Hello, syzbot found the following issue on: HEAD commit: aae5ab85 Merge tag 'riscv-for-linus-5.10-rc6' of git://git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1496d353500000 kernel config: https://syzkaller.appspot.com/x/.config?x=cb8d1a3819ba4356 dashboard link: https://syzkaller.appspot.com/bug?extid=49d4cab497c2142ee170 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1440c58d500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1743351d500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+49d4cab497c2142ee170@xxxxxxxxxxxxxxxxxxxxxxxxx ================================================================================ UBSAN: array-index-out-of-bounds in net/mac80211/cfg.c:520:10 index 5 is out of range for type 'ieee80211_key *[4]' CPU: 0 PID: 8535 Comm: syz-executor933 Not tainted 5.10.0-rc5-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+0x107/0x163 lib/dump_stack.c:118 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_out_of_bounds.cold+0x62/0x6c lib/ubsan.c:356 ieee80211_del_key+0x3f6/0x440 net/mac80211/cfg.c:520 rdev_del_key net/wireless/rdev-ops.h:107 [inline] nl80211_del_key+0x4b0/0x910 net/wireless/nl80211.c:4292 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x441ff9 Code: e8 ac 00 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffdb026c968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441ff9 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000002100000000 R09: 0000002100000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032 R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000004 ================================================================================ --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
