Messages in this thread | | | Date | Mon, 02 Dec 2019 10:05:08 -0800 | Subject | memory leak in register_netdevice | From | syzbot <> |
| |
Hello,
syzbot found the following crash on:
HEAD commit: a6ed68d6 Merge tag 'drm-next-2019-11-27' of git://anongit... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1469ab12e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=d47416a80b409a86 dashboard link: https://syzkaller.appspot.com/bug?extid=6e13e65ffbaa33757bcb compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16cd0b12e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16e1e536e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+6e13e65ffbaa33757bcb@syzkaller.appspotmail.com
executing program executing program executing program executing program executing program BUG: memory leak unreferenced object 0xffff88811736a900 (size 64): comm "syz-executor255", pid 6961, jiffies 4294941312 (age 18.230s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 a9 36 17 81 88 ff ff 10 a9 36 17 81 88 ff ff ..6.......6..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff888115549040 (size 64): comm "syz-executor255", pid 6968, jiffies 4294941312 (age 18.230s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 50 90 54 15 81 88 ff ff 50 90 54 15 81 88 ff ff P.T.....P.T..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff88811736a900 (size 64): comm "syz-executor255", pid 6961, jiffies 4294941312 (age 19.240s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 a9 36 17 81 88 ff ff 10 a9 36 17 81 88 ff ff ..6.......6..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff888115549040 (size 64): comm "syz-executor255", pid 6968, jiffies 4294941312 (age 19.240s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 50 90 54 15 81 88 ff ff 50 90 54 15 81 88 ff ff P.T.....P.T..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff88811736a900 (size 64): comm "syz-executor255", pid 6961, jiffies 4294941312 (age 21.120s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 a9 36 17 81 88 ff ff 10 a9 36 17 81 88 ff ff ..6.......6..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff888115549040 (size 64): comm "syz-executor255", pid 6968, jiffies 4294941312 (age 21.120s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 50 90 54 15 81 88 ff ff 50 90 54 15 81 88 ff ff P.T.....P.T..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff88811736a900 (size 64): comm "syz-executor255", pid 6961, jiffies 4294941312 (age 22.100s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 a9 36 17 81 88 ff ff 10 a9 36 17 81 88 ff ff ..6.......6..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff888115549040 (size 64): comm "syz-executor255", pid 6968, jiffies 4294941312 (age 22.100s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 50 90 54 15 81 88 ff ff 50 90 54 15 81 88 ff ff P.T.....P.T..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff88811736a900 (size 64): comm "syz-executor255", pid 6961, jiffies 4294941312 (age 23.060s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 a9 36 17 81 88 ff ff 10 a9 36 17 81 88 ff ff ..6.......6..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
BUG: memory leak unreferenced object 0xffff888115549040 (size 64): comm "syz-executor255", pid 6968, jiffies 4294941312 (age 23.060s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 50 90 54 15 81 88 ff ff 50 90 54 15 81 88 ff ff P.T.....P.T..... backtrace: [<000000000bce4d97>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000000bce4d97>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000000bce4d97>] slab_alloc mm/slab.c:3319 [inline] [<000000000bce4d97>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000005351be03>] kmalloc include/linux/slab.h:556 [inline] [<000000005351be03>] netdev_name_node_alloc+0x2a/0x70 net/core/dev.c:237 [<00000000e51ce12a>] netdev_name_node_head_alloc net/core/dev.c:251 [inline] [<00000000e51ce12a>] register_netdevice+0xaf/0x650 net/core/dev.c:9239 [<000000001e7bad43>] bond_newlink drivers/net/bonding/bond_netlink.c:458 [inline] [<000000001e7bad43>] bond_newlink+0x41/0x80 drivers/net/bonding/bond_netlink.c:448 [<00000000651af2f0>] __rtnl_newlink+0x89a/0xb80 net/core/rtnetlink.c:3303 [<00000000360e9df5>] rtnl_newlink+0x4e/0x80 net/core/rtnetlink.c:3361 [<00000000e011064d>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5422 [<000000007efb805f>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477 [<00000000bbcbc561>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5440 [<00000000cf032e1c>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] [<00000000cf032e1c>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328 [<000000008792feaf>] netlink_sendmsg+0x29f/0x550 net/netlink/af_netlink.c:1917 [<00000000a2c65b59>] sock_sendmsg_nosec net/socket.c:638 [inline] [<00000000a2c65b59>] sock_sendmsg+0x54/0x70 net/socket.c:658 [<000000005b5b243c>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2329 [<000000000b7158e8>] __sys_sendmsg+0x80/0xf0 net/socket.c:2374 [<00000000e52f982c>] __do_sys_sendmsg net/socket.c:2383 [inline] [<00000000e52f982c>] __se_sys_sendmsg net/socket.c:2381 [inline] [<00000000e52f982c>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2381 [<00000000a4e97677>] do_syscall_64+0x73/0x220 arch/x86/entry/common.c:294
executing program executing program executing program
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