IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 2 PID: 25213 Comm: syz-executor.3 Not tainted 5.17.0-syzkaller-14114-g09bb8856d4a7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline] RIP: 0010:hrtimer_active+0x6b/0x1f0 kernel/time/hrtimer.c:1611 Code: 01 f0 48 89 44 24 10 e8 a3 db 10 00 48 8b 44 24 08 80 38 00 0f 85 71 01 00 00 49 8b 6d 30 48 8d 45 10 48 89 04 24 48 c1 e8 03 <42> 0f b6 04 30 84 c0 74 08 3c 03 0f 8e 42 01 00 00 8b 5d 10 31 ff RSP: 0018:ffffc90003fce988 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff88802846c120 RCX: ffffc90006ac1000 RDX: 0000000000040000 RSI: ffffffff8167c15d RDI: ffff88802846c120 RBP: 0000000000000000 R08: 0000000000000004 R09: ffff88802846c017 R10: ffffffff873b62e2 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88802846c120 R14: dffffc0000000000 R15: ffffed100508d802 FS: 0000000000000000(0000) GS:ffff88802cc00000(0063) knlGS:00000000f7f33b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f6f5b024 CR3: 0000000045d55000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hrtimer_try_to_cancel+0x21/0x1e0 kernel/time/hrtimer.c:1328 hrtimer_cancel+0x13/0x40 kernel/time/hrtimer.c:1443 napi_disable+0xc8/0x120 net/core/dev.c:6338 veth_napi_del_range+0xc5/0x560 drivers/net/veth.c:1040 veth_napi_del drivers/net/veth.c:1055 [inline] veth_set_features+0x156/0x190 drivers/net/veth.c:1483 __netdev_update_features+0x800/0x1970 net/core/dev.c:9615 netdev_update_features+0x63/0xd0 net/core/dev.c:9689 veth_xdp_set drivers/net/veth.c:1579 [inline] veth_xdp+0x4ce/0x820 drivers/net/veth.c:1592 dev_xdp_install+0xd5/0x2b0 net/core/dev.c:9009 dev_xdp_attach+0xa30/0x12b0 net/core/dev.c:9157 dev_change_xdp_fd+0x246/0x300 net/core/dev.c:9403 do_setlink+0x305a/0x3a20 net/core/rtnetlink.c:2952 rtnl_group_changelink net/core/rtnetlink.c:3265 [inline] __rtnl_newlink+0xc18/0x1760 net/core/rtnetlink.c:3421 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3531 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5990 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2496 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 ____sys_sendmsg+0x6e2/0x800 net/socket.c:2413 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f38549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7f335cc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000140 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline] RIP: 0010:hrtimer_active+0x6b/0x1f0 kernel/time/hrtimer.c:1611 Code: 01 f0 48 89 44 24 10 e8 a3 db 10 00 48 8b 44 24 08 80 38 00 0f 85 71 01 00 00 49 8b 6d 30 48 8d 45 10 48 89 04 24 48 c1 e8 03 <42> 0f b6 04 30 84 c0 74 08 3c 03 0f 8e 42 01 00 00 8b 5d 10 31 ff RSP: 0018:ffffc90003fce988 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff88802846c120 RCX: ffffc90006ac1000 RDX: 0000000000040000 RSI: ffffffff8167c15d RDI: ffff88802846c120 RBP: 0000000000000000 R08: 0000000000000004 R09: ffff88802846c017 R10: ffffffff873b62e2 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88802846c120 R14: dffffc0000000000 R15: ffffed100508d802 FS: 0000000000000000(0000) GS:ffff88802cc00000(0063) knlGS:00000000f7f33b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f6f5b024 CR3: 0000000045d55000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 01 f0 add %esi,%eax 2: 48 89 44 24 10 mov %rax,0x10(%rsp) 7: e8 a3 db 10 00 callq 0x10dbaf c: 48 8b 44 24 08 mov 0x8(%rsp),%rax 11: 80 38 00 cmpb $0x0,(%rax) 14: 0f 85 71 01 00 00 jne 0x18b 1a: 49 8b 6d 30 mov 0x30(%r13),%rbp 1e: 48 8d 45 10 lea 0x10(%rbp),%rax 22: 48 89 04 24 mov %rax,(%rsp) 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 74 08 je 0x3b 33: 3c 03 cmp $0x3,%al 35: 0f 8e 42 01 00 00 jle 0x17d 3b: 8b 5d 10 mov 0x10(%rbp),%ebx 3e: 31 ff xor %edi,%edi