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BUG: KCSAN: data-race in __pagevec_lru_add_fn / do_tcp_sendpages

write to 0xffffea00049198c8 of 8 bytes by task 7207 on cpu 0:
 __list_add include/linux/list.h:73 [inline]
 list_add include/linux/list.h:88 [inline]
 lruvec_add_folio include/linux/mm_inline.h:102 [inline]
 __pagevec_lru_add_fn+0x2ae/0x380 mm/swap.c:1053
 __pagevec_lru_add+0x1c3/0x270 mm/swap.c:1071
 folio_add_lru+0x11a/0x160 mm/swap.c:469
 lru_cache_add+0x37/0x50 mm/folio-compat.c:108
 lru_cache_add_inactive_or_unevictable+0x46/0x140 mm/swap.c:500
 wp_page_copy+0x779/0x10e0 mm/memory.c:3070
 do_wp_page+0x4fb/0xa80
 handle_pte_fault mm/memory.c:4592 [inline]
 __handle_mm_fault mm/memory.c:4709 [inline]
 handle_mm_fault+0x975/0x1590 mm/memory.c:4807
 do_user_addr_fault+0x617/0xb90 arch/x86/mm/fault.c:1397
 handle_page_fault arch/x86/mm/fault.c:1484 [inline]
 exc_page_fault+0x91/0x290 arch/x86/mm/fault.c:1540
 asm_exc_page_fault+0x1e/0x30

read to 0xffffea00049198c8 of 8 bytes by task 7204 on cpu 1:
 page_is_pfmemalloc include/linux/mm.h:1753 [inline]
 __skb_fill_page_desc include/linux/skbuff.h:2258 [inline]
 skb_fill_page_desc include/linux/skbuff.h:2279 [inline]
 tcp_build_frag net/ipv4/tcp.c:981 [inline]
 do_tcp_sendpages+0xa52/0x13c0 net/ipv4/tcp.c:1038
 tcp_sendpage_locked net/ipv4/tcp.c:1103 [inline]
 tcp_sendpage+0x89/0xb0 net/ipv4/tcp.c:1113
 inet_sendpage+0x7f/0xc0 net/ipv4/af_inet.c:833
 kernel_sendpage+0x187/0x200 net/socket.c:3492
 sock_sendpage+0x5a/0x70 net/socket.c:1007
 pipe_to_sendpage+0x128/0x160 fs/splice.c:364
 splice_from_pipe_feed fs/splice.c:418 [inline]
 __splice_from_pipe+0x207/0x500 fs/splice.c:562
 splice_from_pipe fs/splice.c:597 [inline]
 generic_splice_sendpage+0x94/0xd0 fs/splice.c:746
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x80/0xa0 fs/splice.c:936
 splice_direct_to_actor+0x345/0x650 fs/splice.c:891
 do_splice_direct+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000000000000000 -> 0xffffea00048b0d88

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7204 Comm: syz-executor.1 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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Invalid ELF header type: 3 != 1