------------[ cut here ]------------ WARNING: CPU: 0 PID: 7756 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 0 PID: 7756 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4920 Modules linked in: CPU: 0 PID: 7756 Comm: syz.4.602 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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:4920 lr : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4920 sp : ffff800021927510 x29: ffff800021927510 x28: dfff800000000000 x27: 0000000021000000 x26: ffff0000e400bd80 x25: ffff800015200000 x24: 1ffff00002a40070 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000020c00000 x19: ffff0000e400bd80 x18: 0000000000000000 x17: ffff80000885e710 x16: ffff8000082d7e60 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001a35319b x12: 0000000000080000 x11: 0000000000001999 x10: ffff80002432a000 x9 : ffff8000088961f0 x8 : 000000000000199a x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff800008896070 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:4920 __vma_adjust+0x3a0/0x1724 mm/mmap.c:737 vma_adjust include/linux/mm.h:2810 [inline] __split_vma+0x324/0x444 mm/mmap.c:-1 madvise_update_vma+0x380/0xa40 mm/madvise.c:168 madvise_vma_behavior mm/madvise.c:1090 [inline] madvise_walk_vmas mm/madvise.c:1259 [inline] do_madvise+0xf7c/0x28e4 mm/madvise.c:1438 __do_sys_madvise mm/madvise.c:1451 [inline] __se_sys_madvise mm/madvise.c:1449 [inline] __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1449 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 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: 177254 hardirqs last enabled at (177253): [] kmem_cache_alloc_bulk+0x3bc/0x4e4 mm/slub.c:3873 hardirqs last disabled at (177254): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (177226): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (177224): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7756 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 0 PID: 7756 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4920 Modules linked in: CPU: 0 PID: 7756 Comm: syz.4.602 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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:4920 lr : i_mmap_assert_write_locked include/linux/fs.h:503 [inline] lr : hugetlb_split+0x234/0x29c mm/hugetlb.c:4920 sp : ffff800021927510 x29: ffff800021927510 x28: dfff800000000000 x27: 0000000021000000 x26: ffff0000e400bd80 x25: ffff800015200000 x24: 1ffff00002a40070 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000021000000 x19: ffff0000e400bd80 x18: 0000000000000000 x17: ffff80000885e710 x16: ffff8000082d7e60 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001a35319b x12: 0000000000080000 x11: 000000000001a81e x10: ffff80002432a000 x9 : ffff8000088961f0 x8 : 000000000001a81f x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : ffff800008896070 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:4920 __vma_adjust+0x3ac/0x1724 mm/mmap.c:738 vma_adjust include/linux/mm.h:2810 [inline] __split_vma+0x324/0x444 mm/mmap.c:-1 madvise_update_vma+0x380/0xa40 mm/madvise.c:168 madvise_vma_behavior mm/madvise.c:1090 [inline] madvise_walk_vmas mm/madvise.c:1259 [inline] do_madvise+0xf7c/0x28e4 mm/madvise.c:1438 __do_sys_madvise mm/madvise.c:1451 [inline] __se_sys_madvise mm/madvise.c:1449 [inline] __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1449 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 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: 177356 hardirqs last enabled at (177355): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (177355): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (177356): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (177350): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (177350): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (177257): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- netlink: 104 bytes leftover after parsing attributes in process `syz.4.602'.