RBP: 00007fa9ceac81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fa9d0199b2f R14: 00007fa9ceac8300 R15: 0000000000022000 ===================================================== BUG: KMSAN: uninit-value in check_pointer lib/vsprintf.c:705 [inline] BUG: KMSAN: uninit-value in bitmap_list_string+0x48b/0xac0 lib/vsprintf.c:1248 check_pointer lib/vsprintf.c:705 [inline] bitmap_list_string+0x48b/0xac0 lib/vsprintf.c:1248 pointer+0x11b2/0x2060 lib/vsprintf.c:2411 vsnprintf+0x1aaf/0x36a0 lib/vsprintf.c:2809 vprintk_store+0x535/0x2180 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+0x187/0x1c9 kernel/printk/printk.c:2266 warn_alloc+0x494/0x680 mm/page_alloc.c:4230 __vmalloc_node_range+0x14ae/0x17f0 __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+0x139b/0x2c30 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+0x1340/0x35e0 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+0x29cf/0x7590 kernel/events/core.c:3696 =====================================================