------------[ cut here ]------------ WARNING: CPU: 1 PID: 5083 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 1 PID: 5083 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 Modules linked in: CPU: 1 PID: 5083 Comm: syz.3.138 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 lr : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 sp : ffff8000216b7850 x29: ffff8000216b7850 x28: dfff800000000000 x27: ffff7000042d6f24 x26: ffff0000eb4ce360 x25: ffff8000150c0000 x24: 1ffff00002a180b0 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000020400000 x19: ffff0000eb4ce360 x18: 0000000000000000 x17: ffff8000087f1eec x16: ffff8000082d0e30 x15: ffff8000088a6dec x14: 00000000ffff8000 x13: 000000005d216cce x12: 0000000000080000 x11: 00000000000024dc x10: ffff800028caf000 x9 : ffff8000088884f4 x8 : 00000000000024dd x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff800008888374 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:503 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 __vma_adjust+0x450/0x16c0 mm/mmap.c:737 vma_adjust include/linux/mm.h:2756 [inline] __split_vma+0x324/0x448 mm/mmap.c:-1 split_vma+0xa0/0xf8 mm/mmap.c:2424 mbind_range+0x490/0x6ec mm/mempolicy.c:829 do_mbind mm/mempolicy.c:1324 [inline] kernel_mbind mm/mempolicy.c:1481 [inline] __do_sys_mbind mm/mempolicy.c:1558 [inline] __se_sys_mbind mm/mempolicy.c:1554 [inline] __arm64_sys_mbind+0x5f8/0x7e8 mm/mempolicy.c:1554 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 8090 hardirqs last enabled at (8089): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (8089): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (8090): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (8056): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (8054): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5083 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 1 PID: 5083 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 Modules linked in: CPU: 1 PID: 5083 Comm: syz.3.138 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 lr : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 sp : ffff8000216b7850 x29: ffff8000216b7850 x28: dfff800000000000 x27: ffff7000042d6f24 x26: ffff0000eb4ce360 x25: ffff8000150c0000 x24: 1ffff00002a180b0 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000020600000 x19: ffff0000eb4ce360 x18: 0000000000000000 x17: ffff8000087f1eec x16: ffff8000082d0e30 x15: ffff8000088a6dec x14: 00000000ffff8000 x13: 000000005d216cce x12: 0000000000080000 x11: 000000000007ffff x10: ffff800028caf000 x9 : ffff8000088884f4 x8 : 0000000000080000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff800008888374 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:503 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4917 __vma_adjust+0x45c/0x16c0 mm/mmap.c:738 vma_adjust include/linux/mm.h:2756 [inline] __split_vma+0x324/0x448 mm/mmap.c:-1 split_vma+0xa0/0xf8 mm/mmap.c:2424 mbind_range+0x490/0x6ec mm/mempolicy.c:829 do_mbind mm/mempolicy.c:1324 [inline] kernel_mbind mm/mempolicy.c:1481 [inline] __do_sys_mbind mm/mempolicy.c:1558 [inline] __se_sys_mbind mm/mempolicy.c:1554 [inline] __arm64_sys_mbind+0x5f8/0x7e8 mm/mempolicy.c:1554 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 8270 hardirqs last enabled at (8269): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (8269): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (8270): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (8264): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (8264): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (8093): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---