do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fe7549 ===================================================== BUG: KMSAN: uninit-value in show_opcodes+0x2c1/0x2e0 arch/x86/kernel/dumpstack.c:123 show_opcodes+0x2c1/0x2e0 arch/x86/kernel/dumpstack.c:123 show_ip arch/x86/kernel/dumpstack.c:144 [inline] show_iret_regs+0xe3/0x230 arch/x86/kernel/dumpstack.c:149 __show_regs+0x31/0xc90 arch/x86/kernel/process_64.c:74 show_regs_if_on_stack+0x45e/0x530 arch/x86/kernel/dumpstack.c:167 show_trace_log_lvl+0x392/0x490 arch/x86/kernel/dumpstack.c:298 show_regs+0xad/0xd0 arch/x86/kernel/dumpstack.c:475 nmi_cpu_backtrace+0x499/0x570 lib/nmi_backtrace.c:109 nmi_cpu_backtrace_handler+0x21/0x40 arch/x86/kernel/apic/hw_nmi.c:45 nmi_handle+0x75/0x140 arch/x86/kernel/nmi.c:140 default_do_nmi+0x69/0x170 arch/x86/kernel/nmi.c:337 exc_nmi+0xaf/0x120 arch/x86/kernel/nmi.c:513 end_repeat_nmi+0x16/0x31 smap_restore arch/x86/include/asm/smap.h:56 [inline] get_shadow_origin_ptr mm/kmsan/instrumentation.c:37 [inline] __msan_metadata_ptr_for_store_8+0x2b/0x40 mm/kmsan/instrumentation.c:78 xa_find+0xbf/0x2c0 lib/xarray.c:2016 devlinks_xa_find_get+0x55/0x500 net/core/devlink.c:300 devlinks_xa_find_get_first net/core/devlink.c:328 [inline] devlink_nl_cmd_port_get_dumpit+0xf0/0x8a0 net/core/devlink.c:1553 netlink_dump+0xa75/0x1430 net/netlink/af_netlink.c:2275 __netlink_dump_start+0xa6d/0xc40 net/netlink/af_netlink.c:2380 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:689 [inline] genl_family_rcv_msg net/netlink/genetlink.c:805 [inline] genl_rcv_msg+0x19b1/0x1e40 net/netlink/genetlink.c:825 netlink_rcv_skb+0x3b5/0x6e0 net/netlink/af_netlink.c:2540 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:836 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x127d/0x1430 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] __sys_sendto+0x7f2/0xa60 net/socket.c:2117 __do_compat_sys_socketcall net/compat.c:473 [inline] __se_compat_sys_socketcall+0x925/0x1a90 net/compat.c:421 __ia32_compat_sys_socketcall+0x67/0x90 net/compat.c:421 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Local variable opcodes created at: show_opcodes+0x49/0x2e0 arch/x86/kernel/dumpstack.c:118 show_ip arch/x86/kernel/dumpstack.c:144 [inline] show_iret_regs+0xe3/0x230 arch/x86/kernel/dumpstack.c:149 CPU: 1 PID: 3775 Comm: syz-executor.1 Not tainted 6.1.0-rc2-syzkaller-61955-g4a3e741a3d6a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 =====================================================