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Calling tipc_mon_delete() before the monitor has been created will oops. This can happen in tipc_enable_bearer() error path if tipc_disc_create() fails. [ 48.589074] BUG: unable to handle kernel paging request at 0000000000001008 [ 48.590266] IP: tipc_mon_delete+0xea/0x270 [tipc] [ 48.591223] PGD 1e60c5067 P4D 1e60c5067 PUD 1eb0cf067 PMD 0 [ 48.592230] Oops: 0000 [#1] SMP KASAN [ 48.595610] CPU: 5 PID: 1199 Comm: tipc Tainted: G B 4.15.0-rc4-pc64-dirty #5 [ 48.597176] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-2.fc27 04/01/2014 [ 48.598489] RIP: 0010:tipc_mon_delete+0xea/0x270 [tipc] [ 48.599347] RSP: 0018:ffff8801d827f668 EFLAGS: 00010282 [ 48.600705] RAX: ffff8801ee813f00 RBX: 0000000000000204 RCX: 0000000000000000 [ 48.602183] RDX: 1ffffffff1de6a75 RSI: 0000000000000297 RDI: 0000000000000297 [ 48.604373] RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1dd1533 [ 48.605607] R10: ffffffff8eafbb05 R11: fffffbfff1dd1534 R12: 0000000000000050 [ 48.607082] R13: dead000000000200 R14: ffffffff8e73f310 R15: 0000000000001020 [ 48.608228] FS: 00007fc686484800(0000) GS:ffff8801f5540000(0000) knlGS:0000000000000000 [ 48.610189] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.611459] CR2: 0000000000001008 CR3: 00000001dda70002 CR4: 00000000003606e0 [ 48.612759] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.613831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.615038] Call Trace: [ 48.615635] tipc_enable_bearer+0x415/0x5e0 [tipc] [ 48.620623] tipc_nl_bearer_enable+0x1ab/0x200 [tipc] [ 48.625118] genl_family_rcv_msg+0x36b/0x570 [ 48.631233] genl_rcv_msg+0x5a/0xa0 [ 48.631867] netlink_rcv_skb+0x1cc/0x220 [ 48.636373] genl_rcv+0x24/0x40 [ 48.637306] netlink_unicast+0x29c/0x350 [ 48.639664] netlink_sendmsg+0x439/0x590 [ 48.642014] SYSC_sendto+0x199/0x250 [ 48.649912] do_syscall_64+0xfd/0x2c0 [ 48.650651] entry_SYSCALL64_slow_path+0x25/0x25 [ 48.651843] RIP: 0033:0x7fc6859848e3 [ 48.652539] RSP: 002b:00007ffd25dff938 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 48.654003] RAX: ffffffffffffffda RBX: 00007ffd25dff990 RCX: 00007fc6859848e3 [ 48.655303] RDX: 0000000000000054 RSI: 00007ffd25dff990 RDI: 0000000000000003 [ 48.656512] RBP: 00007ffd25dff980 R08: 00007fc685c35fc0 R09: 000000000000000c [ 48.657697] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000d13010 [ 48.658840] R13: 00007ffd25e009c0 R14: 0000000000000000 R15: 0000000000000000 [ 48.662972] RIP: tipc_mon_delete+0xea/0x270 [tipc] RSP: ffff8801d827f668 [ 48.664073] CR2: 0000000000001008 [ 48.664576] ---[ end trace e811818d54d5ce88 ]--- Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| 6lowpan | ||
| 9p | ||
| 802 | ||
| 8021q | ||
| appletalk | ||
| atm | ||
| ax25 | ||
| batman-adv | ||
| bluetooth | ||
| bpf | ||
| bridge | ||
| caif | ||
| can | ||
| ceph | ||
| core | ||
| dcb | ||
| dccp | ||
| decnet | ||
| dns_resolver | ||
| dsa | ||
| ethernet | ||
| hsr | ||
| ieee802154 | ||
| ife | ||
| ipv4 | ||
| ipv6 | ||
| ipx | ||
| iucv | ||
| kcm | ||
| key | ||
| l2tp | ||
| l3mdev | ||
| lapb | ||
| llc | ||
| mac80211 | ||
| mac802154 | ||
| mpls | ||
| 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 | ||
| wimax | ||
| wireless | ||
| x25 | ||
| xfrm | ||
| compat.c | ||
| Kconfig | ||
| Makefile | ||
| socket.c | ||
| sysctl_net.c | ||