syz-executor2 cpuset=syz2 mems_allowed=0
CPU: 0 PID: 2286 Comm: syz-executor2 Not tainted 4.19.0+ #80
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
==================================================================
BUG: KMSAN: uninit-value in get_stack_info+0x720/0x9d0 arch/x86/kernel/dumpstack_64.c:139
CPU: 0 PID: 2286 Comm: syz-executor2 Not tainted 4.19.0+ #80
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x419/0x480 lib/dump_stack.c:113
 kmsan_report+0x19f/0x300 mm/kmsan/kmsan.c:911
 __msan_warning+0x76/0xd0 mm/kmsan/kmsan_instr.c:415
 get_stack_info+0x720/0x9d0 arch/x86/kernel/dumpstack_64.c:139
 __unwind_start+0x7d/0xe0 arch/x86/kernel/unwind_frame.c:402
 unwind_start arch/x86/include/asm/unwind.h:54 [inline]
 show_trace_log_lvl+0x20e/0x11e0 arch/x86/kernel/dumpstack.c:173
 show_stack+0x12e/0x170 arch/x86/kernel/dumpstack.c:293
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x32d/0x480 lib/dump_stack.c:113
 warn_alloc+0x4e9/0x720 mm/page_alloc.c:3441
 __vmalloc_node_range+0xd5a/0x12a0 mm/vmalloc.c:1768
 __vmalloc_node mm/vmalloc.c:1797 [inline]
 __vmalloc_node_flags_caller+0x12b/0x140 mm/vmalloc.c:1819
 kvmalloc_node+0x3a1/0x3e0 mm/util.c:432
 kvmalloc include/linux/mm.h:577 [inline]
 kvmalloc_array include/linux/mm.h:595 [inline]
 kvcalloc include/linux/mm.h:600 [inline]
 kvm_arch_create_memslot+0x172/0xa40 arch/x86/kvm/x86.c:9051
 __kvm_set_memory_region+0x11ff/0x2cf0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1011
 kvm_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1083 [inline]
 kvm_vm_ioctl_set_memory_region arch/x86/kvm/../../../virt/kvm/kvm_main.c:1095 [inline]
 kvm_vm_ioctl+0x17f5/0x33f0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2987
 do_vfs_ioctl+0xf77/0x2d30 fs/ioctl.c:46
 ksys_ioctl fs/ioctl.c:702 [inline]
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
 __x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
 do_syscall_64+0xcf/0x110 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f37cead5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000020000000 RSI: 000000004020ae46 RDI: 0000000000000005
RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f37cead66d4
R13: 00000000004bfec8 R14: 00000000004d01f0 R15: 00000000ffffffff

Local variable description: ----state@show_trace_log_lvl
Variable was created at:
 show_trace_log_lvl+0xb3/0x11e0 arch/x86/kernel/dumpstack.c:164
 show_stack+0x12e/0x170 arch/x86/kernel/dumpstack.c:293
==================================================================