================================================================== BUG: KCSAN: data-race in folio_mapping / page_cache_delete write to 0xffffea00049e2458 of 8 bytes by task 26913 on cpu 0: page_cache_delete+0x30d/0x360 mm/filemap.c:143 __filemap_remove_folio+0x3b/0xf0 mm/filemap.c:223 invalidate_complete_folio2 mm/truncate.c:594 [inline] invalidate_inode_pages2_range+0x450/0x670 mm/truncate.c:682 generic_file_direct_write+0x209/0x400 mm/filemap.c:3691 __generic_file_write_iter+0x11f/0x280 mm/filemap.c:3863 generic_file_write_iter+0x75/0x130 mm/filemap.c:3939 do_iter_readv_writev+0x27b/0x300 do_iter_write+0x16f/0x5c0 fs/read_write.c:868 vfs_iter_write+0x4c/0x70 fs/read_write.c:909 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x660 fs/splice.c:891 do_splice_direct+0xfb/0x180 fs/splice.c:979 do_sendfile+0x3ad/0x900 fs/read_write.c:1262 __do_sys_sendfile64 fs/read_write.c:1327 [inline] __se_sys_sendfile64 fs/read_write.c:1313 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1313 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 read to 0xffffea00049e2458 of 8 bytes by task 26911 on cpu 1: folio_mapping+0x92/0x120 mm/util.c:806 folio_evictable mm/internal.h:136 [inline] __pagevec_lru_add_fn+0x134/0x520 mm/swap.c:1024 __pagevec_lru_add+0x1c6/0x320 mm/swap.c:1060 lru_add_drain_cpu+0x6a/0x260 mm/swap.c:601 lru_add_drain+0x21/0x60 mm/swap.c:706 __pagevec_release+0x3a/0x70 mm/swap.c:997 pagevec_release include/linux/pagevec.h:82 [inline] __filemap_fdatawait_range+0x1f1/0x260 mm/filemap.c:527 filemap_fdatawait_range mm/filemap.c:551 [inline] filemap_write_and_wait_range+0x14d/0x2e0 mm/filemap.c:682 __generic_file_write_iter+0x19d/0x280 mm/filemap.c:3893 generic_file_write_iter+0x75/0x130 mm/filemap.c:3939 do_iter_readv_writev+0x27b/0x300 do_iter_write+0x16f/0x5c0 fs/read_write.c:868 vfs_iter_write+0x4c/0x70 fs/read_write.c:909 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:689 do_splice_from fs/splice.c:767 [inline] direct_splice_actor+0x80/0xa0 fs/splice.c:936 splice_direct_to_actor+0x345/0x660 fs/splice.c:891 do_splice_direct+0xfb/0x180 fs/splice.c:979 do_sendfile+0x3ad/0x900 fs/read_write.c:1262 __do_sys_sendfile64 fs/read_write.c:1327 [inline] __se_sys_sendfile64 fs/read_write.c:1313 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1313 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 value changed: 0xffff888134deae50 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 26911 Comm: syz-executor.5 Tainted: G W 5.19.0-rc3-syzkaller-00279-g8c23f235a6a8-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================