kasan: CONFIG_KASAN_INLINE enabled kmem_cache_zalloc include/linux/slab.h:699 [inline] mmu_topup_memory_cache arch/x86/kvm/mmu.c:933 [inline] mmu_topup_memory_cache arch/x86/kvm/mmu.c:925 [inline] mmu_topup_memory_caches+0x97/0x3a0 arch/x86/kvm/mmu.c:979 kasan: GPF could be caused by NULL-ptr deref or user memory access kvm_mmu_load+0x21/0xf80 arch/x86/kvm/mmu.c:4968 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest+0x3d4a/0x6240 arch/x86/kvm/x86.c:7569 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10163 Comm: syz-executor.0 Not tainted 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ip6erspan_set_version+0x5c/0x350 net/ipv6/ip6_gre.c:1742 Code: 07 38 d0 7f 08 84 c0 0f 85 9f 02 00 00 49 8d bc 24 b0 00 00 00 c6 43 54 01 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9a 02 00 00 4d 8b ac 24 b0 00 00 00 4d 85 ed 0f vcpu_run arch/x86/kvm/x86.c:7767 [inline] kvm_arch_vcpu_ioctl_run+0x419/0x16c0 arch/x86/kvm/x86.c:7967 RSP: 0018:ffff888056d76fc8 EFLAGS: 00010202 kvm_vcpu_ioctl+0x4dc/0xfa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2594 RAX: dffffc0000000000 RBX: ffff88807b461218 RCX: ffffc90005e5f000 RDX: 0000000000000016 RSI: ffffffff8610a4e4 RDI: 00000000000000b0 RBP: ffff888056d76fe0 R08: 1ffff1100f68c243 R09: ffff88807b461218 R10: ffffed100f68c24d R11: ffff88807b46126f R12: 0000000000000000 R13: ffff8880a1a20040 R14: ffffffff893ce800 R15: ffff88807b461218 FS: 00007f4a04c40700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001340 CR3: 00000000909fe000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6erspan_newlink+0x66/0x7b0 net/ipv6/ip6_gre.c:2232 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:688 rtnl_newlink+0x1062/0x1620 net/core/rtnetlink.c:3107 ksys_ioctl+0xab/0xd0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:710 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458c29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe4ec35ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe4ec35ec90 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe4ec35f6d4 R13: 00000000004c1baf R14: 00000000004d43d0 R15: 0000000000000006 rtnetlink_rcv_msg+0x465/0xb00 net/core/rtnetlink.c:4743 kobject: 'kvm' (0000000066991638): kobject_uevent_env kobject: 'kvm' (0000000066991638): fill_kobj_path: path = '/devices/virtual/misc/kvm' netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4761 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458c29 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4a04c3fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000020001340 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4a04c406d4 R13: 00000000004c6516 R14: 00000000004dae80 R15: 00000000ffffffff Modules linked in: kobject: 'loop1' (00000000f8f2358b): kobject_uevent_env kobject: 'loop1' (00000000f8f2358b): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (0000000041babfbb): kobject_uevent_env kobject: 'loop4' (0000000041babfbb): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000003bd6bb0b): kobject_uevent_env kobject: 'loop2' (000000003bd6bb0b): fill_kobj_path: path = '/devices/virtual/block/loop2' ---[ end trace 60f7887389494e01 ]--- kobject: 'kvm' (0000000066991638): kobject_uevent_env kobject: 'kvm' (0000000066991638): fill_kobj_path: path = '/devices/virtual/misc/kvm' RIP: 0010:ip6erspan_set_version+0x5c/0x350 net/ipv6/ip6_gre.c:1742 kobject: 'loop3' (0000000043afd92c): kobject_uevent_env Code: 07 38 d0 7f 08 84 c0 0f 85 9f 02 00 00 49 8d bc 24 b0 00 00 00 c6 43 54 01 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9a 02 00 00 4d 8b ac 24 b0 00 00 00 4d 85 ed 0f kobject: 'loop3' (0000000043afd92c): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000003bd6bb0b): kobject_uevent_env kobject: 'loop2' (000000003bd6bb0b): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000043afd92c): kobject_uevent_env RSP: 0018:ffff888056d76fc8 EFLAGS: 00010202 kobject: 'loop3' (0000000043afd92c): fill_kobj_path: path = '/devices/virtual/block/loop3' RAX: dffffc0000000000 RBX: ffff88807b461218 RCX: ffffc90005e5f000 kobject: 'loop2' (000000003bd6bb0b): kobject_uevent_env RDX: 0000000000000016 RSI: ffffffff8610a4e4 RDI: 00000000000000b0 kobject: 'loop2' (000000003bd6bb0b): fill_kobj_path: path = '/devices/virtual/block/loop2' RBP: ffff888056d76fe0 R08: 1ffff1100f68c243 R09: ffff88807b461218 kobject: 'loop3' (0000000043afd92c): kobject_uevent_env kobject: 'loop3' (0000000043afd92c): fill_kobj_path: path = '/devices/virtual/block/loop3' R10: ffffed100f68c24d R11: ffff88807b46126f R12: 0000000000000000 R13: ffff8880a1a20040 R14: ffffffff893ce800 R15: ffff88807b461218 FS: 00007f4a04c40700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000000909fe000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400