------------[ cut here ]------------ WARNING: CPU: 0 PID: 3105 at mm/highmem.c:622 kunmap_local_indexed+0x210/0x228 mm/highmem.c:622 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 0 UID: 0 PID: 3105 Comm: syz-executor699 Not tainted 6.15.0-rc5-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 r4:82257c34 [<80201ac8>] (show_stack) from [<80220020>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201ac8>] (show_stack) from [<80220020>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120) [<8021ffcc>] (dump_stack_lvl) from [<80220060>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:82a70d4c [<80220048>] (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 r1:8223e7fc r0:822462fc r7:804c6318 [<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 r7:82271710 r6:df9add1c r5:84220c00 r4:00000000 [<80261c58>] (warn_slowpath_fmt) from [<804c6318>] (kunmap_local_indexed+0x210/0x228 mm/highmem.c:622) r10:00000000 r9:debcbe60 r8:deb6ca80 r7:00a00000 r6:00000003 r5:84220c00 r4:ffefd000 [<804c6108>] (kunmap_local_indexed) from [<8053ffac>] (__kunmap_local include/linux/highmem-internal.h:94 [inline]) [<804c6108>] (kunmap_local_indexed) from [<8053ffac>] (move_pages_pte mm/userfaultfd.c:1420 [inline]) [<804c6108>] (kunmap_local_indexed) from [<8053ffac>] (move_pages+0xb60/0x18d4 mm/userfaultfd.c:1831) r7:00a00000 r6:00000000 r5:84952c94 r4:8460d200 [<8053f44c>] (move_pages) from [<805c1830>] (userfaultfd_move fs/userfaultfd.c:1898 [inline]) [<8053f44c>] (move_pages) from [<805c1830>] (userfaultfd_ioctl+0xf6c/0x20c0 fs/userfaultfd.c:2021) r10:8460d200 r9:df9ade98 r8:21000000 r7:00000001 r6:00000000 r5:20000040 r4:84920000 [<805c08c4>] (userfaultfd_ioctl) from [<8056b530>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<805c08c4>] (userfaultfd_ioctl) from [<8056b530>] (do_vfs_ioctl fs/ioctl.c:860 [inline]) [<805c08c4>] (userfaultfd_ioctl) from [<8056b530>] (__do_sys_ioctl fs/ioctl.c:904 [inline]) [<805c08c4>] (userfaultfd_ioctl) from [<8056b530>] (sys_ioctl+0x138/0xd84 fs/ioctl.c:892) r10:84220c00 r9:00000003 r8:84499480 r7:20000040 r6:84499480 r5:00000000 r4:c028aa05 [<8056b3f8>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xdf9adfa8 to 0xdf9adff0) dfa0: ffffffff 00000000 00000003 c028aa05 20000040 00000000 dfc0: ffffffff 00000000 0008e050 00000036 20ffd000 00000000 20000000 0008a270 dfe0: 7ea54c70 7ea54c60 00010694 0002e7e0 r10:00000036 r9:84220c00 r8:8020029c r7:00000036 r6:0008e050 r5:00000000 r4:ffffffff Rebooting in 86400 seconds..