loop3: detected capacity change from 0 to 512
EXT4-fs (loop3): ea_inode feature is not supported for Hurd
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BUG: KCSAN: data-race in mlock_new_folio / need_mlock_drain

read-write to 0xffff888237c2b370 of 1 bytes by task 8847 on cpu 0:
 folio_batch_add include/linux/pagevec.h:77 [inline]
 mlock_new_folio+0x114/0x200 mm/mlock.c:280
 folio_add_lru_vma+0x5d/0x60 mm/swap.c:544
 do_anonymous_page mm/memory.c:4604 [inline]
 do_pte_missing mm/memory.c:3945 [inline]
 handle_pte_fault mm/memory.c:5522 [inline]
 __handle_mm_fault mm/memory.c:5665 [inline]
 handle_mm_fault+0x2372/0x2940 mm/memory.c:5833
 faultin_page mm/gup.c:1194 [inline]
 __get_user_pages+0x499/0x10d0 mm/gup.c:1493
 populate_vma_page_range mm/gup.c:1932 [inline]
 __mm_populate+0x25b/0x3b0 mm/gup.c:2035
 mm_populate include/linux/mm.h:3415 [inline]
 __do_sys_mremap mm/mremap.c:1200 [inline]
 __se_sys_mremap+0x960/0xf20 mm/mremap.c:993
 __x64_sys_mremap+0x67/0x80 mm/mremap.c:993
 x64_sys_call+0x2747/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:26
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888237c2b370 of 1 bytes by task 8896 on cpu 1:
 folio_batch_count include/linux/pagevec.h:56 [inline]
 need_mlock_drain+0x30/0x50 mm/mlock.c:235
 cpu_needs_drain mm/swap.c:824 [inline]
 __lru_add_drain_all+0x235/0x410 mm/swap.c:912
 lru_add_drain_all+0x10/0x20 mm/swap.c:928
 invalidate_bdev+0x47/0x70 block/bdev.c:100
 __ext4_fill_super fs/ext4/super.c:5639 [inline]
 ext4_fill_super+0x6f3/0x39e0 fs/ext4/super.c:5664
 get_tree_bdev+0x256/0x2e0 fs/super.c:1635
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5696
 vfs_get_tree+0x56/0x1d0 fs/super.c:1800
 do_new_mount+0x227/0x690 fs/namespace.c:3472
 path_mount+0x49b/0xb30 fs/namespace.c:3799
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x27c/0x2d0 fs/namespace.c:3997
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3997
 x64_sys_call+0x203e/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x15 -> 0x1c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 8896 Comm: syz.3.1159 Not tainted 6.11.0-rc3-syzkaller-00271-g85652baa895b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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