7edf1000-7edf1fff: 847f8300
  7edf2000-7edf5fff: 847f8280
  7edf6000-7edf6fff: 847f8180
  7edf7000-ffffffff: 00000000
------------[ cut here ]------------
WARNING: CPU: 1 PID: 17314 at mm/vma.c:768 vma_merge_existing_range+0x174/0x800 mm/vma.c:768
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 1 UID: 0 PID: 17314 Comm: syz.0.3031 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<802019e4>] (dump_backtrace) from [<80201ae0>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:828227fc r5:00000000 r4:82257fc8
[<80201ac8>] (show_stack) from [<8021ff7c>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201ac8>] (show_stack) from [<8021ff7c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021ff28>] (dump_stack_lvl) from [<8021ffbc>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a70d4c
[<8021ffa4>] (dump_stack) from [<802025f8>] (panic+0x120/0x374 kernel/panic.c:354)
[<802024d8>] (panic) from [<802619e8>] (check_panic_on_warn kernel/panic.c:243 [inline])
[<802024d8>] (panic) from [<802619e8>] (get_taint+0x0/0x1c kernel/panic.c:238)
 r3:8280c604 r2:00000001 r1:8223eb90 r0:82246690
 r7:804ee088
[<80261974>] (check_panic_on_warn) from [<80261b4c>] (__warn+0x80/0x188 kernel/panic.c:749)
[<80261acc>] (__warn) from [<80261dcc>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:776)
 r8:00000009 r7:8227315c r6:e08edde4 r5:844dc800 r4:00000000
[<80261c58>] (warn_slowpath_fmt) from [<804ee088>] (vma_merge_existing_range+0x174/0x800 mm/vma.c:768)
 r10:00000001 r9:20800000 r8:20000000 r7:847f8980 r6:00000001 r5:847f8980
 r4:e08ede88
[<804edf14>] (vma_merge_existing_range) from [<804ef364>] (vma_modify+0x20/0x114 mm/vma.c:1564)
 r10:84ee6d00 r9:00102077 r8:00100077 r7:20000000 r6:20800000 r5:847f8980
 r4:e08ede88
[<804ef344>] (vma_modify) from [<804f04bc>] (vma_modify_flags+0xb4/0xd8 mm/vma.c:1605)
 r7:e08edf3c r6:847f8980 r5:00000000 r4:847f8980
[<804f0408>] (vma_modify_flags) from [<804d32a0>] (mlock_fixup+0x90/0x260 mm/mlock.c:483)
 r7:20000000 r6:00000000 r5:e08edf38 r4:847f8980
[<804d3210>] (mlock_fixup) from [<804d3960>] (apply_mlockall_flags+0xdc/0x134 mm/mlock.c:736)
 r10:00000099 r9:844dc800 r8:8020029c r7:00000099 r6:844dc800 r5:00000000
 r4:847f8980
[<804d3884>] (apply_mlockall_flags) from [<804d5c80>] (sys_munlockall+0x70/0x104 mm/mlock.c:782)
 r6:844dc800 r5:00000000 r4:84ee6d00
[<804d5c10>] (sys_munlockall) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xe08edfa8 to 0xe08edff0)
dfa0:                   00000000 00000000 00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 0012fee0 00000099 002d0000 00000000 00006364 76b340bc
dfe0: 76b33ec0 76b33eb0 0001939c 00131f30
 r7:00000099 r6:0012fee0 r5:00000000 r4:00000000
Rebooting in 86400 seconds..