===================================================== BUG: KMSAN: uninit-value in native_apic_mem_write+0x72/0x90 arch/x86/include/asm/apic.h:105 native_apic_mem_write+0x72/0x90 arch/x86/include/asm/apic.h:105 apic_eoi arch/x86/include/asm/apic.h:398 [inline] ack_APIC_irq arch/x86/include/asm/apic.h:444 [inline] __sysvec_reschedule_ipi arch/x86/kernel/smp.c:227 [inline] sysvec_reschedule_ipi+0x35/0x120 arch/x86/kernel/smp.c:225 asm_sysvec_reschedule_ipi+0x1f/0x30 arch/x86/include/asm/idtentry.h:654 skb_dst_copy include/net/dst.h:283 [inline] __copy_skb_header+0x502/0xac0 net/core/skbuff.c:1192 __skb_clone+0xa2/0xa40 net/core/skbuff.c:1243 skb_clone+0x4a9/0x670 net/core/skbuff.c:1721 dev_queue_xmit_nit+0x523/0x1400 net/core/dev.c:2250 xmit_one net/core/dev.c:3571 [inline] dev_hard_start_xmit+0x21d/0xb50 net/core/dev.c:3591 sch_direct_xmit+0x5f0/0x1400 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3802 [inline] __dev_queue_xmit+0x3c80/0x6290 net/core/dev.c:4207 dev_queue_xmit include/linux/netdevice.h:3033 [inline] neigh_hh_output include/net/neighbour.h:530 [inline] neigh_output include/net/neighbour.h:544 [inline] ip_finish_output2+0x18d0/0x1b30 net/ipv4/ip_output.c:228 __ip_finish_output+0x364/0x970 ip_finish_output+0xa6/0x540 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip_output+0x2f7/0x6e0 net/ipv4/ip_output.c:430 dst_output include/net/dst.h:444 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] __ip_queue_xmit+0x21b1/0x2610 net/ipv4/ip_output.c:532 ip_queue_xmit+0xd1/0xf0 net/ipv4/ip_output.c:546 __tcp_transmit_skb+0x4b58/0x5e90 net/ipv4/tcp_output.c:1399 __tcp_send_ack+0x747/0x9e0 net/ipv4/tcp_output.c:3983 tcp_send_ack+0x6c/0x90 net/ipv4/tcp_output.c:3989 __tcp_ack_snd_check+0x843/0xf20 net/ipv4/tcp_input.c:5536 tcp_rcv_established+0x2a3a/0x2fe0 net/ipv4/tcp_input.c:5980 tcp_v4_do_rcv+0x85b/0x13e0 net/ipv4/tcp_ipv4.c:1721 tcp_v4_rcv+0x4ebd/0x53d0 net/ipv4/tcp_ipv4.c:2142 ip_protocol_deliver_rcu+0x2fd/0x1660 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x37f/0x5d0 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:302 [inline] ip_local_deliver+0x316/0x5b0 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:454 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:580 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:630 [inline] ip_sublist_rcv+0x1165/0x14a0 net/ipv4/ip_input.c:638 ip_list_rcv+0x8f2/0x950 net/ipv4/ip_input.c:673 __netif_receive_skb_list_ptype net/core/dev.c:5517 [inline] __netif_receive_skb_list_core+0xe1b/0x1200 net/core/dev.c:5565 __netif_receive_skb_list net/core/dev.c:5617 [inline] netif_receive_skb_list_internal+0x109a/0x17a0 net/core/dev.c:5708 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0x530/0xd30 net/core/dev.c:6048 virtqueue_napi_complete drivers/net/virtio_net.c:405 [inline] virtnet_poll+0x18d8/0x2490 drivers/net/virtio_net.c:1685 __napi_poll+0x144/0xbb0 net/core/dev.c:6477 napi_poll net/core/dev.c:6544 [inline] net_rx_action+0xa41/0x1a90 net/core/dev.c:6655 __do_softirq+0x211/0x818 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x117/0x260 kernel/softirq.c:650 irq_exit_rcu+0x12/0x20 kernel/softirq.c:662 common_interrupt+0xb8/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x2b/0x40 arch/x86/include/asm/idtentry.h:640 kmsan_get_metadata+0x4/0x2c0 mm/kmsan/shadow.c:125 get_shadow_origin_ptr mm/kmsan/instrumentation.c:36 [inline] __msan_metadata_ptr_for_load_1+0x24/0x40 mm/kmsan/instrumentation.c:89 full_name_hash+0x27c/0x360 fs/namei.c:2189 tomoyo_fill_path_info+0x580/0x630 security/tomoyo/util.c:685 tomoyo_get_realpath security/tomoyo/file.c:153 [inline] tomoyo_path_perm+0x39b/0xc50 security/tomoyo/file.c:822 tomoyo_inode_getattr+0x58/0x70 security/tomoyo/tomoyo.c:122 security_inode_getattr+0x156/0x240 security/security.c:1375 vfs_getattr+0x9a/0x640 fs/stat.c:161 vfs_statx+0x32b/0x9a0 fs/stat.c:236 vfs_fstatat+0x156/0x1a0 fs/stat.c:270 vfs_lstat include/linux/fs.h:3298 [inline] __do_compat_sys_ia32_lstat64 arch/x86/kernel/sys_ia32.c:179 [inline] __se_compat_sys_ia32_lstat64 arch/x86/kernel/sys_ia32.c:175 [inline] __ia32_compat_sys_ia32_lstat64+0xf8/0x1e0 arch/x86/kernel/sys_ia32.c:175 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+0x37/0x80 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Uninit was created at: slab_post_alloc_hook+0x271/0xf70 mm/slab.h:766 slab_alloc_node mm/slub.c:3452 [inline] slab_alloc mm/slub.c:3460 [inline] __kmem_cache_alloc_lru mm/slub.c:3467 [inline] kmem_cache_alloc+0x586/0xb40 mm/slub.c:3476 skb_clone+0x3ec/0x670 net/core/skbuff.c:1714 dev_queue_xmit_nit+0x523/0x1400 net/core/dev.c:2250 xmit_one net/core/dev.c:3571 [inline] dev_hard_start_xmit+0x21d/0xb50 net/core/dev.c:3591 sch_direct_xmit+0x5f0/0x1400 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3802 [inline] __dev_queue_xmit+0x3c80/0x6290 net/core/dev.c:4207 dev_queue_xmit include/linux/netdevice.h:3033 [inline] neigh_hh_output include/net/neighbour.h:530 [inline] neigh_output include/net/neighbour.h:544 [inline] ip_finish_output2+0x18d0/0x1b30 net/ipv4/ip_output.c:228 __ip_finish_output+0x364/0x970 ip_finish_output+0xa6/0x540 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip_output+0x2f7/0x6e0 net/ipv4/ip_output.c:430 dst_output include/net/dst.h:444 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] __ip_queue_xmit+0x21b1/0x2610 net/ipv4/ip_output.c:532 ip_queue_xmit+0xd1/0xf0 net/ipv4/ip_output.c:546 __tcp_transmit_skb+0x4b58/0x5e90 net/ipv4/tcp_output.c:1399 __tcp_send_ack+0x747/0x9e0 net/ipv4/tcp_output.c:3983 tcp_send_ack+0x6c/0x90 net/ipv4/tcp_output.c:3989 __tcp_ack_snd_check+0x843/0xf20 net/ipv4/tcp_input.c:5536 tcp_rcv_established+0x2a3a/0x2fe0 net/ipv4/tcp_input.c:5980 tcp_v4_do_rcv+0x85b/0x13e0 net/ipv4/tcp_ipv4.c:1721 tcp_v4_rcv+0x4ebd/0x53d0 net/ipv4/tcp_ipv4.c:2142 ip_protocol_deliver_rcu+0x2fd/0x1660 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x37f/0x5d0 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:302 [inline] ip_local_deliver+0x316/0x5b0 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:454 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:580 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:630 [inline] ip_sublist_rcv+0x1165/0x14a0 net/ipv4/ip_input.c:638 ip_list_rcv+0x8f2/0x950 net/ipv4/ip_input.c:673 __netif_receive_skb_list_ptype net/core/dev.c:5517 [inline] __netif_receive_skb_list_core+0xe1b/0x1200 net/core/dev.c:5565 __netif_receive_skb_list net/core/dev.c:5617 [inline] netif_receive_skb_list_internal+0x109a/0x17a0 net/core/dev.c:5708 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0x530/0xd30 net/core/dev.c:6048 virtqueue_napi_complete drivers/net/virtio_net.c:405 [inline] virtnet_poll+0x18d8/0x2490 drivers/net/virtio_net.c:1685 __napi_poll+0x144/0xbb0 net/core/dev.c:6477 napi_poll net/core/dev.c:6544 [inline] net_rx_action+0xa41/0x1a90 net/core/dev.c:6655 __do_softirq+0x211/0x818 kernel/softirq.c:571 CPU: 1 PID: 5016 Comm: syz-executor.1 Not tainted 6.2.0-syzkaller-81151-g224e1375d540 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 =====================================================