================================================================================ UBSAN: Undefined behaviour in net/mac80211/cfg.c:491:9 index 255 is out of range for type 'ieee80211_key *[6]' CPU: 1 PID: 14109 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:00007feae4aa5c78 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: 00007fffeeab9faf R14: 00007feae4aa69c0 R15: 000000000118bf2c ================================================================================ netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. xt_CHECKSUM: CHECKSUM should be avoided. If really needed, restrict with "-p udp" and only use in OUTPUT x_tables: ip6_tables: rpfilter match: used from hooks FORWARD, but only valid from PREROUTING encrypted_key: keyword 'update' not allowed when called from .instantiate method [U] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. encrypted_key: keyword 'update' not allowed when called from .instantiate method netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. [U] EXT4-fs (loop0): warning: maximal mount count reached, running e2fsck is recommended EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [U] EXT4-fs (loop0): warning: maximal mount count reached, running e2fsck is recommended EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): warning: maximal mount count reached, running e2fsck is recommended hid-generic 01FF:0000:0000.0001: item fetching failed at offset 0/1 EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue hid-generic: probe of 01FF:0000:0000.0001 failed with error -22 hid-generic 01FF:0000:0000.0002: item fetching failed at offset 0/1 hid-generic: probe of 01FF:0000:0000.0002 failed with error -22 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. hid-generic 01FF:0000:0000.0003: item fetching failed at offset 0/1 hid-generic: probe of 01FF:0000:0000.0003 failed with error -22 EXT4-fs (loop0): warning: maximal mount count reached, running e2fsck is recommended netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue hid-generic 01FF:0000:0000.0004: item fetching failed at offset 0/1 hid-generic: probe of 01FF:0000:0000.0004 failed with error -22 hid-generic 01FF:0000:0000.0005: item fetching failed at offset 0/1 hid-generic: probe of 01FF:0000:0000.0005 failed with error -22 XFS (loop4): Invalid superblock magic number XFS (loop1): Invalid superblock magic number bridge_slave_0: FDB only supports static addresses bridge_slave_0: FDB only supports static addresses netlink: 'syz-executor.3': attribute type 13 has an invalid length. netlink: 'syz-executor.3': attribute type 13 has an invalid length. netlink: 'syz-executor.3': attribute type 13 has an invalid length. Cannot find add_set index 0 as target netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. Cannot find add_set index 0 as target XFS (loop1): Invalid superblock magic number netlink: 'syz-executor.3': attribute type 13 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. Cannot find add_set index 0 as target netlink: 'syz-executor.3': attribute type 13 has an invalid length. Cannot find add_set index 0 as target XFS (loop1): Invalid superblock magic number netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop4): ext4_check_descriptors: Inode bitmap for group 0 not in group (block 2332033028)! EXT4-fs (loop4): group descriptors corrupted! XFS (loop2): unknown mount option [permit_directio]. hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected audit: type=1804 audit(1602368449.478:55): pid=15131 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-testdir075372261/syzkaller.HEZFkv/205/file0/bus" dev="ramfs" ino=52456 res=1 XFS (loop2): unknown mount option [permit_directio].