------------[ cut here ]------------ WARNING: CPU: 1 PID: 3005 at mm/highmem.c:611 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 PID: 3005 Comm: syz-executor247 Not tainted 6.10.0-rc2-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<818d4178>] (dump_backtrace) from [<818d4274>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:82622d44 r5:00000000 r4:81fe12b8 [<818d425c>] (show_stack) from [<818f189c>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818d425c>] (show_stack) from [<818f189c>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114) [<818f1848>] (dump_stack_lvl) from [<818f18dc>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:8285fd18 [<818f18c4>] (dump_stack) from [<818d4d1c>] (panic+0x120/0x358 kernel/panic.c:347) [<818d4bfc>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline]) [<818d4bfc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235) r3:8260c5c4 r2:00000001 r1:81fc9f28 r0:81fd1b78 r7:80481370 [<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693) [<80243f44>] (__warn) from [<8024423c>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:718) r8:00000009 r7:81ff8910 r6:df981d14 r5:840e4800 r4:00000000 [<802440c8>] (warn_slowpath_fmt) from [<80481370>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:611) r10:ffedc0a8 r9:84139b00 r8:20508000 r7:fffffffe r6:00000003 r5:840e4800 r4:ffedc000 [<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (__kunmap_local include/linux/highmem-internal.h:94 [inline]) [<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (move_pages_pte mm/userfaultfd.c:1332 [inline]) [<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (move_pages+0x7e8/0x14a0 mm/userfaultfd.c:1733) r7:fffffffe r6:00000000 r5:84633810 r4:ffeda840 [<804f2410>] (move_pages) from [<8056b0f8>] (userfaultfd_move fs/userfaultfd.c:2016 [inline]) [<804f2410>] (move_pages) from [<8056b0f8>] (userfaultfd_ioctl+0x1278/0x2314 fs/userfaultfd.c:2134) r10:20c16000 r9:df981e98 r8:20000080 r7:84139b00 r6:00000001 r5:00000000 r4:844e1000 [<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (do_vfs_ioctl fs/ioctl.c:861 [inline]) [<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (__do_sys_ioctl fs/ioctl.c:905 [inline]) [<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893) r10:840e4800 r9:00000003 r8:844d2c00 r7:20000080 r6:844d2c00 r5:00000000 r4:c028aa05 [<8051a568>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xdf981fa8 to 0xdf981ff0) 1fa0: ffffffff 00000000 00000003 c028aa05 20000080 0000011a 1fc0: ffffffff 00000000 0008e058 00000036 000f4240 00000000 00000001 00003a97 1fe0: 7ea81c70 7ea81c60 00010720 0002e880 r10:00000036 r9:840e4800 r8:8020029c r7:00000036 r6:0008e058 r5:00000000 r4:ffffffff Rebooting in 86400 seconds..