==================================================================
BUG: KASAN: use-after-free in __lock_acquire+0x3ee7/0x56d0 kernel/locking/lockdep.c:4925
Read of size 8 at addr ffff888146c03110 by task syz-executor.5/14106
CPU: 1 PID: 14106 Comm: syz-executor.5 Not tainted 6.1.0-next-20221216-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:306 [inline]
print_report+0x15e/0x45d mm/kasan/report.c:417
kasan_report+0xc0/0xf0 mm/kasan/report.c:517
__lock_acquire+0x3ee7/0x56d0 kernel/locking/lockdep.c:4925
lock_acquire.part.0+0x11a/0x350 kernel/locking/lockdep.c:5668
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
skb_queue_tail+0x25/0x150 net/core/skbuff.c:3569
rxrpc_encap_rcv+0x106/0x230 net/rxrpc/io_thread.c:39
udp_queue_rcv_one_skb+0xa93/0x18d0 net/ipv4/udp.c:2164
udp_queue_rcv_skb+0x192/0x9b0 net/ipv4/udp.c:2241
udp_unicast_rcv_skb+0x15c/0x3a0 net/ipv4/udp.c:2401
__udp4_lib_rcv+0x11e9/0x31d0 net/ipv4/udp.c:2473
ip_protocol_deliver_rcu+0x9f/0x460 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2ec/0x4c0 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:302 [inline]
NF_HOOK include/linux/netfilter.h:296 [inline]
ip_local_deliver+0x1ae/0x200 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:454 [inline]
ip_rcv_finish+0x1cf/0x2f0 net/ipv4/ip_input.c:449
NF_HOOK include/linux/netfilter.h:302 [inline]
NF_HOOK include/linux/netfilter.h:296 [inline]
ip_rcv+0xae/0xd0 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5482
__netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5596
process_backlog+0x2a9/0x690 net/core/dev.c:5924
__napi_poll+0xaf/0x430 net/core/dev.c:6485
napi_poll net/core/dev.c:6552 [inline]
net_rx_action+0x8da/0xc70 net/core/dev.c:6663
__do_softirq+0x1fb/0xadc kernel/softirq.c:571
do_softirq.part.0+0xde/0x130 kernel/softirq.c:472
do_softirq kernel/softirq.c:464 [inline]
__local_bh_enable_ip+0x106/0x130 kernel/softirq.c:396
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:834 [inline]
ip_finish_output2+0x7dc/0x2180 net/ipv4/ip_output.c:229
__ip_finish_output net/ipv4/ip_output.c:306 [inline]
__ip_finish_output+0x396/0x650 net/ipv4/ip_output.c:288
ip_finish_output+0x31/0x280 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:291 [inline]
ip_output+0x1a3/0x320 net/ipv4/ip_output.c:430
dst_output include/net/dst.h:444 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
ip_send_skb+0xd8/0x260 net/ipv4/ip_output.c:1586
udp_send_skb+0x73a/0x1490 net/ipv4/udp.c:978
udp_sendmsg+0x1bba/0x2750 net/ipv4/udp.c:1265
inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:827
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xd3/0x120 net/socket.c:734
____sys_sendmsg+0x334/0x8c0 net/socket.c:2476
___sys_sendmsg+0x110/0x1b0 net/socket.c:2530
__sys_sendmmsg+0x1b7/0x540 net/socket.c:2616
__do_sys_sendmmsg net/socket.c:2645 [inline]
__se_sys_sendmmsg net/socket.c:2642 [inline]
__x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2642
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f64e068c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f64e1399168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f64e07abf80 RCX: 00007f64e068c0d9
RDX: 0000000000000002 RSI: 0000000020008b80 RDI: 0000000000000003
RBP: 00007f64e06e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcaa8ebddf R14: 00007f64e1399300 R15: 0000000000022000
Allocated by task 8266:
kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:371 [inline]
____kasan_kmalloc mm/kasan/common.c:330 [inline]
__kasan_kmalloc+0xa5/0xb0 mm/kasan/common.c:380
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slab_common.c:968 [inline]
__kmalloc+0x5a/0xd0 mm/slab_common.c:981
kmalloc include/linux/slab.h:584 [inline]
kzalloc include/linux/slab.h:720 [inline]
ieee802_11_parse_elems_full+0x106/0x1330 net/mac80211/util.c:1655
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2260 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2267 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1605 [inline]
ieee80211_ibss_rx_queued_mgmt+0xc83/0x2f80 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1581 [inline]
ieee80211_iface_work+0xa4d/0xd70 net/mac80211/iface.c:1635
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Last potentially related work creation:
kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:488
__call_rcu_common.constprop.0+0x99/0x780 kernel/rcu/tree.c:2753
rxrpc_put_local.part.0+0x128/0x170 net/rxrpc/local_object.c:332
rxrpc_put_local+0x25/0x30 net/rxrpc/local_object.c:324
rxrpc_release_sock net/rxrpc/af_rxrpc.c:888 [inline]
rxrpc_release+0x237/0x550 net/rxrpc/af_rxrpc.c:914
__sock_release+0xcd/0x280 net/socket.c:650
sock_close+0x1c/0x20 net/socket.c:1365
__fput+0x27c/0xa90 fs/file_table.c:320
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Second to last potentially related work creation:
kasan_save_stack+0x22/0x40 mm/kasan/common.c:45
__kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:488
kvfree_call_rcu+0x78/0x8f0 kernel/rcu/tree.c:3374
neigh_destroy+0x435/0x640 net/core/neighbour.c:931
neigh_release include/net/neighbour.h:449 [inline]
neigh_cleanup_and_release net/core/neighbour.c:103 [inline]
neigh_periodic_work+0x710/0xaa0 net/core/neighbour.c:1013
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
The buggy address belongs to the object at ffff888146c03000
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 272 bytes inside of
1024-byte region [ffff888146c03000, ffff888146c03400)
The buggy address belongs to the physical page:
page:ffffea00051b0000 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888146c07000 pfn:0x146c00
head:ffffea00051b0000 order:3 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0
flags: 0x57ff00000010200(slab|head|node=1|zone=2|lastcpupid=0x7ff)
raw: 057ff00000010200 ffff888012441dc0 ffffea000502aa10 ffffea0005151810
raw: ffff888146c07000 0000000000100004 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5130, tgid 5130 (syz-executor.4), ts 246677596000, free_ts 98425744504
prep_new_page mm/page_alloc.c:2531 [inline]
get_page_from_freelist+0x119e/0x2a80 mm/page_alloc.c:4283
__alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5549
__alloc_pages_node include/linux/gfp.h:237 [inline]
alloc_slab_page mm/slub.c:1853 [inline]
allocate_slab+0xa7/0x350 mm/slub.c:1998
new_slab mm/slub.c:2051 [inline]
___slab_alloc+0xa91/0x1400 mm/slub.c:3193
__slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3292
__slab_alloc_node mm/slub.c:3345 [inline]
slab_alloc_node mm/slub.c:3442 [inline]
__kmem_cache_alloc_node+0x1a4/0x430 mm/slub.c:3491
__do_kmalloc_node mm/slab_common.c:967 [inline]
__kmalloc_node+0x4d/0xd0 mm/slab_common.c:975
kmalloc_node include/linux/slab.h:610 [inline]
kvmalloc_node+0xa2/0x1a0 mm/util.c:581
kvzalloc_node include/linux/slab.h:741 [inline]
alloc_shrinker_info+0xd7/0x240 mm/vmscan.c:294
mem_cgroup_css_online+0x186/0x3a0 mm/memcontrol.c:5380
online_css+0xaf/0x2a0 kernel/cgroup/cgroup.c:5481
css_create kernel/cgroup/cgroup.c:5552 [inline]
cgroup_apply_control_enable+0x69b/0xc00 kernel/cgroup/cgroup.c:3239
cgroup_mkdir+0x5b9/0x12f0 kernel/cgroup/cgroup.c:5748
kernfs_iop_mkdir+0x14a/0x1d0 fs/kernfs/dir.c:1217
vfs_mkdir+0x48d/0x740 fs/namei.c:4036
do_mkdirat+0x27b/0x2f0 fs/namei.c:4061
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1446 [inline]
free_pcp_prepare+0x4d0/0x9e0 mm/page_alloc.c:1496
free_unref_page_prepare mm/page_alloc.c:3369 [inline]
free_unref_page+0x1d/0x490 mm/page_alloc.c:3464
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x6a/0x170 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x192/0x220 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x66/0x90 mm/kasan/common.c:302
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slab.h:761 [inline]
slab_alloc_node mm/slub.c:3452 [inline]
__kmem_cache_alloc_node+0x1ea/0x430 mm/slub.c:3491
__do_kmalloc_node mm/slab_common.c:967 [inline]
__kmalloc+0x4a/0xd0 mm/slab_common.c:981
kmalloc include/linux/slab.h:584 [inline]
tomoyo_realpath_from_path+0xc3/0x600 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x22d/0x430 security/tomoyo/file.c:822
security_inode_getattr+0xd3/0x140 security/security.c:1375
vfs_getattr fs/stat.c:167 [inline]
vfs_statx+0x16e/0x430 fs/stat.c:242
vfs_fstatat+0x90/0xb0 fs/stat.c:276
__do_sys_newfstatat+0x8a/0x110 fs/stat.c:446
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Memory state around the buggy address:
ffff888146c03000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888146c03080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888146c03100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff888146c03180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff888146c03200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
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