netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. ================================================================================ UBSAN: Undefined behaviour in net/mac80211/cfg.c:491:9 index 255 is out of range for type 'ieee80211_key *[6]' CPU: 0 PID: 24927 Comm: syz-executor.5 Not tainted 4.19.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_out_of_bounds.cold+0x63/0x6f lib/ubsan.c:383 ieee80211_del_key+0x48a/0x490 net/mac80211/cfg.c:491 rdev_del_key net/wireless/rdev-ops.h:106 [inline] nl80211_del_key+0x41e/0xc50 net/wireless/nl80211.c:3650 genl_family_rcv_msg+0x6bf/0xd50 net/netlink/genetlink.c:602 genl_rcv_msg+0xdf/0x1b0 net/netlink/genetlink.c:627 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 ___sys_sendmsg+0x7bb/0x8f0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f724658fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002b140 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffdc4cbf02f R14: 00007f72465909c0 R15: 000000000118bf2c ================================================================================ netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. FAT-fs (loop1): bogus number of reserved sectors FAT-fs (loop1): Can't find a valid FAT filesystem netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. FAT-fs (loop1): bogus number of reserved sectors FAT-fs (loop1): Can't find a valid FAT filesystem sctp_transport_update_pmtu: 7 callbacks suppressed sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 Bluetooth: hci0: command 0x2031 tx timeout FAT-fs (loop1): bogus number of reserved sectors FAT-fs (loop1): Can't find a valid FAT filesystem skbuff: bad partial csum: csum=47675/48546 headroom=64 headlen=64823 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 FAT-fs (loop1): bogus number of reserved sectors FAT-fs (loop1): Can't find a valid FAT filesystem skbuff: bad partial csum: csum=47675/48546 headroom=64 headlen=64823 Bluetooth: hci0: command 0x2031 tx timeout skbuff: bad partial csum: csum=47675/48546 headroom=64 headlen=64823 skbuff: bad partial csum: csum=47675/48546 headroom=64 headlen=64823 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. sctp: [Deprecated]: syz-executor.4 (pid 25206) Use of int in maxseg socket option. Use struct sctp_assoc_value instead Bluetooth: hci0: command 0x2031 tx timeout netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. sctp: [Deprecated]: syz-executor.4 (pid 25233) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. sctp: [Deprecated]: syz-executor.4 (pid 25248) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. sctp: [Deprecated]: syz-executor.4 (pid 25271) Use of int in maxseg socket option. Use struct sctp_assoc_value instead device lo entered promiscuous mode device lo left promiscuous mode netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. sctp_transport_update_pmtu: 4 callbacks suppressed sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 sctp: sctp_transport_update_pmtu: Reported pmtu 80 too low, using default minimum of 512 device lo entered promiscuous mode device lo left promiscuous mode audit: type=1804 audit(1602793745.352:114): pid=25286 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir735060926/syzkaller.xqDfKY/138/file1/file0" dev="loop5" ino=51 res=1 device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode audit: type=1804 audit(1602793746.202:115): pid=25329 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir735060926/syzkaller.xqDfKY/139/file0" dev="sda1" ino=15985 res=1 device lo entered promiscuous mode device lo left promiscuous mode Bluetooth: hci0: command 0x2031 tx timeout audit: type=1804 audit(1602793746.592:116): pid=25343 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir668296987/syzkaller.GPRWdU/135/file1/file0" dev="loop1" ino=52 res=1 audit: type=1804 audit(1602793746.612:117): pid=25345 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir095213173/syzkaller.dLUWyS/410/file1/file0" dev="loop2" ino=53 res=1 audit: type=1804 audit(1602793747.582:118): pid=25355 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir162307589/syzkaller.Nx4a0M/145/file1/file0" dev="loop0" ino=54 res=1 audit: type=1400 audit(1602793747.672:119): avc: denied { relabelto } for pid=25357 comm="syz-executor.3" name="X25" dev="sockfs" ino=76566 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:syslogd_var_lib_t:s0 tclass=socket permissive=1 audit: type=1804 audit(1602793747.802:120): pid=25364 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir735060926/syzkaller.xqDfKY/140/file1/file0" dev="loop5" ino=55 res=1 Bluetooth: hci0: command 0x0406 tx timeout audit: type=1804 audit(1602793748.332:121): pid=25373 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir668296987/syzkaller.GPRWdU/136/file1/file0" dev="loop1" ino=56 res=1 audit: type=1804 audit(1602793748.562:122): pid=25377 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir095213173/syzkaller.dLUWyS/411/file1/file0" dev="loop2" ino=57 res=1