===================================================== BUG: KMSAN: uninit-value in vmap_pte_range mm/vmalloc.c:213 [inline] BUG: KMSAN: uninit-value in vmap_pmd_range mm/vmalloc.c:238 [inline] BUG: KMSAN: uninit-value in vmap_pud_range mm/vmalloc.c:256 [inline] BUG: KMSAN: uninit-value in vmap_p4d_range mm/vmalloc.c:274 [inline] BUG: KMSAN: uninit-value in __map_kernel_range_noflush+0xae4/0x11d0 mm/vmalloc.c:315 CPU: 0 PID: 21869 Comm: syz-executor.4 Not tainted 5.11.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5f/0xa0 mm/kmsan/kmsan_instr.c:197 vmap_pte_range mm/vmalloc.c:213 [inline] vmap_pmd_range mm/vmalloc.c:238 [inline] vmap_pud_range mm/vmalloc.c:256 [inline] vmap_p4d_range mm/vmalloc.c:274 [inline] __map_kernel_range_noflush+0xae4/0x11d0 mm/vmalloc.c:315 kmsan_map_kernel_range_noflush+0x1b4/0x210 mm/kmsan/kmsan_shadow.c:318 map_kernel_range_noflush mm/vmalloc.c:329 [inline] map_kernel_range mm/vmalloc.c:339 [inline] __vmalloc_area_node mm/vmalloc.c:2540 [inline] __vmalloc_node_range+0xc83/0x1310 mm/vmalloc.c:2590 __vmalloc_node mm/vmalloc.c:2633 [inline] vmalloc+0xe0/0xf0 mm/vmalloc.c:2666 htable_create net/netfilter/xt_hashlimit.c:298 [inline] hashlimit_mt_check_common+0x182a/0x27e0 net/netfilter/xt_hashlimit.c:898 hashlimit_mt_check_v2+0x3c2/0x550 net/netfilter/xt_hashlimit.c:942 xt_check_match+0xc36/0x1980 net/netfilter/x_tables.c:501 check_match net/ipv6/netfilter/ip6_tables.c:489 [inline] find_check_match net/ipv6/netfilter/ip6_tables.c:506 [inline] find_check_entry net/ipv6/netfilter/ip6_tables.c:557 [inline] translate_table+0x2a49/0x3d90 net/ipv6/netfilter/ip6_tables.c:734 translate_compat_table net/ipv6/netfilter/ip6_tables.c:1472 [inline] compat_do_replace net/ipv6/netfilter/ip6_tables.c:1526 [inline] do_ip6t_set_ctl+0x44a6/0x5690 net/ipv6/netfilter/ip6_tables.c:1633 nf_setsockopt+0x59e/0x600 net/netfilter/nf_sockopt.c:101 ipv6_setsockopt+0x98dc/0xaed0 net/ipv6/ipv6_sockglue.c:1008 udpv6_setsockopt+0x15b/0x220 net/ipv6/udp.c:1628 sock_common_setsockopt+0x16c/0x1b0 net/core/sock.c:3249 __sys_setsockopt+0x94c/0xd80 net/socket.c:2115 __do_sys_setsockopt net/socket.c:2126 [inline] __se_sys_setsockopt+0xdd/0x100 net/socket.c:2123 __ia32_sys_setsockopt+0x62/0x80 net/socket.c:2123 do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline] __do_fast_syscall_32+0x102/0x160 arch/x86/entry/common.c:141 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:166 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:209 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f70549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f55285fc EFLAGS: 00000296 ORIG_RAX: 000000000000016e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000029 RDX: 0000000000000040 RSI: 0000000020000000 RDI: 000000000000045c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Local variable ----regs@__bpf_prog_run32 created at: __bpf_prog_run32+0x84/0x190 kernel/bpf/core.c:1689 __bpf_prog_run32+0x84/0x190 kernel/bpf/core.c:1689 =====================================================