------------[ cut here ]------------ WARNING: CPU: 0 PID: 10926 at mm/highmem.c:622 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 0 UID: 0 PID: 10926 Comm: syz.1.1531 Not tainted 6.17.0-rc1-syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:8281f77c r5:00000000 r4:82260308 [<80201b08>] (show_stack) from [<8021fb74>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201b08>] (show_stack) from [<8021fb74>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120) [<8021fb20>] (dump_stack_lvl) from [<8021fbb4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:82a77d18 [<8021fb9c>] (dump_stack) from [<80202624>] (vpanic+0x10c/0x30c kernel/panic.c:430) [<80202518>] (vpanic) from [<80202858>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:566) r7:804bedc8 [<80202824>] (panic) from [<80254960>] (check_panic_on_warn kernel/panic.c:323 [inline]) [<80202824>] (panic) from [<80254960>] (get_taint+0x0/0x1c kernel/panic.c:318) r3:8280c684 r2:00000001 r1:82246d18 r0:8224e794 [<802548e8>] (check_panic_on_warn) from [<80254ac4>] (__warn+0x80/0x188 kernel/panic.c:837) [<80254a44>] (__warn) from [<80254d44>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:864) r8:00000009 r7:8227ab4c r6:dfbc1d14 r5:8591e000 r4:00000000 [<80254bd0>] (warn_slowpath_fmt) from [<804bedc8>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622) r10:00000000 r9:decb9c64 r8:deb55fd4 r7:00a00000 r6:00000003 r5:8591e000 r4:ffefd000 [<804bebbc>] (kunmap_local_indexed) from [<8053b520>] (__kunmap_local include/linux/highmem-internal.h:102 [inline]) [<804bebbc>] (kunmap_local_indexed) from [<8053b520>] (move_pages_pte mm/userfaultfd.c:1457 [inline]) [<804bebbc>] (kunmap_local_indexed) from [<8053b520>] (move_pages+0xb1c/0x1a00 mm/userfaultfd.c:1863) r7:00a00000 r6:00000000 r5:85d9b524 r4:ffefb000 [<8053aa04>] (move_pages) from [<805c4a8c>] (userfaultfd_move fs/userfaultfd.c:1923 [inline]) [<8053aa04>] (move_pages) from [<805c4a8c>] (userfaultfd_ioctl+0x1254/0x2408 fs/userfaultfd.c:2046) r10:84b39040 r9:dfbc1e98 r8:00000001 r7:21000000 r6:00000000 r5:20000040 r4:85ca1000 [<805c3838>] (userfaultfd_ioctl) from [<8056ce00>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<805c3838>] (userfaultfd_ioctl) from [<8056ce00>] (do_vfs_ioctl fs/ioctl.c:552 [inline]) [<805c3838>] (userfaultfd_ioctl) from [<8056ce00>] (__do_sys_ioctl fs/ioctl.c:596 [inline]) [<805c3838>] (userfaultfd_ioctl) from [<8056ce00>] (sys_ioctl+0x130/0xba0 fs/ioctl.c:584) r10:8591e000 r9:00000003 r8:860cd540 r7:20000040 r6:860cd541 r5:00000000 r4:c028aa05 [<8056ccd0>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xdfbc1fa8 to 0xdfbc1ff0) 1fa0: 00000000 00000000 00000003 c028aa05 20000040 00000000 1fc0: 00000000 00000000 002f6308 00000036 002e0000 00000000 00006364 76f360bc 1fe0: 76f35ec0 76f35eb0 0001948c 001322c0 r10:00000036 r9:8591e000 r8:8020029c r7:00000036 r6:002f6308 r5:00000000 r4:00000000 Rebooting in 86400 seconds..