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8c2f826dc3
android_kernel_asus_sm8350/net/rxrpc
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David Howells 8c2f826dc3 rxrpc: Don't put crypto buffers on the stack 
Don't put buffers of data to be handed to crypto on the stack as this may
cause an assertion failure in the kernel (see below).  Fix this by using an
kmalloc'd buffer instead.

kernel BUG at ./include/linux/scatterlist.h:147!
...
RIP: 0010:rxkad_encrypt_response.isra.6+0x191/0x1b0 [rxrpc]
RSP: 0018:ffffbe2fc06cfca8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff989277d59900 RCX: 0000000000000028
RDX: 0000259dc06cfd88 RSI: 0000000000000025 RDI: ffffbe30406cfd88
RBP: ffffbe2fc06cfd60 R08: ffffbe2fc06cfd08 R09: ffffbe2fc06cfd08
R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff7c5f80d9f95
R13: ffffbe2fc06cfd88 R14: ffff98927a3f7aa0 R15: ffffbe2fc06cfd08
FS:  0000000000000000(0000) GS:ffff98927fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b1ff28f0f8 CR3: 000000001b412003 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rxkad_respond_to_challenge+0x297/0x330 [rxrpc]
 rxrpc_process_connection+0xd1/0x690 [rxrpc]
 ? process_one_work+0x1c3/0x680
 ? __lock_is_held+0x59/0xa0
 process_one_work+0x249/0x680
 worker_thread+0x3a/0x390
 ? process_one_work+0x680/0x680
 kthread+0x121/0x140
 ? kthread_create_worker_on_cpu+0x70/0x70
 ret_from_fork+0x3a/0x50

Reported-by: Jonathan Billings <jsbillings@jsbillings.org>
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Jonathan Billings <jsbillings@jsbillings.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08 13:48:29 -05:00
..
af_rxrpc.c Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-30 17:58:07 -08:00
ar-internal.h rxrpc: Fix conn expiry timers 2017-11-24 10:18:42 +00:00
call_accept.c rxrpc: Provide a different lockdep key for call->user_mutex for kernel calls 2017-11-24 10:18:40 +00:00
call_event.c rxrpc: Fix variable overwrite 2017-11-29 14:44:22 +00:00
call_object.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-29 13:10:25 -08:00
conn_client.c rxrpc: Fix received abort handling 2018-02-07 21:47:10 -05:00
conn_event.c rxrpc: Don't put crypto buffers on the stack 2018-02-08 13:48:29 -05:00
conn_object.c rxrpc: Fix received abort handling 2018-02-07 21:47:10 -05:00
conn_service.c rxrpc: Make service connection lookup always check for retry 2017-09-05 14:39:17 -07:00
input.c rxrpc: Clean up whitespace 2017-11-29 14:40:41 +00:00
insecure.c rxrpc: Trace protocol errors in received packets 2017-04-06 11:09:39 +01:00
Kconfig rxrpc: Add config to inject packet loss 2016-09-17 11:24:04 +01:00
key.c rxrpc: Use correct timestamp from Kerberos 5 ticket 2017-08-29 10:55:06 +01:00
local_event.c rxrpc: Fix IPv6 support 2017-08-29 10:55:20 +01:00
local_object.c rxrpc: Permit multiple service binding 2017-06-05 14:30:49 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
misc.c rxrpc: Fix call timeouts 2017-11-24 10:18:41 +00:00
net_ns.c rxrpc: Fix conn expiry timers 2017-11-24 10:18:42 +00:00
output.c rxrpc: Add keepalive for a call 2017-11-24 10:18:42 +00:00
peer_event.c rxrpc: Fix IPv6 support 2017-08-29 10:55:20 +01:00
peer_object.c rxrpc: Provide functions for allowing cleaner handling of signals 2017-10-18 11:42:48 +01:00
proc.c net: delete /proc THIS_MODULE references 2018-01-16 15:01:33 -05:00
protocol.h rxrpc: Move the packet.h include file into net/rxrpc/ 2017-07-21 11:00:20 +01:00
recvmsg.c rxrpc: Add a timeout for detecting lost ACKs/lost DATA 2017-11-24 10:18:42 +00:00
rxkad.c rxrpc: Don't put crypto buffers on the stack 2018-02-08 13:48:29 -05:00
security.c rxrpc: Permit multiple service binding 2017-06-05 14:30:49 +01:00
sendmsg.c rxrpc: Fix variable overwrite 2017-11-29 14:44:22 +00:00
skbuff.c net: convert sk_buff.users from atomic_t to refcount_t 2017-07-01 07:39:07 -07:00
sysctl.c rxrpc: Fix call timeouts 2017-11-24 10:18:41 +00:00
utils.c rxrpc: Fix IPv6 support 2017-08-29 10:55:20 +01:00