================================================================================ UBSAN: Undefined behaviour in net/mac80211/cfg.c:491:9 index 255 is out of range for type 'ieee80211_key *[6]' CPU: 0 PID: 12206 Comm: syz-executor.1 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:00007fd662d00c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002b140 RCX: 000000000045de59 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff11dd579f R14: 00007fd662d019c0 R15: 000000000118bf2c ================================================================================ TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): group descriptors corrupted! IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (loop2): VFS: Can't find ext4 filesystem IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop0): Unrecognized mount option "€" or missing value EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop0): failed to parse options in superblock: € EXT4-fs (loop0): mounted filesystem without journal. Opts: €; ,errors=continue EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem audit: type=1804 audit(1602805937.098:22): pid=12671 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir182884581/syzkaller.AlusRX/244/file0" dev="sda1" ino=16307 res=1 syz-executor.1 (12652) used greatest stack depth: 23392 bytes left EXT4-fs (loop2): VFS: Can't find ext4 filesystem netlink: 80 bytes leftover after parsing attributes in process `syz-executor.5'. EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop2): VFS: Can't find ext4 filesystem capability: warning: `syz-executor.0' uses deprecated v2 capabilities in a way that may be insecure EXT4-fs (loop2): VFS: Can't find ext4 filesystem input: syz0 as /devices/virtual/input/input11 input: syz0 as /devices/virtual/input/input12 EXT4-fs (loop2): VFS: Can't find ext4 filesystem EXT4-fs (loop2): VFS: Can't find ext4 filesystem audit: type=1326 audit(1602805939.838:23): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12845 comm="syz-executor.4" exe="/root/syz-executor.4" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 EXT4-fs (loop2): VFS: Can't find ext4 filesystem audit: type=1326 audit(1602805940.538:24): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12845 comm="syz-executor.4" exe="/root/syz-executor.4" sig=31 arch=c000003e syscall=228 compat=0 ip=0x460cba code=0x0 EXT4-fs (loop2): VFS: Can't find ext4 filesystem input: syz1 as /devices/virtual/input/input13 input: syz1 as /devices/virtual/input/input14