IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready 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: 1 PID: 7742 Comm: syz-executor.3 Not tainted 5.19.0-rc2-syzkaller-00148-g12378a5a75e3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:274 [inline] RIP: 0010:hrtimer_active+0x6b/0x1f0 kernel/time/hrtimer.c:1611 Code: 01 f0 48 89 44 24 10 e8 83 f3 0f 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:ffffc9000390ed18 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff88804cdba120 RCX: ffffc90005c94000 RDX: 0000000000040000 RSI: ffffffff816a7e8d RDI: ffff88804cdba120 RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000004 R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88804cdba120 R14: dffffc0000000000 R15: ffffed10099b7402 FS: 00007f4289502700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2eb3a000 CR3: 000000007dcb2000 CR4: 00000000003506e0 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:6413 veth_napi_del_range+0xc5/0x560 drivers/net/veth.c:1044 veth_napi_del drivers/net/veth.c:1059 [inline] veth_set_features+0x156/0x190 drivers/net/veth.c:1487 __netdev_update_features+0x801/0x1980 net/core/dev.c:9709 netdev_update_features+0x63/0xd0 net/core/dev.c:9783 veth_xdp_set drivers/net/veth.c:1583 [inline] veth_xdp+0x4ce/0x820 drivers/net/veth.c:1596 dev_xdp_install+0xd5/0x2b0 net/core/dev.c:9103 dev_xdp_attach+0xa30/0x12b0 net/core/dev.c:9251 dev_change_xdp_fd+0x246/0x300 net/core/dev.c:9497 do_setlink+0x31e3/0x3bb0 net/core/rtnetlink.c:3001 rtnl_group_changelink net/core/rtnetlink.c:3302 [inline] __rtnl_newlink+0xb96/0x17e0 net/core/rtnetlink.c:3556 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593 rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546 __sys_sendmsg net/socket.c:2575 [inline] __do_sys_sendmsg net/socket.c:2584 [inline] __se_sys_sendmsg net/socket.c:2582 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f4288489109 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4289502168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f428859bf60 RCX: 00007f4288489109 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000006 RBP: 00007f42884e305d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5f4f1c5f R14: 00007f4289502300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:274 [inline] RIP: 0010:hrtimer_active+0x6b/0x1f0 kernel/time/hrtimer.c:1611 Code: 01 f0 48 89 44 24 10 e8 83 f3 0f 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:ffffc9000390ed18 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff88804cdba120 RCX: ffffc90005c94000 RDX: 0000000000040000 RSI: ffffffff816a7e8d RDI: ffff88804cdba120 RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000004 R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88804cdba120 R14: dffffc0000000000 R15: ffffed10099b7402 FS: 00007f4289502700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2eb3a000 CR3: 000000007dcb2000 CR4: 00000000003506e0 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 83 f3 0f 00 callq 0xff38f 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