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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+0x6e6/0x750 mm/filemap.c:169
Read of size 4 at addr ffff8881eb30f488 by task syz-executor.0/21028

CPU: 1 PID: 21028 Comm: syz-executor.0 Tainted: G        W         5.4.242-syzkaller-00065-g10e0626a3202 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
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+0x6e6/0x750 mm/filemap.c:169
 __delete_from_page_cache+0xd0/0x600 mm/filemap.c:237
 __remove_mapping+0x4a2/0x590 mm/vmscan.c:978
 shrink_page_list+0x22f9/0x42c0 mm/vmscan.c:1482
 shrink_inactive_list+0x533/0xfe0 mm/vmscan.c:2001
 shrink_list mm/vmscan.c:2293 [inline]
 shrink_node_memcg+0xc42/0x2430 mm/vmscan.c:2623
 shrink_node+0x389/0x14a0 mm/vmscan.c:2836
 shrink_zones mm/vmscan.c:3053 [inline]
 do_try_to_free_pages+0x63f/0x12b0 mm/vmscan.c:3111
 try_to_free_mem_cgroup_pages+0x3f6/0x9b0 mm/vmscan.c:3412
 memory_high_write+0x176/0x260 mm/memcontrol.c:6177
 cgroup_file_write+0x275/0x5f0 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

The buggy address belongs to the page:
page:ffffea0007acc3c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x8000000000000000()
raw: 8000000000000000 ffffea00079d2808 ffffea0007acc388 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO)
 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+0x2d13/0x2d90 mm/page_alloc.c:3794
 __alloc_pages_nodemask+0x393/0x840 mm/page_alloc.c:4891
 __vmalloc_area_node mm/vmalloc.c:2431 [inline]
 __vmalloc_node_range+0x384/0x710 mm/vmalloc.c:2499
 __vmalloc_node mm/vmalloc.c:2554 [inline]
 __vmalloc_node_flags mm/vmalloc.c:2568 [inline]
 vzalloc+0x70/0x80 mm/vmalloc.c:2613
 __do_replace+0xc9/0xac0 net/ipv4/netfilter/ip_tables.c:1049
 do_replace net/ipv4/netfilter/ip_tables.c:1140 [inline]
 do_ipt_set_ctl+0x404/0x600 net/ipv4/netfilter/ip_tables.c:1674
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x28f/0x2b0 net/netfilter/nf_sockopt.c:115
 __sys_setsockopt+0x4b4/0x840 net/socket.c:2074
 __do_sys_setsockopt net/socket.c:2090 [inline]
 __se_sys_setsockopt net/socket.c:2087 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2087
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1176 [inline]
 free_pcp_prepare mm/page_alloc.c:1233 [inline]
 free_unref_page_prepare+0x297/0x380 mm/page_alloc.c:3085
 free_unref_page mm/page_alloc.c:3134 [inline]
 free_the_page mm/page_alloc.c:4951 [inline]
 __free_pages+0xaf/0x140 mm/page_alloc.c:4959
 __vunmap+0x75b/0x890 mm/vmalloc.c:2260
 __do_replace+0x855/0xac0 net/ipv4/netfilter/ip_tables.c:1088
 do_replace net/ipv4/netfilter/ip_tables.c:1140 [inline]
 do_ipt_set_ctl+0x404/0x600 net/ipv4/netfilter/ip_tables.c:1674
 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline]
 nf_setsockopt+0x28f/0x2b0 net/netfilter/nf_sockopt.c:115
 __sys_setsockopt+0x4b4/0x840 net/socket.c:2074
 __do_sys_setsockopt net/socket.c:2090 [inline]
 __se_sys_setsockopt net/socket.c:2087 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2087
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1

Memory state around the buggy address:
 ffff8881eb30f380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881eb30f400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8881eb30f480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                      ^
 ffff8881eb30f500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8881eb30f580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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