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d139ff0907
linux_dsm_epyc7002/net/rds
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Andy Grover d139ff0907 RDS: Let rds_message_alloc_sgs() return NULL 
Even with the previous fix, we still are reading the iovecs once
to determine SGs needed, and then again later on. Preallocating
space for sg lists as part of rds_message seemed like a good idea
but it might be better to not do this. While working to redo that
code, this patch attempts to protect against userspace rewriting
the rds_iovec array between the first and second accesses.

The consequences of this would be either a too-small or too-large
sg list array. Too large is not an issue. This patch changes all
callers of message_alloc_sgs to handle running out of preallocated
sgs, and fail gracefully.

Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-30 16:34:18 -07:00
..
af_rds.c RDS/IB: print string constants in more places 2010-09-08 18:16:50 -07:00
bind.c rds: Use RCU for the bind lookup searches 2010-09-08 18:15:08 -07:00
cong.c RDS: Bypass workqueue when queueing cong updates 2010-09-08 18:12:16 -07:00
connection.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
ib_cm.c rds: double unlock in rds_ib_cm_handle_connect() 2010-09-19 11:59:44 -07:00
ib_rdma.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
ib_recv.c RDS/IB: print string constants in more places 2010-09-08 18:16:50 -07:00
ib_ring.c RDS/IW+IB: Set recv ring low water mark to 1/2 full. 2009-04-09 17:21:14 -07:00
ib_send.c RDS: Implement masked atomic operations 2010-09-08 18:16:51 -07:00
ib_stats.c RDS: Move atomic stats from general to ib-specific area 2010-09-08 18:12:20 -07:00
ib_sysctl.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
ib.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
ib.h rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
info.c RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons 2010-09-08 18:11:32 -07:00
info.h RDS: Info and stats 2009-02-26 23:39:25 -08:00
iw_cm.c RDS: cleanup: remove "== NULL"s and "!= NULL"s in ptr comparisons 2010-09-08 18:11:32 -07:00
iw_rdma.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
iw_recv.c RDS: remove __init and __exit annotation 2010-09-08 18:16:39 -07:00
iw_ring.c RDS/IW+IB: Set recv ring low water mark to 1/2 full. 2009-04-09 17:21:14 -07:00
iw_send.c RDS: Rename data op members prefix from m_ to op_ 2010-09-08 18:11:59 -07:00
iw_stats.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-09-15 09:39:44 -07:00
iw_sysctl.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
iw.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
iw.h rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
Kconfig RDS: Modularize RDMA and TCP transports 2009-08-23 19:13:09 -07:00
loop.c RDS: Stop supporting old cong map sending method 2010-09-08 18:12:10 -07:00
loop.h RDS: loopback 2009-02-26 23:39:26 -08:00
Makefile RDS: Modularize RDMA and TCP transports 2009-08-23 19:13:09 -07:00
message.c RDS: Let rds_message_alloc_sgs() return NULL 2010-10-30 16:34:18 -07:00
page.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-10-21 08:43:05 -07:00
rdma_transport.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
rdma_transport.h rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
rdma.c RDS: Let rds_message_alloc_sgs() return NULL 2010-10-30 16:34:18 -07:00
rds.h rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
recv.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
send.c RDS: Let rds_message_alloc_sgs() return NULL 2010-10-30 16:34:18 -07:00
stats.c RDS: remove __init and __exit annotation 2010-09-08 18:16:39 -07:00
sysctl.c RDS: remove __init and __exit annotation 2010-09-08 18:16:39 -07:00
tcp_connect.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
tcp_listen.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-09-27 01:03:03 -07:00
tcp_recv.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
tcp_send.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
tcp_stats.c RDS: Add TCP transport to RDS 2009-08-23 19:13:02 -07:00
tcp.c rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
tcp.h rds: make local functions/variables static 2010-10-21 04:26:39 -07:00
threads.c RDS: remove __init and __exit annotation 2010-09-08 18:16:39 -07:00
transport.c RDS: have sockets get transport module references 2010-09-08 18:16:47 -07:00
xlist.h RDS: Remove unused XLIST_PTR_TAIL and xlist_protect() 2010-09-08 18:16:06 -07:00