[ 10.288341][ T3996] 8021q: adding VLAN 0 to HW filter on device bond0 [ 10.290858][ T3996] eql: remember to turn off Van-Jacobson compression on your slave devices [ 10.330173][ T39] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 10.337257][ T3905] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.149' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 26.123298][ T4410] usercopy: Kernel memory exposure attempt detected from SLUB object 'skbuff_head_cache' (offset 168, size 4)! [ 26.126429][ T4410] ------------[ cut here ]------------ [ 26.127852][ T4410] kernel BUG at mm/usercopy.c:102! [ 26.129175][ T4410] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP [ 26.131113][ T4410] Modules linked in: [ 26.132104][ T4410] CPU: 0 PID: 4410 Comm: syz-executor533 Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0 [ 26.134737][ T4410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 26.137290][ T4410] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 26.139351][ T4410] pc : usercopy_abort+0x90/0x94 [ 26.140627][ T4410] lr : usercopy_abort+0x90/0x94 [ 26.141867][ T4410] sp : ffff80000fb9b9a0 [ 26.142908][ T4410] x29: ffff80000fb9b9b0 x28: ffff0000c6073400 x27: 0000000020001a00 [ 26.144944][ T4410] x26: 0000000000000014 x25: ffff80000cf52000 x24: fffffc0000000000 [ 26.147000][ T4410] x23: 05ffc00000000200 x22: fffffc000324bf80 x21: ffff0000c92fe1a8 [ 26.149004][ T4410] x20: 0000000000000001 x19: 0000000000000004 x18: 0000000000000000 [ 26.151009][ T4410] x17: 656a626f2042554c x16: ffff0000c6073dd0 x15: ffff80000dbd2118 [ 26.153068][ T4410] x14: ffff0000c6073400 x13: 00000000ffffffff x12: ffff0000c6073400 [ 26.155033][ T4410] x11: ff808000081bbb4c x10: 0000000000000000 x9 : 7b0572d7cc0ccf00 [ 26.157019][ T4410] x8 : 7b0572d7cc0ccf00 x7 : ffff80000bf650d4 x6 : 0000000000000000 [ 26.158979][ T4410] x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 [ 26.160967][ T4410] x2 : ffff0001fefbff08 x1 : 0000000100000000 x0 : 000000000000006c [ 26.162870][ T4410] Call trace: [ 26.163662][ T4410] usercopy_abort+0x90/0x94 [ 26.164802][ T4410] __check_heap_object+0xa8/0x100 [ 26.166028][ T4410] __check_object_size+0x208/0x6b8 [ 26.167266][ T4410] put_cmsg+0x408/0x464 [ 26.168269][ T4410] __sock_recv_cmsgs+0x1fc/0x248 [ 26.169443][ T4410] packet_recvmsg+0x2d8/0x678 [ 26.170639][ T4410] ____sys_recvmsg+0x110/0x3a0 [ 26.171844][ T4410] __sys_recvmsg+0x194/0x210 [ 26.172968][ T4410] __arm64_sys_recvmsg+0x2c/0x3c [ 26.174278][ T4410] invoke_syscall+0x64/0x178 [ 26.175423][ T4410] el0_svc_common+0xbc/0x180 [ 26.176542][ T4410] do_el0_svc+0x48/0x110 [ 26.177581][ T4410] el0_svc+0x58/0x14c [ 26.178586][ T4410] el0t_64_sync_handler+0x84/0xf0 [ 26.179844][ T4410] el0t_64_sync+0x190/0x194 [ 26.180990][ T4410] Code: 91388800 aa0903e1 f90003e8 94e6d752 (d4210000) [ 26.182727][ T4410] ---[ end trace 0000000000000000 ]--- [ 26.447504][ T4410] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 26.449304][ T4410] SMP: stopping secondary CPUs [ 26.450512][ T4410] Kernel Offset: disabled [ 26.451619][ T4410] CPU features: 0x000000,10380201,32017203 [ 26.453041][ T4410] Memory Limit: none [ 26.723836][ T4410] Rebooting in 86400 seconds..