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1b483d9f58
Ido Schimmel reports a memleak on a syzkaller instance:
BUG: memory leak
unreferenced object 0xffff88803d45e400 (size 1024):
comm "syz-executor292", pid 563, jiffies 4295025223 (age 51.781s)
hex dump (first 32 bytes):
28 bd 70 00 fb db df 25 02 00 14 1f ff 02 00 02 (.p....%........
00 32 00 00 1f 00 00 00 ac 14 14 3e 08 00 07 00 .2.........>....
backtrace:
[<ffffffff81bd0f2c>] kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]
[<ffffffff81bd0f2c>] slab_post_alloc_hook mm/slab.h:772 [inline]
[<ffffffff81bd0f2c>] slab_alloc_node mm/slub.c:3452 [inline]
[<ffffffff81bd0f2c>] __kmem_cache_alloc_node+0x25c/0x320 mm/slub.c:3491
[<ffffffff81a865d9>] __do_kmalloc_node mm/slab_common.c:966 [inline]
[<ffffffff81a865d9>] __kmalloc+0x59/0x1a0 mm/slab_common.c:980
[<ffffffff83aa85c3>] kmalloc include/linux/slab.h:584 [inline]
[<ffffffff83aa85c3>] tcf_pedit_init+0x793/0x1ae0 net/sched/act_pedit.c:245
[<ffffffff83a90623>] tcf_action_init_1+0x453/0x6e0 net/sched/act_api.c:1394
[<ffffffff83a90e58>] tcf_action_init+0x5a8/0x950 net/sched/act_api.c:1459
[<ffffffff83a96258>] tcf_action_add+0x118/0x4e0 net/sched/act_api.c:1985
[<ffffffff83a96997>] tc_ctl_action+0x377/0x490 net/sched/act_api.c:2044
[<ffffffff83920a8d>] rtnetlink_rcv_msg+0x46d/0xd70 net/core/rtnetlink.c:6395
[<ffffffff83b24305>] netlink_rcv_skb+0x185/0x490 net/netlink/af_netlink.c:2575
[<ffffffff83901806>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6413
[<ffffffff83b21cae>] netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
[<ffffffff83b21cae>] netlink_unicast+0x5be/0x8a0 net/netlink/af_netlink.c:1365
[<ffffffff83b2293f>] netlink_sendmsg+0x9af/0xed0 net/netlink/af_netlink.c:1942
[<ffffffff8380c39f>] sock_sendmsg_nosec net/socket.c:724 [inline]
[<ffffffff8380c39f>] sock_sendmsg net/socket.c:747 [inline]
[<ffffffff8380c39f>] ____sys_sendmsg+0x3ef/0xaa0 net/socket.c:2503
[<ffffffff838156d2>] ___sys_sendmsg+0x122/0x1c0 net/socket.c:2557
[<ffffffff8381594f>] __sys_sendmsg+0x11f/0x200 net/socket.c:2586
[<ffffffff83815ab0>] __do_sys_sendmsg net/socket.c:2595 [inline]
[<ffffffff83815ab0>] __se_sys_sendmsg net/socket.c:2593 [inline]
[<ffffffff83815ab0>] __x64_sys_sendmsg+0x80/0xc0 net/socket.c:2593
The recently added static offset check missed a free to the key buffer when
bailing out on error.
Fixes:
|
||
|---|---|---|
| .. | ||
| 6lowpan | ||
| 9p | ||
| 802 | ||
| 8021q | ||
| appletalk | ||
| atm | ||
| ax25 | ||
| batman-adv | ||
| bluetooth | ||
| bpf | ||
| bpfilter | ||
| bridge | ||
| caif | ||
| can | ||
| ceph | ||
| core | ||
| dcb | ||
| dccp | ||
| devlink | ||
| dns_resolver | ||
| dsa | ||
| ethernet | ||
| ethtool | ||
| handshake | ||
| hsr | ||
| ieee802154 | ||
| ife | ||
| ipv4 | ||
| ipv6 | ||
| iucv | ||
| kcm | ||
| key | ||
| l2tp | ||
| l3mdev | ||
| lapb | ||
| llc | ||
| mac80211 | ||
| mac802154 | ||
| mctp | ||
| mpls | ||
| mptcp | ||
| ncsi | ||
| netfilter | ||
| netlabel | ||
| netlink | ||
| netrom | ||
| nfc | ||
| nsh | ||
| openvswitch | ||
| packet | ||
| phonet | ||
| psample | ||
| qrtr | ||
| rds | ||
| rfkill | ||
| rose | ||
| rxrpc | ||
| sched | ||
| sctp | ||
| smc | ||
| strparser | ||
| sunrpc | ||
| switchdev | ||
| tipc | ||
| tls | ||
| unix | ||
| vmw_vsock | ||
| wireless | ||
| x25 | ||
| xdp | ||
| xfrm | ||
| compat.c | ||
| devres.c | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| socket.c | ||
| sysctl_net.c | ||