CPU: 1 PID: 7493 Comm: syz-executor.4 Not tainted 6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #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:5530 Code: ff ff e9 4a 02 00 00 44 89 f7 e8 3d eb 14 00 e9 80 fa ff ff 48 c7 c7 c4 db 61 8f e8 fc de 14 00 c6 00 00 c6 05 d6 5e 51 0d 01 <0f> 0b e9 6f fa ff ff 89 7d 98 89 4d 94 e8 10 eb 14 00 8b 4d 94 8b RSP: 0018:ffff8880978c39a0 EFLAGS: 00010286 ===================================================== BUG: KMSAN: uninit-value in __show_regs+0xae8/0xc90 arch/x86/kernel/process_64.c:81 __show_regs+0xae8/0xc90 arch/x86/kernel/process_64.c:81 show_regs+0x6e/0xd0 arch/x86/kernel/dumpstack.c:469 __warn+0x242/0x580 kernel/panic.c:618 report_bug+0x7ff/0xa10 lib/bug.c:198 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:317 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:338 asm_exc_invalid_op+0x1b/0x20 arch/x86/include/asm/idtentry.h:568 __alloc_pages+0x63e/0xe80 mm/page_alloc.c:5530 __alloc_pages_node include/linux/gfp.h:223 [inline] alloc_pages_node include/linux/gfp.h:246 [inline] __kmalloc_large_node+0xa5/0x290 mm/slab_common.c:1098 __do_kmalloc_node mm/slab_common.c:943 [inline] __kmalloc+0x1d5/0x3c0 mm/slab_common.c:968 kmalloc include/linux/slab.h:581 [inline] kzalloc include/linux/slab.h:712 [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+0xcf6/0x2050 drivers/input/misc/uinput.c:870 uinput_compat_ioctl+0x9c/0xb0 drivers/input/misc/uinput.c:1072 __do_compat_sys_ioctl fs/ioctl.c:968 [inline] __se_compat_sys_ioctl+0x781/0xfa0 fs/ioctl.c:910 __ia32_compat_sys_ioctl+0x8f/0xd0 fs/ioctl.c:910 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Local variable filename created at: process_measurement+0x10b/0x3680 security/integrity/ima/ima_main.c:209 ima_file_check+0xbc/0x120 security/integrity/ima/ima_main.c:517 CPU: 1 PID: 7493 Comm: syz-executor.4 Not tainted 6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 =====================================================