ffffa025b000-ffffc4ceefff: 0000000000000000
    ffffc4cef000-ffffc4d0ffff: ffff0000c630e140
    ffffc4d10000-ffffffffffffffff: 0000000000000000
------------[ cut here ]------------
WARNING: CPU: 0 PID: 8350 at mm/vma.c:768 vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768
Modules linked in:
CPU: 0 UID: 0 PID: 8350 Comm: syz.1.430 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768
lr : vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768
sp : ffff8000a1de7910
x29: ffff8000a1de7990 x28: dfff800000000000 x27: 0000000000000001
x26: 00000000205ac000 x25: ffff8000a1de7a80 x24: 00000000205ac000
x23: 1ffff000143bcf50 x22: ffff0000cdfe1b40 x21: 0000000020800000
x20: ffff0000cdfe1b40 x19: ffff8000a1de7a60 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008ad27e48 x15: ffff700011e740c0
x14: 1ffff00011e740c0 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700011e740c0 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000d0ee8000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a1de6ef8 x4 : ffff80008f415ba0 x3 : ffff800080548ef0
x2 : 0000000000000000 x1 : ffffffffffffffff x0 : ffffffffffffffff
Call trace:
 vma_merge_existing_range+0x14a8/0x1964 mm/vma.c:768 (P)
 vma_modify+0x7c/0x424 mm/vma.c:1564
 vma_modify_flags+0x18c/0x1dc mm/vma.c:1605
 mlock_fixup+0x18c/0x2c4 mm/mlock.c:483
 apply_mlockall_flags+0x290/0x344 mm/mlock.c:736
 __arm64_sys_munlockall+0x11c/0x238 mm/mlock.c:782
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 21482
hardirqs last  enabled at (21481): [<ffff80008055041c>] __up_console_sem kernel/printk/printk.c:344 [inline]
hardirqs last  enabled at (21481): [<ffff80008055041c>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885
hardirqs last disabled at (21482): [<ffff80008adb9eb8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511
softirqs last  enabled at (20712): [<ffff8000803cf71c>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (20712): [<ffff8000803cf71c>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (20581): [<ffff800080020efc>] __do_softirq+0x14/0x20 kernel/softirq.c:613
---[ end trace 0000000000000000 ]---