==================================================================
BUG: KASAN: use-after-free in cleancache_fs_enabled_mapping include/linux/cleancache.h:54 [inline]
BUG: KASAN: use-after-free in cleancache_invalidate_page include/linux/cleancache.h:108 [inline]
BUG: KASAN: use-after-free in unaccount_page_cache_page+0x639/0x6b0 mm/filemap.c:169
Read of size 4 at addr ffff8881b673b488 by task syz-executor.1/4256

CPU: 1 PID: 4256 Comm: syz-executor.1 Not tainted 5.4.233-syzkaller-00019-gd5ed2ca98e48 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 print_address_description+0x8c/0x600 mm/kasan/report.c:384
 __kasan_report+0xf3/0x120 mm/kasan/report.c:516
 kasan_report+0x30/0x60 mm/kasan/common.c:653
 cleancache_fs_enabled_mapping include/linux/cleancache.h:54 [inline]
 cleancache_invalidate_page include/linux/cleancache.h:108 [inline]
 unaccount_page_cache_page+0x639/0x6b0 mm/filemap.c:169
 __delete_from_page_cache+0xc3/0x510 mm/filemap.c:237
 __remove_mapping+0x46e/0x550 mm/vmscan.c:978
 shrink_page_list+0x2467/0x3e70 mm/vmscan.c:1482
 shrink_inactive_list+0x4f6/0xfd0 mm/vmscan.c:2001
 shrink_list mm/vmscan.c:2293 [inline]
 shrink_node_memcg+0xc42/0x2430 mm/vmscan.c:2623
 shrink_node+0x396/0x12b0 mm/vmscan.c:2836
 shrink_zones mm/vmscan.c:3053 [inline]
 do_try_to_free_pages+0x625/0x1280 mm/vmscan.c:3111
 try_to_free_mem_cgroup_pages+0x3f6/0x9b0 mm/vmscan.c:3412
 memory_max_write+0x235/0x3c0 mm/memcontrol.c:6220
 cgroup_file_write+0x275/0x5c0 kernel/cgroup/cgroup.c:3898
 kernfs_fop_write+0x2e2/0x3e0 fs/kernfs/file.c:315
 __vfs_write+0x103/0x750 fs/read_write.c:494
 vfs_write+0x206/0x4e0 fs/read_write.c:558
 ksys_write+0x199/0x2c0 fs/read_write.c:611
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1

Allocated by task 3903:
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 __kasan_kmalloc+0x130/0x1d0 mm/kasan/common.c:529
 kmalloc include/linux/slab.h:556 [inline]
 kzalloc include/linux/slab.h:690 [inline]
 alloc_super+0x56/0x760 fs/super.c:203
 sget+0x1f1/0x4d0 fs/super.c:613
 mount_bdev+0xe4/0x340 fs/super.c:1390
 legacy_get_tree+0xdf/0x170 fs/fs_context.c:647
 vfs_get_tree+0x85/0x260 fs/super.c:1547
 do_new_mount+0x292/0x570 fs/namespace.c:2843
 do_mount+0x688/0xdd0 fs/namespace.c:3163
 ksys_mount+0xc2/0xf0 fs/namespace.c:3372
 __do_sys_mount fs/namespace.c:3386 [inline]
 __se_sys_mount fs/namespace.c:3383 [inline]
 __x64_sys_mount+0xb1/0xc0 fs/namespace.c:3383
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1

Freed by task 308:
 save_stack mm/kasan/common.c:70 [inline]
 set_track mm/kasan/common.c:78 [inline]
 kasan_set_free_info mm/kasan/common.c:345 [inline]
 __kasan_slab_free+0x178/0x230 mm/kasan/common.c:487
 slab_free_hook mm/slub.c:1455 [inline]
 slab_free_freelist_hook mm/slub.c:1494 [inline]
 slab_free mm/slub.c:3080 [inline]
 kfree+0xeb/0x320 mm/slub.c:4071
 process_one_work+0x765/0xd20 kernel/workqueue.c:2287
 worker_thread+0xaef/0x1470 kernel/workqueue.c:2433
 kthread+0x2da/0x360 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354

The buggy address belongs to the object at ffff8881b673b000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 1160 bytes inside of
 2048-byte region [ffff8881b673b000, ffff8881b673b800)
The buggy address belongs to the page:
page:ffffea0006d9ce00 refcount:1 mapcount:0 mapping:ffff8881f5c0c000 index:0x0 compound_mapcount: 0
flags: 0x8000000000010200(slab|head)
raw: 8000000000010200 dead000000000100 dead000000000122 ffff8881f5c0c000
raw: 0000000000000000 0000000000080008 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 0xd2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC)
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook mm/page_alloc.c:2165 [inline]
 prep_new_page+0x18f/0x370 mm/page_alloc.c:2171
 get_page_from_freelist+0x2ce8/0x2d70 mm/page_alloc.c:3794
 __alloc_pages_nodemask+0x393/0x840 mm/page_alloc.c:4891
 alloc_slab_page+0x39/0x3c0 mm/slub.c:343
 allocate_slab mm/slub.c:1683 [inline]
 new_slab+0x97/0x440 mm/slub.c:1749
 new_slab_objects mm/slub.c:2505 [inline]
 ___slab_alloc+0x2fe/0x490 mm/slub.c:2667
 __slab_alloc+0x5a/0x90 mm/slub.c:2707
 slab_alloc_node mm/slub.c:2792 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc_track_caller+0x168/0x290 mm/slub.c:4449
 __kmalloc_reserve net/core/skbuff.c:142 [inline]
 pskb_expand_head+0x10d/0x1060 net/core/skbuff.c:1647
 netlink_trim+0x198/0x230 net/netlink/af_netlink.c:1303
 netlink_broadcast_filtered+0x62/0x1280 net/netlink/af_netlink.c:1508
 netlink_broadcast net/netlink/af_netlink.c:1553 [inline]
 nlmsg_multicast include/net/netlink.h:968 [inline]
 nlmsg_notify+0xf7/0x1b0 net/netlink/af_netlink.c:2552
 __dev_notify_flags+0xe3/0x510 net/core/dev.c:7959
 rtnl_configure_link+0x21e/0x320 net/core/rtnetlink.c:2915
 veth_newlink+0x6f3/0xb70 drivers/net/veth.c:1311
 __rtnl_newlink net/core/rtnetlink.c:3230 [inline]
 rtnl_newlink+0x1511/0x2010 net/core/rtnetlink.c:3289
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881b673b380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881b673b400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881b673b480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff8881b673b500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881b673b580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
syz-executor.1 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
CPU: 1 PID: 4256 Comm: syz-executor.1 Tainted: G    B             5.4.233-syzkaller-00019-gd5ed2ca98e48 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 dump_header+0xd5/0x670 mm/oom_kill.c:460
 oom_kill_process+0xeb/0x2c0 mm/oom_kill.c:974
 out_of_memory+0x5e1/0x890 mm/oom_kill.c:1111
 mem_cgroup_out_of_memory+0x211/0x270 mm/memcontrol.c:1611
 memory_max_write+0x331/0x3c0 mm/memcontrol.c:6227
 cgroup_file_write+0x275/0x5c0 kernel/cgroup/cgroup.c:3898
 kernfs_fop_write+0x2e2/0x3e0 fs/kernfs/file.c:315
 __vfs_write+0x103/0x750 fs/read_write.c:494
 vfs_write+0x206/0x4e0 fs/read_write.c:558
 ksys_write+0x199/0x2c0 fs/read_write.c:611
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
memory: usage 10868kB, limit 0kB, failcnt 24
swap: usage 0kB, limit 9007199254740988kB, failcnt 0
Memory cgroup stats for /syz0:
anon 11038720
file 204800
kernel_stack 0
slab 0
sock 0
shmem 258048
file_mapped 270336
file_dirty 135168
file_writeback 0
anon_thp 0
inactive_anon 135168
active_anon 11218944
inactive_file 135168
active_file 0
unevictable 135168
slab_reclaimable 0
slab_unreclaimable 0
pgfault 279609
pgmajfault 0
workingset_refault 0
workingset_activate 0
workingset_nodereclaim 0
pgrefill 75
pgscan 77
pgsteal 43
pgactivate 297
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz1,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz-executor.0,pid=2472,uid=0
Memory cgroup out of memory: Killed process 2472 (syz-executor.0) total-vm:54800kB, anon-rss:4636kB, file-rss:14336kB, shmem-rss:0kB, UID:0 pgtables:92kB oom_score_adj:1000
syz-executor.1 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000
CPU: 0 PID: 4256 Comm: syz-executor.1 Tainted: G    B             5.4.233-syzkaller-00019-gd5ed2ca98e48 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x241 lib/dump_stack.c:118
 dump_header+0xd5/0x670 mm/oom_kill.c:460
 oom_kill_process+0xeb/0x2c0 mm/oom_kill.c:974
 out_of_memory+0x5e1/0x890 mm/oom_kill.c:1111
 mem_cgroup_out_of_memory+0x211/0x270 mm/memcontrol.c:1611
 memory_max_write+0x331/0x3c0 mm/memcontrol.c:6227
 cgroup_file_write+0x275/0x5c0 kernel/cgroup/cgroup.c:3898
 kernfs_fop_write+0x2e2/0x3e0 fs/kernfs/file.c:315
 __vfs_write+0x103/0x750 fs/read_write.c:494
 vfs_write+0x206/0x4e0 fs/read_write.c:558
 ksys_write+0x199/0x2c0 fs/read_write.c:611
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
memory: usage 6636kB, limit 0kB, failcnt 24
swap: usage 0kB, limit 9007199254740988kB, failcnt 0
Memory cgroup stats for /syz0:
anon 6811648
file 204800
kernel_stack 0
slab 0
sock 0
shmem 258048
file_mapped 270336
file_dirty 135168
file_writeback 0
anon_thp 0
inactive_anon 135168
active_anon 6893568
inactive_file 135168
active_file 0
unevictable 135168
slab_reclaimable 0
slab_unreclaimable 0
pgfault 279609
pgmajfault 0
workingset_refault 0
workingset_activate 0
workingset_nodereclaim 0
pgrefill 75
pgscan 77
pgsteal 43
pgactivate 297
oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz1,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz-executor.0,pid=2437,uid=0
Memory cgroup out of memory: Killed process 2437 (syz-executor.0) total-vm:54800kB, anon-rss:4636kB, file-rss:14336kB, shmem-rss:0kB, UID:0 pgtables:92kB oom_score_adj:1000