===================================================== BUG: KMSAN: uninit-value in exit_to_user_mode_loop+0x3a3/0x3d0 kernel/entry/common.c:154 exit_to_user_mode_loop+0x3a3/0x3d0 kernel/entry/common.c:154 exit_to_user_mode_prepare kernel/entry/common.c:203 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x79/0xc0 kernel/entry/common.c:296 __do_fast_syscall_32+0xa5/0xf0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Local variable regs created at: __bpf_prog_run32+0x84/0x180 kernel/bpf/core.c:2073 bpf_dispatcher_nop_func include/linux/bpf.h:804 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2022 [inline] bpf_trace_run2+0x129/0x380 kernel/trace/bpf_trace.c:2059 CPU: 0 PID: 3826 Comm: syz-executor.0 Not tainted 5.18.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================