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: 11064 Comm: syz-executor.0 Not tainted 5.1.0-rc4+ #142 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ieee80211_debugfs_rename_netdev+0xd1/0x14d net/mac80211/debugfs_netdev.c:848 Code: 05 00 00 48 c7 c6 a0 eb 13 88 4c 89 fa 4c 89 f7 e8 04 ec 45 00 49 8d 7d 40 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 6f 49 8b 7d 40 4c 89 f1 4c 89 ee 48 89 fa e8 87 f7 RSP: 0018:ffff888064806dd0 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: ffff88805e6848c0 RCX: 1ffff1100c900d8c RDX: 0000000000000005 RSI: 0000000000000000 RDI: 000000000000002f RBP: ffff888064806e70 R08: ffff8880a17fe1c0 R09: ffffed100c900dbf R10: ffffed100c900dbe R11: ffff888064806df6 R12: 1ffff1100c900dba R13: ffffffffffffffef R14: ffff888064806df0 R15: ffff88805e685910 FS: 00007f9e156b1700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcfc757d5c CR3: 00000000a17fc000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netdev_notify+0x1f9/0x260 net/mac80211/iface.c:1989 notifier_call_chain+0xc7/0x240 kernel/notifier.c:93 __raw_notifier_call_chain kernel/notifier.c:394 [inline] raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1739 call_netdevice_notifiers_extack net/core/dev.c:1751 [inline] call_netdevice_notifiers net/core/dev.c:1765 [inline] dev_change_name+0x524/0xa00 net/core/dev.c:1234 do_setlink+0x2a51/0x3510 net/core/rtnetlink.c:2466 rtnl_setlink+0x271/0x3b0 net/core/rtnetlink.c:2747 rtnetlink_rcv_msg+0x465/0xb00 net/core/rtnetlink.c:5195 netlink_rcv_skb+0x17a/0x460 net/netlink/af_netlink.c:2485 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5213 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x536/0x720 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:661 sock_write_iter+0x27c/0x3e0 net/socket.c:988 call_write_iter include/linux/fs.h:1866 [inline] do_iter_readv_writev+0x5e1/0x8e0 fs/read_write.c:681 do_iter_write fs/read_write.c:957 [inline] do_iter_write+0x184/0x610 fs/read_write.c:938 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1002 do_writev+0x15e/0x370 fs/read_write.c:1037 __do_sys_writev fs/read_write.c:1110 [inline] __se_sys_writev fs/read_write.c:1107 [inline] __x64_sys_writev+0x75/0xb0 fs/read_write.c:1107 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:00007f9e156b0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9e156b16d4 R13: 00000000004c5996 R14: 00000000004df0e0 R15: 00000000ffffffff Modules linked in: ---[ end trace b3e2d9aa1858d57a ]--- RIP: 0010:ieee80211_debugfs_rename_netdev+0xd1/0x14d net/mac80211/debugfs_netdev.c:848 Code: 05 00 00 48 c7 c6 a0 eb 13 88 4c 89 fa 4c 89 f7 e8 04 ec 45 00 49 8d 7d 40 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 6f 49 8b 7d 40 4c 89 f1 4c 89 ee 48 89 fa e8 87 f7 RSP: 0018:ffff888064806dd0 EFLAGS: 00010207 RAX: dffffc0000000000 RBX: ffff88805e6848c0 RCX: 1ffff1100c900d8c RDX: 0000000000000005 RSI: 0000000000000000 RDI: 000000000000002f RBP: ffff888064806e70 R08: ffff8880a17fe1c0 R09: ffffed100c900dbf R10: ffffed100c900dbe R11: ffff888064806df6 R12: 1ffff1100c900dba R13: ffffffffffffffef R14: ffff888064806df0 R15: ffff88805e685910 FS: 00007f9e156b1700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000000a17fc000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400