==================================================================
BUG: KASAN: use-after-free in cleancache_fs_enabled_mapping include/linux/cleancache.h:56 [inline]
BUG: KASAN: use-after-free in cleancache_invalidate_page include/linux/cleancache.h:110 [inline]
BUG: KASAN: use-after-free in unaccount_page_cache_page+0x6d8/0x750 mm/filemap.c:163
Read of size 4 at addr ffff88810a7b3470 by task syz-executor.0/11848
CPU: 1 PID: 11848 Comm: syz-executor.0 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
print_address_description+0x87/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:427 [inline]
kasan_report+0x179/0x1c0 mm/kasan/report.c:444
__asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
cleancache_fs_enabled_mapping include/linux/cleancache.h:56 [inline]
cleancache_invalidate_page include/linux/cleancache.h:110 [inline]
unaccount_page_cache_page+0x6d8/0x750 mm/filemap.c:163
__delete_from_page_cache+0xc6/0x5b0 mm/filemap.c:231
__remove_mapping+0x566/0x690 mm/vmscan.c:1197
shrink_page_list+0x25f1/0x5820 mm/vmscan.c:1789
shrink_inactive_list mm/vmscan.c:2261 [inline]
shrink_list mm/vmscan.c:2506 [inline]
shrink_lruvec+0x17e9/0x4340 mm/vmscan.c:5694
shrink_node_memcgs mm/vmscan.c:5886 [inline]
shrink_node+0x1077/0x24e0 mm/vmscan.c:5916
shrink_zones mm/vmscan.c:6119 [inline]
do_try_to_free_pages+0x5b6/0x1570 mm/vmscan.c:6177
try_to_free_mem_cgroup_pages+0x36c/0x850 mm/vmscan.c:6491
memory_max_write+0x265/0x470 mm/memcontrol.c:6431
cgroup_file_write+0x290/0x590 kernel/cgroup/cgroup.c:3943
kernfs_fop_write_iter+0x2c4/0x410 fs/kernfs/file.c:296
call_write_iter include/linux/fs.h:2159 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xd8a/0x1160 fs/read_write.c:594
ksys_write+0x199/0x2c0 fs/read_write.c:647
__do_sys_write fs/read_write.c:659 [inline]
__se_sys_write fs/read_write.c:656 [inline]
__x64_sys_write+0x7b/0x90 fs/read_write.c:656
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f313ceba169
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:00007f313bbeb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f313cfda120 RCX: 00007f313ceba169
RDX: 0000000000000012 RSI: 0000000020000140 RDI: 000000000000000a
RBP: 00007f313cf15ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc56f3b43f R14: 00007f313bbeb300 R15: 0000000000022000
Allocated by task 11567:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:433 [inline]
____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:512
__kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521
kasan_kmalloc include/linux/kasan.h:227 [inline]
__kmalloc+0x13a/0x270 mm/slub.c:4425
kmalloc include/linux/slab.h:613 [inline]
sk_prot_alloc+0xf9/0x330 net/core/sock.c:1843
sk_alloc+0x38/0x430 net/core/sock.c:1900
__netlink_create net/netlink/af_netlink.c:647 [inline]
netlink_create+0x3e9/0x640 net/netlink/af_netlink.c:710
__sock_create+0x3a6/0x760 net/socket.c:1467
sock_create net/socket.c:1518 [inline]
__sys_socket+0x132/0x370 net/socket.c:1560
__do_sys_socket net/socket.c:1569 [inline]
__se_sys_socket net/socket.c:1567 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1567
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu kernel/rcu/tree.c:2993 [inline]
call_rcu+0x133/0x12a0 kernel/rcu/tree.c:3073
netlink_release+0x12df/0x16f0 net/netlink/af_netlink.c:819
__sock_release net/socket.c:649 [inline]
sock_close+0xdf/0x270 net/socket.c:1317
__fput+0x3fe/0x910 fs/file_table.c:280
____fput+0x15/0x20 fs/file_table.c:308
task_work_run+0x129/0x190 kernel/task_work.c:164
get_signal+0x15a9/0x1630 kernel/signal.c:2663
arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:865
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172
exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208
__syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0xf0 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu kernel/rcu/tree.c:2993 [inline]
call_rcu+0x133/0x12a0 kernel/rcu/tree.c:3073
in6_dev_finish_destroy+0x15a/0x1b0 net/ipv6/addrconf_core.c:271
in6_dev_put include/net/addrconf.h:390 [inline]
addrconf_ifdown+0x1893/0x1ae0 net/ipv6/addrconf.c:3929
addrconf_notify+0x37d/0xdd0
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0x8c/0xf0 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2005 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2017 [inline]
call_netdevice_notifiers net/core/dev.c:2031 [inline]
unregister_netdevice_many+0xe0a/0x17c0 net/core/dev.c:11080
sit_exit_batch_net+0x620/0x670 net/ipv6/sit.c:1950
ops_exit_list net/core/net_namespace.c:174 [inline]
cleanup_net+0x6ce/0xc00 net/core/net_namespace.c:596
process_one_work+0x6bb/0xc10 kernel/workqueue.c:2313
worker_thread+0xad5/0x12a0 kernel/workqueue.c:2460
kthread+0x421/0x510 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
The buggy address belongs to the object at ffff88810a7b3000
which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1136 bytes inside of
2048-byte region [ffff88810a7b3000, ffff88810a7b3800)
The buggy address belongs to the page:
page:ffffea000429ec00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88810a7b3000 pfn:0x10a7b0
head:ffffea000429ec00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 ffffea000466ea08 ffffea0004624408 ffff888100043200
raw: ffff88810a7b3000 0000000000080007 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 455, ts 174044435226, free_ts 174038457212
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2502
prep_new_page mm/page_alloc.c:2508 [inline]
get_page_from_freelist+0x2c14/0x2cf0 mm/page_alloc.c:4291
__alloc_pages+0x386/0x7b0 mm/page_alloc.c:5569
allocate_slab mm/slub.c:1930 [inline]
new_slab+0x92/0x490 mm/slub.c:1993
___slab_alloc+0x39e/0x830 mm/slub.c:3026
__slab_alloc+0x4a/0x90 mm/slub.c:3113
slab_alloc_node mm/slub.c:3204 [inline]
slab_alloc mm/slub.c:3246 [inline]
kmem_cache_alloc_trace+0x142/0x210 mm/slub.c:3263
kmalloc include/linux/slab.h:608 [inline]
kzalloc include/linux/slab.h:738 [inline]
ipv6_add_dev+0xd1/0x1140 net/ipv6/addrconf.c:385
addrconf_notify+0x593/0xdd0 net/ipv6/addrconf.c:3574
notifier_call_chain kernel/notifier.c:83 [inline]
raw_notifier_call_chain+0x8c/0xf0 kernel/notifier.c:391
call_netdevice_notifiers_info net/core/dev.c:2005 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2017 [inline]
call_netdevice_notifiers+0x145/0x1b0 net/core/dev.c:2031
register_netdevice+0xff1/0x1350 net/core/dev.c:10365
veth_newlink+0x720/0xe30 drivers/net/veth.c:1702
__rtnl_newlink net/core/rtnetlink.c:3462 [inline]
rtnl_newlink+0x146e/0x2040 net/core/rtnetlink.c:3510
rtnetlink_rcv_msg+0x951/0xc40 net/core/rtnetlink.c:5587
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2533
page last free stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
free_pages_prepare mm/page_alloc.c:1370 [inline]
free_pcp_prepare mm/page_alloc.c:1442 [inline]
free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3441
free_unref_page+0xac/0x2c0 mm/page_alloc.c:3521
free_the_page mm/page_alloc.c:711 [inline]
__free_pages+0x61/0xf0 mm/page_alloc.c:5645
__free_slab+0xec/0x1d0 mm/slub.c:2018
free_slab mm/slub.c:2033 [inline]
discard_slab mm/slub.c:2039 [inline]
__unfreeze_partials+0x165/0x1a0 mm/slub.c:2525
put_cpu_partial+0xc4/0x120 mm/slub.c:2605
__slab_free+0x1c8/0x290 mm/slub.c:3386
do_slab_free mm/slub.c:3505 [inline]
___cache_free+0x109/0x120 mm/slub.c:3524
qlink_free+0x4d/0x90 mm/kasan/quarantine.c:157
qlist_free_all+0x44/0xb0 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x15a/0x180 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:443
kasan_slab_alloc include/linux/kasan.h:217 [inline]
slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:550
slab_alloc_node mm/slub.c:3238 [inline]
slab_alloc mm/slub.c:3246 [inline]
kmem_cache_alloc_trace+0xf9/0x210 mm/slub.c:3263
kmalloc include/linux/slab.h:608 [inline]
kzalloc include/linux/slab.h:738 [inline]
____ip_mc_inc_group+0x215/0x8d0 net/ipv4/igmp.c:1449
__ip_mc_inc_group net/ipv4/igmp.c:1484 [inline]
ip_mc_inc_group net/ipv4/igmp.c:1490 [inline]
ip_mc_up+0x10f/0x1e0 net/ipv4/igmp.c:1789
Memory state around the buggy address:
ffff88810a7b3300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88810a7b3380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88810a7b3400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88810a7b3480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88810a7b3500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
syz-executor.0 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
CPU: 1 PID: 11848 Comm: syz-executor.0 Tainted: G B 5.15.106-syzkaller-00249-g19c0ed55a470 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
dump_stack+0x15/0x17 lib/dump_stack.c:113
dump_header+0xd8/0x6d0 mm/oom_kill.c:466
oom_kill_process+0xef/0x2d0 mm/oom_kill.c:1027
out_of_memory+0x6c2/0xab0 mm/oom_kill.c:1170
mem_cgroup_out_of_memory+0x25d/0x3b0 mm/memcontrol.c:1677
memory_max_write+0x356/0x470 mm/memcontrol.c:6438
cgroup_file_write+0x290/0x590 kernel/cgroup/cgroup.c:3943
kernfs_fop_write_iter+0x2c4/0x410 fs/kernfs/file.c:296
call_write_iter include/linux/fs.h:2159 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0xd8a/0x1160 fs/read_write.c:594
ksys_write+0x199/0x2c0 fs/read_write.c:647
__do_sys_write fs/read_write.c:659 [inline]
__se_sys_write fs/read_write.c:656 [inline]
__x64_sys_write+0x7b/0x90 fs/read_write.c:656
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f313ceba169
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:00007f313bbeb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f313cfda120 RCX: 00007f313ceba169
RDX: 0000000000000012 RSI: 0000000020000140 RDI: 000000000000000a
RBP: 00007f313cf15ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc56f3b43f R14: 00007f313bbeb300 R15: 0000000000022000
memory: usage 26688kB, limit 0kB, failcnt 89
swap: usage 0kB, limit 9007199254740988kB, failcnt 0
Memory cgroup stats for /syz1:
anon 45056
file 27189248
kernel_stack 0
pagetables 0
percpu 0
sock 0
shmem 27185152
file_mapped 188416
file_dirty 4096
file_writeback 0
swapcached 0
anon_thp 0
file_thp 0
shmem_thp 0
inactive_anon 7815168
active_anon 19415040
inactive_file 49152
active_file 49152
unevictable 0
slab_reclaimable 0
slab_unreclaimable 0
slab 0
workingset_refault_anon 0
workingset_refault_file 99
workingset_activate_anon 0
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz0,mems_allowed=0,oom_memcg=/syz1,task_memcg=/syz1,task=syz-executor.1,pid=2585,uid=0
Memory cgroup out of memory: Killed process 2585 (syz-executor.1) total-vm:48520kB, anon-rss:468kB, file-rss:15220kB, shmem-rss:64kB, UID:0 pgtables:80kB oom_score_adj:0