CPU: 1 PID: 14222 Comm: syz-executor.0 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:__alloc_pages+0x63e/0xe80 mm/page_alloc.c:5509 Code: ff ff e9 4a 02 00 00 44 89 f7 e8 9d 61 15 00 e9 80 fa ff ff 48 c7 c7 c1 a7 a9 8f e8 5c 55 15 00 c6 00 00 c6 05 03 7a 95 0d 01 <0f> 0b e9 6f fa ff ff 89 7d 98 89 4d 94 e8 70 61 15 00 8b 4d 94 8b RSP: 0018:ffff88801fdb38e8 EFLAGS: 00010282 RAX: ffff88823fa867c1 RBX: 0000000000040dc0 RCX: 0000000000b3b735 ===================================================== BUG: KMSAN: uninit-value in __show_regs+0xb20/0xc90 arch/x86/kernel/process_64.c:83 __show_regs+0xb20/0xc90 arch/x86/kernel/process_64.c:83 show_regs+0x6e/0xd0 arch/x86/kernel/dumpstack.c:469 __warn+0x242/0x580 kernel/panic.c:621 report_bug+0x7ff/0xa10 lib/bug.c:198 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:316 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:336 asm_exc_invalid_op+0x1b/0x20 __alloc_pages+0x63e/0xe80 mm/page_alloc.c:5509 alloc_page_interleave+0x40/0x2b0 mm/mempolicy.c:2103 alloc_pages+0x879/0xd80 mm/mempolicy.c:2265 kmalloc_order mm/slab_common.c:930 [inline] kmalloc_order_trace+0x70/0x450 mm/slab_common.c:946 kmalloc_large include/linux/slab.h:529 [inline] __kmalloc+0x88d/0x1120 mm/slub.c:4428 kmalloc include/linux/slab.h:605 [inline] kzalloc include/linux/slab.h:733 [inline] input_mt_init_slots+0x158/0xb50 drivers/input/input-mt.c:50 uinput_create_device+0x88d/0xa20 drivers/input/misc/uinput.c:327 uinput_ioctl_handler+0xcf6/0x2060 drivers/input/misc/uinput.c:870 uinput_ioctl+0x3e/0x50 drivers/input/misc/uinput.c:1041 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x222/0x400 fs/ioctl.c:856 __x64_sys_ioctl+0x92/0xd0 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Local variable indices created at: truncate_inode_pages_range+0x73/0x1cc0 mm/truncate.c:336 truncate_inode_pages mm/truncate.c:452 [inline] truncate_inode_pages_final+0x8c/0xa0 mm/truncate.c:487 CPU: 1 PID: 14222 Comm: syz-executor.0 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 =====================================================