RAX: ffffffffffffffda RBX: 00007f058a586f60 RCX: 00007f058a473e99
RDX: 0000000000000048 RSI: 0000000020008000 RDI: 0000000000000005
RBP: 00007f0588de91d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f058aabab1f R14: 00007f0588de9300 R15: 0000000000022000
 </TASK>
=====================================================
BUG: KMSAN: uninit-value in check_pointer lib/vsprintf.c:705 [inline]
BUG: KMSAN: uninit-value in bitmap_list_string+0x47e/0xaa0 lib/vsprintf.c:1248
 check_pointer lib/vsprintf.c:705 [inline]
 bitmap_list_string+0x47e/0xaa0 lib/vsprintf.c:1248
 pointer+0x11aa/0x2060 lib/vsprintf.c:2411
 vsnprintf+0x1a9b/0x3650 lib/vsprintf.c:2809
 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2135
 vprintk_emit+0x25c/0x950 kernel/printk/printk.c:2229
 vprintk_default+0x86/0xa0 kernel/printk/printk.c:2256
 vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50
 _printk+0x18d/0x1cf kernel/printk/printk.c:2266
 warn_alloc+0x49e/0x690 mm/page_alloc.c:4230
 __vmalloc_node_range+0x147e/0x17b0
 __vmalloc_node mm/vmalloc.c:3130 [inline]
 __vmalloc+0xf8/0x110 mm/vmalloc.c:3144
 bpf_prog_alloc_no_stats+0xa3/0x710 kernel/bpf/core.c:88
 bpf_prog_alloc+0x74/0x310 kernel/bpf/core.c:122
 bpf_prog_load+0x1397/0x2b70 kernel/bpf/syscall.c:2290
 __sys_bpf+0x9e7/0x1230 kernel/bpf/syscall.c:4633
 __do_sys_bpf kernel/bpf/syscall.c:4737 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4735 [inline]
 __x64_sys_bpf+0xda/0x120 kernel/bpf/syscall.c:4735
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Local variable sample.i created at:
 perf_log_itrace_start kernel/events/core.c:9069 [inline]
 event_sched_in+0x132b/0x35c0 kernel/events/core.c:2557
 group_sched_in kernel/events/core.c:2595 [inline]
 merge_sched_in kernel/events/core.c:3746 [inline]
 visit_groups_merge+0x2919/0x7460 kernel/events/core.c:3696

CPU: 0 PID: 3844 Comm: syz-executor.3 Tainted: G        W         5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================