=====================================================
BUG: KMSAN: uninit-value in bpf_get_branch_snapshot+0x128/0x180
 bpf_get_branch_snapshot+0x128/0x180
 ___bpf_prog_run+0x93a/0xb300
 __bpf_prog_run32+0x125/0x190
 bpf_trace_run2+0x12d/0x390
 __bpf_trace_sys_exit+0x1a8/0x200
 syscall_exit_work+0x4b3/0x500
 syscall_exit_to_user_mode+0x37/0x40
 __do_fast_syscall_32+0xa4/0xf0
 do_fast_syscall_32+0x33/0x70
 do_SYSENTER_32+0x1b/0x20
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c

Local variable regs created at:
 __bpf_prog_run32+0x88/0x190
 bpf_trace_run2+0x12d/0x390

CPU: 0 PID: 17207 Comm: syz-executor.2 Tainted: G        W         5.18.0-syzkaller-16253-g2f3064574275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================