kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 17993 Comm: syz-executor.5 Not tainted 5.2.0-rc3+ #56 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dst_dev_put+0x24/0x280 net/core/dst.c:156 Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 2d b7 eb fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e1 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 RSP: 0018:ffff8880ae809d48 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 000000000000022a RCX: 1ffffffff130184e RDX: 0000000000000045 RSI: ffffffff8584ef53 RDI: 000000000000022a RBP: ffff8880ae809d68 R08: ffff8880698e82c0 R09: ffff8880698e8b88 R10: ffff8880698e8b68 R11: ffff8880698e82c0 R12: 0000000000000001 R13: 0000000000000007 R14: 000000000000022a R15: 0000607f51477150 FS: 00007fdf8d150700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf8d0ecdb8 CR3: 000000009f347000 CR4: 00000000001406f0 Call Trace: rt_fibinfo_free_cpus.part.0+0xdb/0x130 net/ipv4/fib_semantics.c:198 rt_fibinfo_free_cpus net/ipv4/fib_semantics.c:190 [inline] fib_nh_common_release+0x107/0x280 net/ipv4/fib_semantics.c:211 fib_nh_release net/ipv4/fib_semantics.c:223 [inline] free_fib_info_rcu+0x117/0x210 net/ipv4/fib_semantics.c:232 __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:293 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1040 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:338 do_softirq kernel/softirq.c:330 [inline] __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:190 __raw_write_unlock_bh include/linux/rwlock_api_smp.h:275 [inline] _raw_write_unlock_bh+0x31/0x40 kernel/locking/spinlock.c:351 pneigh_ifdown_and_unlock net/core/neighbour.c:804 [inline] __neigh_ifdown+0x16c/0x2f0 net/core/neighbour.c:356 neigh_ifdown+0x20/0x30 net/core/neighbour.c:372 rt6_disable_ip+0x534/0x5f0 net/ipv6/route.c:4172 addrconf_ifdown+0xa2/0x1220 net/ipv6/addrconf.c:3705 addrconf_notify+0x5db/0x2270 net/ipv6/addrconf.c:3630 notifier_call_chain+0xc2/0x230 kernel/notifier.c:95 __raw_notifier_call_chain kernel/notifier.c:396 [inline] raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:403 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1749 call_netdevice_notifiers_extack net/core/dev.c:1761 [inline] call_netdevice_notifiers net/core/dev.c:1775 [inline] __dev_notify_flags+0x1e9/0x2c0 net/core/dev.c:7618 dev_change_flags+0x10d/0x170 net/core/dev.c:7654 devinet_ioctl+0x138a/0x1c50 net/ipv4/devinet.c:1100 inet_ioctl+0x1f4/0x340 net/ipv4/af_inet.c:948 sock_do_ioctl+0xd8/0x2f0 net/socket.c:1043 sock_ioctl+0x3ed/0x780 net/socket.c:1194 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4592c9 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fdf8d14fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004592c9 RDX: 0000000020000000 RSI: 0000000000008914 RDI: 0000000000000007 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdf8d1506d4 R13: 00000000004c4f17 R14: 00000000004d8f60 R15: 00000000ffffffff Modules linked in: ---[ end trace d4cc097d126245ac ]--- RIP: 0010:dst_dev_put+0x24/0x280 net/core/dst.c:156 Code: 90 90 90 90 90 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb e8 2d b7 eb fb 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e1 01 00 00 48 8d 7b 3a 4c 8b 23 48 b8 00 00 00 RSP: 0018:ffff8880ae809d48 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 000000000000022a RCX: 1ffffffff130184e RDX: 0000000000000045 RSI: ffffffff8584ef53 RDI: 000000000000022a RBP: ffff8880ae809d68 R08: ffff8880698e82c0 R09: ffff8880698e8b88 R10: ffff8880698e8b68 R11: ffff8880698e82c0 R12: 0000000000000001 R13: 0000000000000007 R14: 000000000000022a R15: 0000607f51477150 FS: 00007fdf8d150700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf8d0ecdb8 CR3: 000000009f347000 CR4: 00000000001406f0