: 0018:ffffc90003bdf8b0 EFLAGS: 00000286
RAX: fffffbfff3545ed2 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff9aa2f690 RDI: 0000000000000001
RBP: ffffc90003bdf9f0 R08: 0000000000000001 R09: 000000000000ab50
R10: ffffffff905f0417 R11: 0000000000000000 R12: ffffffff9aa2f690
R13: 000000000000156a R14: 0000000000000002 R15: ffffc90033a46000
remove_vm_area+0x1ae/0x3f0 mm/vmalloc.c:3241
vfree+0x90/0x890 mm/vmalloc.c:3364
kcov_put kernel/kcov.c:439 [inline]
kcov_put+0x2a/0x40 kernel/kcov.c:435
kcov_close+0xd/0x20 kernel/kcov.c:535
__fput+0x3f8/0xb60 fs/file_table.c:450
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xadd/0x2d70 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3017
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa25c5b27c5
Code: Unable to access opcode bytes at 0x7fa25c5b279b.
RSP: 002b:00007ffe0b061720 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: 0000000000000000 RBX: 00000000000002b4 RCX: 00007fa25c5b27c5
RDX: 00007ffe0b061760 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffe0b0617bc R08: 0000000000000000 R09: 00007fa25d351000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 0000000000030d48 R14: 0000000000030d0b R15: 00007ffe0b061810
The buggy address belongs to the object at ffff888032eda6e0
which belongs to the cache tw_sock_TCP of size 288
The buggy address is located 120 bytes inside of
allocated 288-byte region [ffff888032eda6e0, ffff888032eda800)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888032eda160 pfn:0x32eda
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888024bfa901
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801ca8f680 dead000000000122 0000000000000000
raw: ffff888032eda160 0000000080170015 00000001f5000000 ffff888024bfa901
head: 00fff00000000040 ffff88801ca8f680 dead000000000122 0000000000000000
head: ffff888032eda160 0000000080170015 00000001f5000000 ffff888024bfa901
head: 00fff00000000001 ffffea0000cbb681 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 8042, tgid 8042 (syz.3.693), ts 95888117108, free_ts 95872462033
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+0x1fda/0x4c40 net/ipv4/tcp_input.c:6925
tcp_v4_do_rcv+0x1ad/0xa90 net/ipv4/tcp_ipv4.c:1939
sk_backlog_rcv include/net/sock.h:1121 [inline]
__release_sock+0x31b/0x400 net/core/sock.c:3083
__tcp_close+0x4f3/0xff0 net/ipv4/tcp.c:3143
tcp_close+0x28/0x120 net/ipv4/tcp.c:3221
inet_release+0x13c/0x280 net/ipv4/af_inet.c:435
page last free pid 8043 tgid 8040 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
get_signal+0x24ed/0x26c0 kernel/signal.c:3017
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff888032eda600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888032eda680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888032eda700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff888032eda780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff888032eda800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
----------------
Code disassembly (best guess):
0: 24 58 and $0x58,%al
2: 4b 8d 04 2c lea (%r12,%r13,1),%rax
6: 4c 89 64 24 28 mov %r12,0x28(%rsp)
b: 48 8d 34 c5 c0 f0 9c lea -0x65630f40(,%rax,8),%rsi
12: 9a
13: 4c 89 6c 24 30 mov %r13,0x30(%rsp)
18: 48 89 f0 mov %rsi,%rax
1b: 49 89 f4 mov %rsi,%r12
1e: 48 c1 e8 03 shr $0x3,%rax
22: 48 01 d8 add %rbx,%rax
25: 48 89 44 24 40 mov %rax,0x40(%rsp)
* 2a: 48 8b 7c 24 58 mov 0x58(%rsp),%rdi <-- trapping instruction
2f: e8 11 e4 85 06 call 0x685e445
34: 48 89 44 24 48 mov %rax,0x48(%rsp)
39: 48 8b 44 24 40 mov 0x40(%rsp),%rax
3e: 80 .byte 0x80
3f: 38 .byte 0x38