------------[ cut here ]------------ WARNING: CPU: 1 PID: 3991 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: 1 UID: 0 PID: 3991 Comm: syz-executor.0 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 r4:822602a4 [<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) r7:804bedc0 [<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 r1:82246cb4 r0:8224e730 [<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 r7:8227aae8 r6:dfc8dd14 r5:84f13000 r4:00000000 [<80254bd0>] (warn_slowpath_fmt) from [<804bedc0>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622) r10:00000000 r9:00000000 r8:85492800 r7:00000000 r6:00000003 r5:84f13000 r4:ffedc000 [<804bebb4>] (kunmap_local_indexed) from [<8053b518>] (__kunmap_local include/linux/highmem-internal.h:102 [inline]) [<804bebb4>] (kunmap_local_indexed) from [<8053b518>] (move_pages_pte mm/userfaultfd.c:1457 [inline]) [<804bebb4>] (kunmap_local_indexed) from [<8053b518>] (move_pages+0xb1c/0x1a00 mm/userfaultfd.c:1863) r7:00000000 r6:fffffffe r5:85492830 r4:ffeda7d8 [<8053a9fc>] (move_pages) from [<805c4a84>] (userfaultfd_move fs/userfaultfd.c:1923 [inline]) [<8053a9fc>] (move_pages) from [<805c4a84>] (userfaultfd_ioctl+0x1254/0x2408 fs/userfaultfd.c:2046) r10:84df30c0 r9:dfc8de98 r8:00000001 r7:20c16000 r6:00000000 r5:20000080 r4:84fd7000 [<805c3830>] (userfaultfd_ioctl) from [<8056cdf8>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<805c3830>] (userfaultfd_ioctl) from [<8056cdf8>] (do_vfs_ioctl fs/ioctl.c:552 [inline]) [<805c3830>] (userfaultfd_ioctl) from [<8056cdf8>] (__do_sys_ioctl fs/ioctl.c:596 [inline]) [<805c3830>] (userfaultfd_ioctl) from [<8056cdf8>] (sys_ioctl+0x130/0xba0 fs/ioctl.c:584) r10:84f13000 r9:00000003 r8:848ae900 r7:20000080 r6:848ae901 r5:00000000 r4:c028aa05 [<8056ccc8>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xdfc8dfa8 to 0xdfc8dff0) dfa0: 00000000 00000000 00000003 c028aa05 20000080 00000000 dfc0: 00000000 00000000 0014c2c8 00000036 7ea4a32e 7ea4a32f 003d0f00 76b180fc dfe0: 76b17f08 76b17ef8 000167e8 00050bb0 r10:00000036 r9:84f13000 r8:8020029c r7:00000036 r6:0014c2c8 r5:00000000 r4:00000000 Rebooting in 86400 seconds..