Hello, syzbot found the following issue on: HEAD commit: 105131df9c3b Merge tag 'dt-fixes-6.4' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1193dc92280000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa9562c0bfb72fa2 dashboard link: https://syzkaller.appspot.com/bug?extid=904ce6fbb38532d9795c compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b4577c280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14a9e29e280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/029c9c553eb9/disk-105131df.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c807843227d1/vmlinux-105131df.xz kernel image: https://storage.googleapis.com/syzbot-assets/dfce3441d47b/bzImage-105131df.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+904ce6fbb38532d9795c@xxxxxxxxxxxxxxxxxxxxxxxxx Warning: Permanently added '10.128.1.177' (ECDSA) to the list of known hosts. executing program executing program BUG: memory leak unreferenced object 0xffff88810e2ac920 (size 32): comm "syz-executor238", pid 4983, jiffies 4294944120 (age 14.000s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff815458a4>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff830fc4fb>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff830fc4fb>] hwsim_new_radio_nl+0x43b/0x660 drivers/net/wireless/virtual/mac80211_hwsim.c:5962 [<ffffffff83f4aa6e>] genl_family_rcv_msg_doit.isra.0+0xee/0x150 net/netlink/genetlink.c:968 [<ffffffff83f4ada7>] genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] [<ffffffff83f4ada7>] genl_rcv_msg+0x2d7/0x430 net/netlink/genetlink.c:1065 [<ffffffff83f49111>] netlink_rcv_skb+0x91/0x1e0 net/netlink/af_netlink.c:2546 [<ffffffff83f4a118>] genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 [<ffffffff83f4805b>] netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] [<ffffffff83f4805b>] netlink_unicast+0x39b/0x4d0 net/netlink/af_netlink.c:1365 [<ffffffff83f4852a>] netlink_sendmsg+0x39a/0x720 net/netlink/af_netlink.c:1913 [<ffffffff83db5258>] sock_sendmsg_nosec net/socket.c:724 [inline] [<ffffffff83db5258>] sock_sendmsg+0x58/0xb0 net/socket.c:747 [<ffffffff83db5817>] ____sys_sendmsg+0x397/0x430 net/socket.c:2503 [<ffffffff83db9e08>] ___sys_sendmsg+0xa8/0x110 net/socket.c:2557 [<ffffffff83db9fac>] __sys_sendmsg+0x8c/0x100 net/socket.c:2586 [<ffffffff84a127b9>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a127b9>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd BUG: memory leak unreferenced object 0xffff88810e2ac800 (size 32): comm "syz-executor238", pid 4984, jiffies 4294944700 (age 8.200s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff815458a4>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1057 [<ffffffff830fc4fb>] kmalloc include/linux/slab.h:559 [inline] [<ffffffff830fc4fb>] hwsim_new_radio_nl+0x43b/0x660 drivers/net/wireless/virtual/mac80211_hwsim.c:5962 [<ffffffff83f4aa6e>] genl_family_rcv_msg_doit.isra.0+0xee/0x150 net/netlink/genetlink.c:968 [<ffffffff83f4ada7>] genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] [<ffffffff83f4ada7>] genl_rcv_msg+0x2d7/0x430 net/netlink/genetlink.c:1065 [<ffffffff83f49111>] netlink_rcv_skb+0x91/0x1e0 net/netlink/af_netlink.c:2546 [<ffffffff83f4a118>] genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 [<ffffffff83f4805b>] netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] [<ffffffff83f4805b>] netlink_unicast+0x39b/0x4d0 net/netlink/af_netlink.c:1365 [<ffffffff83f4852a>] netlink_sendmsg+0x39a/0x720 net/netlink/af_netlink.c:1913 [<ffffffff83db5258>] sock_sendmsg_nosec net/socket.c:724 [inline] [<ffffffff83db5258>] sock_sendmsg+0x58/0xb0 net/socket.c:747 [<ffffffff83db5817>] ____sys_sendmsg+0x397/0x430 net/socket.c:2503 [<ffffffff83db9e08>] ___sys_sendmsg+0xa8/0x110 net/socket.c:2557 [<ffffffff83db9fac>] __sys_sendmsg+0x8c/0x100 net/socket.c:2586 [<ffffffff84a127b9>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84a127b9>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd --- 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. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
