===================================================== BUG: KMSAN: uninit-value in __list_add_valid+0x1ee/0x480 lib/list_debug.c:23 __list_add_valid+0x1ee/0x480 lib/list_debug.c:23 __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] kcov_remote_area_put kernel/kcov.c:155 [inline] kcov_remote_stop+0x2ab/0x340 kernel/kcov.c:1023 vhost_worker+0x2ae/0x4c0 drivers/vhost/vhost.c:373 kthread+0x721/0x850 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 Local variable regs created at: __bpf_prog_run32+0x84/0x180 kernel/bpf/core.c:1795 bpf_dispatcher_nop_func include/linux/bpf.h:727 [inline] __bpf_prog_run include/linux/filter.h:626 [inline] bpf_prog_run include/linux/filter.h:633 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1937 [inline] bpf_trace_run2+0x129/0x380 kernel/trace/bpf_trace.c:1974 CPU: 0 PID: 11199 Comm: vhost-11197 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ===================================================== Kernel panic - not syncing: kmsan.panic set ... CPU: 0 PID: 11199 Comm: vhost-11197 Tainted: G B 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1ff/0x28e lib/dump_stack.c:106 dump_stack+0x25/0x28 lib/dump_stack.c:113 panic+0x487/0xe1f kernel/panic.c:232 kmsan_report+0x2e6/0x2f0 mm/kmsan/report.c:207 __msan_warning+0xb8/0x130 mm/kmsan/instrumentation.c:222 __list_add_valid+0x1ee/0x480 lib/list_debug.c:23 __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] kcov_remote_area_put kernel/kcov.c:155 [inline] kcov_remote_stop+0x2ab/0x340 kernel/kcov.c:1023 vhost_worker+0x2ae/0x4c0 drivers/vhost/vhost.c:373 kthread+0x721/0x850 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..