memory leak in hwsim_new_radio

Title	Replies (including bot)	Last reply
[PATCH net-next,v2] mac80211_hwsim: fix memory leak in hwsim_new_radio_nl	4 (4)	2023/05/15 13:05
[PATCH net-next] mac80211_hwsim: fix memory leak in hwsim_new_radio_nl	3 (3)	2023/05/15 09:07
[syzbot] [wireless?] memory leak in hwsim_new_radio_nl	1 (2)	2023/05/15 02:45

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