===================================================== BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535 __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:463 __sysvec_call_function_single+0x4b/0x3e0 arch/x86/kernel/smp.c:271 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline] sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:266 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704 smap_restore arch/x86/include/asm/smap.h:90 [inline] get_shadow_origin_ptr mm/kmsan/instrumentation.c:39 [inline] __msan_metadata_ptr_for_load_1+0x2b/0x40 mm/kmsan/instrumentation.c:91 strlen+0x3a/0x80 lib/string.c:420 __fortify_strlen include/linux/fortify-string.h:266 [inline] kernfs_get_target_path fs/kernfs/symlink.c:84 [inline] kernfs_getlink fs/kernfs/symlink.c:122 [inline] kernfs_iop_get_link+0x635/0xf60 fs/kernfs/symlink.c:140 vfs_readlink+0x548/0x9e0 fs/namei.c:6265 do_readlinkat+0x311/0x7f0 fs/stat.c:583 __do_sys_readlink fs/stat.c:605 [inline] __se_sys_readlink fs/stat.c:602 [inline] __x64_sys_readlink+0x9a/0x100 fs/stat.c:602 x64_sys_call+0x3630/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:90 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable s created at: vmx_get_segment_base+0x3d/0x310 arch/x86/kvm/vmx/vmx.c:3745 get_segment_base arch/x86/kvm/x86.c:8500 [inline] emulator_get_cached_segment_base+0x4a/0x60 arch/x86/kvm/x86.c:8642 CPU: 1 UID: 0 PID: 5132 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 =====================================================