------------[ cut here ]------------ WARNING: CPU: 1 PID: 6444 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 1 PID: 6444 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4920 Modules linked in: CPU: 1 PID: 6444 Comm: syz.0.626 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 : ffff800020f67510 x29: ffff800020f67510 x28: dfff800000000000 x27: 0000000021000000 x26: ffff0000f5cc6948 x25: ffff800015200000 x24: 1ffff00002a40070 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000020c00000 x19: ffff0000f5cc6948 x18: ffff800011b7bf60 x17: 1fffe00033eaed7e x16: ffff8000082d7e60 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001a52319b x12: 0000000000080000 x11: 0000000000008419 x10: ffff800024909000 x9 : ffff8000088961f0 x8 : 000000000000841a 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: 8776 hardirqs last enabled at (8775): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (8775): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (8776): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (8434): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (8432): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6444 at include/linux/fs.h:503 i_mmap_assert_write_locked include/linux/fs.h:503 [inline] WARNING: CPU: 1 PID: 6444 at include/linux/fs.h:503 hugetlb_split+0x234/0x29c mm/hugetlb.c:4920 Modules linked in: CPU: 1 PID: 6444 Comm: syz.0.626 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 : ffff800020f67510 x29: ffff800020f67510 x28: dfff800000000000 x27: 0000000021000000 x26: ffff0000f5cc6948 x25: ffff800015200000 x24: 1ffff00002a40070 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000021000000 x19: ffff0000f5cc6948 x18: ffff800011b7bf60 x17: 1fffe00033eaed7e x16: ffff8000082d7e60 x15: 0000000000000000 x14: 0000000000000001 x13: 1fffe0001a52319b x12: 0000000000080000 x11: 000000000001f20b x10: ffff800024909000 x9 : ffff8000088961f0 x8 : 000000000001f20c 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: 8796 hardirqs last enabled at (8795): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (8795): [] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (8796): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (8790): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (8790): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (8779): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- netlink: 76 bytes leftover after parsing attributes in process `syz.0.626'.