------------[ cut here ]------------ WARNING: CPU: 1 PID: 8730 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 1 PID: 8730 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4923 Modules linked in: CPU: 1 PID: 8730 Comm: syz.3.961 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 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:4923 lr : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4923 sp : ffff8000211b73d0 x29: ffff8000211b73d0 x28: ffff8000211b7500 x27: dfff800000000000 x26: 0000000000000000 x25: ffff800015380000 x24: 1ffff00002a70070 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000020200000 x19: ffff0000d47a1510 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082dbd38 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001add5d9b x12: 0000000000000000 x11: ff008000088a5100 x10: 0000000000000000 x9 : ffff8000088a5100 x8 : ffff0000cb3e1c00 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088a4f80 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:4923 __vma_adjust+0x458/0x16fc mm/mmap.c:737 vma_adjust include/linux/mm.h:2810 [inline] __split_vma+0x328/0x44c mm/mmap.c:-1 do_mas_align_munmap+0x5f4/0xf28 mm/mmap.c:2501 do_mas_munmap mm/mmap.c:2650 [inline] __mmap_region mm/mmap.c:2698 [inline] mmap_region+0x6a0/0x1860 mm/mmap.c:2916 do_mmap+0xa64/0x1210 mm/mmap.c:1436 vm_mmap_pgoff+0x194/0x298 mm/util.c:520 ksys_mmap_pgoff+0xd0/0x5a0 mm/mmap.c:1482 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0x108/0x120 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 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: 1476 hardirqs last enabled at (1475): [] kmem_cache_alloc_bulk+0x3c0/0x4e8 mm/slub.c:3873 hardirqs last disabled at (1476): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1452): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1450): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8730 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 1 PID: 8730 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4923 Modules linked in: CPU: 1 PID: 8730 Comm: syz.3.961 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 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:4923 lr : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4923 sp : ffff8000211b73d0 x29: ffff8000211b73d0 x28: ffff8000211b7500 x27: dfff800000000000 x26: 0000000000000000 x25: ffff800015380000 x24: 1ffff00002a70070 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000021000000 x19: ffff0000d47a1510 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082dbd38 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001add5d9b x12: 0000000000000000 x11: ff008000088a5100 x10: 0000000000000000 x9 : ffff8000088a5100 x8 : ffff0000cb3e1c00 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088a4f80 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:4923 __vma_adjust+0x464/0x16fc mm/mmap.c:738 vma_adjust include/linux/mm.h:2810 [inline] __split_vma+0x328/0x44c mm/mmap.c:-1 do_mas_align_munmap+0x5f4/0xf28 mm/mmap.c:2501 do_mas_munmap mm/mmap.c:2650 [inline] __mmap_region mm/mmap.c:2698 [inline] mmap_region+0x6a0/0x1860 mm/mmap.c:2916 do_mmap+0xa64/0x1210 mm/mmap.c:1436 vm_mmap_pgoff+0x194/0x298 mm/util.c:520 ksys_mmap_pgoff+0xd0/0x5a0 mm/mmap.c:1482 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0x108/0x120 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 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: 1588 hardirqs last enabled at (1587): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (1587): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (1588): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1582): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1582): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1479): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---