------------[ cut here ]------------ WARNING: CPU: 0 PID: 8731 at include/linux/fs.h:509 i_mmap_assert_write_locked include/linux/fs.h:509 [inline] WARNING: CPU: 0 PID: 8731 at include/linux/fs.h:509 hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 Modules linked in: CPU: 0 PID: 8731 Comm: syz.3.1414 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 lr : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 sp : ffff8000233a7530 x29: ffff8000233a7530 x28: ffff8000233a7660 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000163e0000 x24: 1ffff00002c7c072 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000020400000 x19: ffff0000cae3c288 x18: 0000000000000000 x17: ffff800008815950 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001af4261b x12: 0000000000080000 x11: 0000000000001c72 x10: ffff80002c6f4000 x9 : ffff8000088ac3c8 x8 : 0000000000001c73 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088ac248 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:509 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 __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:2509 do_mas_munmap mm/mmap.c:2658 [inline] do_munmap+0x1d4/0x244 mm/mmap.c:2672 mremap_to+0x1f8/0x464 mm/mremap.c:878 __do_sys_mremap mm/mremap.c:1030 [inline] __se_sys_mremap mm/mremap.c:947 [inline] __arm64_sys_mremap+0x5e0/0xee4 mm/mremap.c:947 __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+0x58/0x12c 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:589 irq event stamp: 544 hardirqs last enabled at (543): [] kmem_cache_alloc_bulk+0x3c0/0x4e8 mm/slub.c:3880 hardirqs last disabled at (544): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (512): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (510): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 i_mmap_assert_write_locked include/linux/fs.h:509 [inline] WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 Modules linked in: CPU: 1 PID: 8731 Comm: syz.3.1414 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 lr : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 sp : ffff8000233a7530 x29: ffff8000233a7530 x28: ffff8000233a7660 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000163e0000 x24: 1ffff00002c7c072 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000021000000 x19: ffff0000cae3c288 x18: 0000000000000000 x17: ffff800008815950 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001af4261b x12: 0000000000080000 x11: 0000000000018a7e x10: ffff80002c6f4000 x9 : ffff8000088ac3c8 x8 : 0000000000018a7f x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088ac248 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:509 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 __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:2509 do_mas_munmap mm/mmap.c:2658 [inline] do_munmap+0x1d4/0x244 mm/mmap.c:2672 mremap_to+0x1f8/0x464 mm/mremap.c:878 __do_sys_mremap mm/mremap.c:1030 [inline] __se_sys_mremap mm/mremap.c:947 [inline] __arm64_sys_mremap+0x5e0/0xee4 mm/mremap.c:947 __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+0x58/0x12c 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:589 irq event stamp: 614 hardirqs last enabled at (613): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (613): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (614): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (608): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (608): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (547): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 i_mmap_assert_write_locked include/linux/fs.h:509 [inline] WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 Modules linked in: CPU: 1 PID: 8731 Comm: syz.3.1414 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 lr : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 sp : ffff8000233a7530 x29: ffff8000233a7530 x28: ffff8000233a7660 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000163e0000 x24: 1ffff00002c7c072 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000020400000 x19: ffff0000cae3c288 x18: 0000000000000000 x17: ffff800008815950 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001af4261b x12: 0000000000080000 x11: 00000000000377e6 x10: ffff80002c6f4000 x9 : ffff8000088ac3c8 x8 : 00000000000377e7 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088ac248 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:509 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 __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+0x2e4/0xf28 mm/mmap.c:2488 do_mas_munmap mm/mmap.c:2658 [inline] do_munmap+0x1d4/0x244 mm/mmap.c:2672 mremap_to+0x248/0x464 mm/mremap.c:884 __do_sys_mremap mm/mremap.c:1030 [inline] __se_sys_mremap mm/mremap.c:947 [inline] __arm64_sys_mremap+0x5e0/0xee4 mm/mremap.c:947 __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+0x58/0x12c 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:589 irq event stamp: 976 hardirqs last enabled at (975): [] kmem_cache_alloc_bulk+0x3c0/0x4e8 mm/slub.c:3880 hardirqs last disabled at (976): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (870): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (870): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (617): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 i_mmap_assert_write_locked include/linux/fs.h:509 [inline] WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 Modules linked in: CPU: 1 PID: 8731 Comm: syz.3.1414 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 lr : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 sp : ffff8000233a7530 x29: ffff8000233a7530 x28: ffff8000233a7660 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000163e0000 x24: 1ffff00002c7c072 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000020c00000 x19: ffff0000cae3c288 x18: 0000000000000000 x17: ffff800008815950 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001af4261b x12: 0000000000080000 x11: 000000000004e32b x10: ffff80002c6f4000 x9 : ffff8000088ac3c8 x8 : 000000000004e32c x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088ac248 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:509 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 __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+0x2e4/0xf28 mm/mmap.c:2488 do_mas_munmap mm/mmap.c:2658 [inline] do_munmap+0x1d4/0x244 mm/mmap.c:2672 mremap_to+0x248/0x464 mm/mremap.c:884 __do_sys_mremap mm/mremap.c:1030 [inline] __se_sys_mremap mm/mremap.c:947 [inline] __arm64_sys_mremap+0x5e0/0xee4 mm/mremap.c:947 __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+0x58/0x12c 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:589 irq event stamp: 1242 hardirqs last enabled at (1241): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (1241): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (1242): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1236): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1236): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (979): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 i_mmap_assert_write_locked include/linux/fs.h:509 [inline] WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 Modules linked in: CPU: 1 PID: 8731 Comm: syz.3.1414 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 lr : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 sp : ffff8000233a73d0 x29: ffff8000233a73d0 x28: ffff8000233a7500 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000163e0000 x24: 1ffff00002c7c072 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000020400000 x19: ffff0000cae3c288 x18: 0000000000000000 x17: ffff800008824718 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001af4261b x12: 0000000000080000 x11: 00000000000709b8 x10: ffff80002c6f4000 x9 : ffff8000088ac3c8 x8 : 00000000000709b9 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088ac248 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:509 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 __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+0x2e4/0xf28 mm/mmap.c:2488 do_mas_munmap mm/mmap.c:2658 [inline] do_munmap+0x1d4/0x244 mm/mmap.c:2672 move_vma+0x7c8/0xb80 mm/mremap.c:761 mremap_to+0x3e8/0x464 mm/mremap.c:919 __do_sys_mremap mm/mremap.c:1030 [inline] __se_sys_mremap mm/mremap.c:947 [inline] __arm64_sys_mremap+0x5e0/0xee4 mm/mremap.c:947 __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+0x58/0x12c 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:589 irq event stamp: 1462 hardirqs last enabled at (1461): [] kmem_cache_alloc_bulk+0x3c0/0x4e8 mm/slub.c:3880 hardirqs last disabled at (1462): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1298): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1298): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1245): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 i_mmap_assert_write_locked include/linux/fs.h:509 [inline] WARNING: CPU: 1 PID: 8731 at include/linux/fs.h:509 hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 Modules linked in: CPU: 1 PID: 8731 Comm: syz.3.1414 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] pc : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 lr : i_mmap_assert_write_locked include/linux/fs.h:509 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 sp : ffff8000233a73d0 x29: ffff8000233a73d0 x28: ffff8000233a7500 x27: dfff800000000000 x26: 0000000000000000 x25: ffff8000163e0000 x24: 1ffff00002c7c072 x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000 x20: 0000000020800000 x19: ffff0000cae3c288 x18: 0000000000000000 x17: ffff800008824718 x16: ffff8000082dce18 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001af4261b x12: 0000000000080000 x11: 000000000007ffff x10: ffff80002c6f4000 x9 : ffff8000088ac3c8 x8 : 0000000000080000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff8000088ac248 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: i_mmap_assert_write_locked include/linux/fs.h:509 [inline] hugetlb_split+0x234/0x29c mm/hugetlb.c:4908 __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+0x2e4/0xf28 mm/mmap.c:2488 do_mas_munmap mm/mmap.c:2658 [inline] do_munmap+0x1d4/0x244 mm/mmap.c:2672 move_vma+0x7c8/0xb80 mm/mremap.c:761 mremap_to+0x3e8/0x464 mm/mremap.c:919 __do_sys_mremap mm/mremap.c:1030 [inline] __se_sys_mremap mm/mremap.c:947 [inline] __arm64_sys_mremap+0x5e0/0xee4 mm/mremap.c:947 __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+0x58/0x12c 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:589 irq event stamp: 1814 hardirqs last enabled at (1813): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (1813): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (1814): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1808): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (1808): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (1465): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---