commit 7c80eb1c7e2b8420477fbc998971d62a648035d9 upstream.
In both functions, if pfkey_xfrm_policy2msg failed we leaked the newly
allocated sk_buff. Free it on error.
Fixes: 55569ce256 ("Fix conversion between IPSEC_MODE_xxx and XFRM_MODE_xxx.")
Change-Id: I9ddc961fd70c2c2f30d56c10b5a322d1e780778d
Reported-by: syzbot+4f0529365f7f2208d9f0@syzkaller.appspotmail.com
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
There's a kmalloc with GFP_KERNEL in a helper
(pfkey_sadb2xfrm_user_sec_ctx) used in pfkey_compile_policy which is
called under rcu_read_lock. Adjust pfkey_sadb2xfrm_user_sec_ctx to have
a gfp argument and adjust the users.
CC: Dave Jones <davej@redhat.com>
CC: Steffen Klassert <steffen.klassert@secunet.com>
CC: Fan Du <fan.du@windriver.com>
CC: David S. Miller <davem@davemloft.net>
Change-Id: Id19a5c2b557f0dbdb57a4097e6d9432065c35e63
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
commit 096f41d3a8fcbb8dde7f71379b1ca85fe213eded upstream.
The parsing of sadb_x_ipsecrequest is broken in a number of ways.
First of all we're not verifying sadb_x_ipsecrequest_len. This
is needed when the structure carries addresses at the end. Worse
we don't even look at the length when we parse those optional
addresses.
The migration code had similar parsing code that's better but
it also has some deficiencies. The length is overcounted first
of all as it includes the header itself. It also fails to check
the length before dereferencing the sa_family field.
This patch fixes those problems in parse_sockaddr_pair and then
uses it in parse_ipsecrequest.
Change-Id: I45fc7347edda881dffe62ad84b526ad65680ab61
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change-Id: I4e15550da0a0c0f2ca21477a9e4ac11b16cf877d
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch replaces a comma between expression statements by a semicolon.
A simplified version of the semantic patch that performs this
transformation is as follows:
// <smpl>
@r@
expression e1,e2,e;
type T;
identifier i;
@@
e1
-,
+;
e2;
// </smpl>
Change-Id: Id485b4a0bd0065e85e67b1ccd7fefe069e2e3b1a
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Attempting to avoid cloning the skb when broadcasting by inflating
the refcount with sock_hold/sock_put while under RCU lock is dangerous
and violates RCU principles. It leads to subtle race conditions when
attempting to free the SKB, as we may reference sockets that have
already been freed by the stack.
Unable to handle kernel paging request at virtual address 6b6b6b6b6b6c4b
[006b6b6b6b6b6c4b] address between user and kernel address ranges
Internal error: Oops: 96000004 [#1] PREEMPT SMP
task: fffffff78f65b380 task.stack: ffffff8049a88000
pc : sock_rfree+0x38/0x6c
lr : skb_release_head_state+0x6c/0xcc
Process repro (pid: 7117, stack limit = 0xffffff8049a88000)
Call trace:
sock_rfree+0x38/0x6c
skb_release_head_state+0x6c/0xcc
skb_release_all+0x1c/0x38
__kfree_skb+0x1c/0x30
kfree_skb+0xd0/0xf4
pfkey_broadcast+0x14c/0x18c
pfkey_sendmsg+0x1d8/0x408
sock_sendmsg+0x44/0x60
___sys_sendmsg+0x1d0/0x2a8
__sys_sendmsg+0x64/0xb4
SyS_sendmsg+0x34/0x4c
el0_svc_naked+0x34/0x38
Kernel panic - not syncing: Fatal exception
CRs-Fixed: 2251019
Change-Id: Ib3b01f941a34a7df61fe9445f746b7df33f4656a
Signed-off-by: Sean Tranchetti <stranche@codeaurora.org>
commit 4e765b4972af7b07adcb1feb16e7a525ce1f6b28 upstream.
If a message sent to a PF_KEY socket ended with an incomplete extension
header (fewer than 4 bytes remaining), then parse_exthdrs() read past
the end of the message, into uninitialized memory. Fix it by returning
-EINVAL in this case.
Reproducer:
#include <linux/pfkeyv2.h>
#include <sys/socket.h>
#include <unistd.h>
int main()
{
int sock = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
char buf[17] = { 0 };
struct sadb_msg *msg = (void *)buf;
msg->sadb_msg_version = PF_KEY_V2;
msg->sadb_msg_type = SADB_DELETE;
msg->sadb_msg_len = 2;
write(sock, buf, 17);
}
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
commit 06b335cb51af018d5feeff5dd4fd53847ddb675a upstream.
If a message sent to a PF_KEY socket ended with one of the extensions
that takes a 'struct sadb_address' but there were not enough bytes
remaining in the message for the ->sa_family member of the 'struct
sockaddr' which is supposed to follow, then verify_address_len() read
past the end of the message, into uninitialized memory. Fix it by
returning -EINVAL in this case.
This bug was found using syzkaller with KMSAN.
Reproducer:
#include <linux/pfkeyv2.h>
#include <sys/socket.h>
#include <unistd.h>
int main()
{
int sock = socket(PF_KEY, SOCK_RAW, PF_KEY_V2);
char buf[24] = { 0 };
struct sadb_msg *msg = (void *)buf;
struct sadb_address *addr = (void *)(msg + 1);
msg->sadb_msg_version = PF_KEY_V2;
msg->sadb_msg_type = SADB_DELETE;
msg->sadb_msg_len = 3;
addr->sadb_address_len = 1;
addr->sadb_address_exttype = SADB_EXT_ADDRESS_SRC;
write(sock, buf, 24);
}
Reported-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
commit d90c902449a7561f1b1d58ba5a0d11728ce8b0b2 upstream.
The sadb_x_sec_len is stored in the unit 'byte divided by eight'.
So we have to multiply this value by eight before we can do
size checks. Otherwise we may get a slab-out-of-bounds when
we memcpy the user sec_ctx.
Fixes: df71837d50 ("[LSM-IPSec]: Security association restriction.")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
commit 1e3d0c2c70cd3edb5deed186c5f5c75f2b84a633 upstream.
There are some missing error codes here so we accidentally return NULL
instead of an error pointer. It results in a NULL pointer dereference.
Fixes: df71837d50 ("[LSM-IPSec]: Security association restriction.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
commit e747f64336fc15e1c823344942923195b800aa1e upstream.
The default error code in pfkey_msg2xfrm_state() is -ENOBUFS. We
added a new call to security_xfrm_state_alloc() which sets "err" to zero
so there several places where we can return ERR_PTR(0) if kmalloc()
fails. The caller is expecting error pointers so it leads to a NULL
dereference.
Fixes: df71837d50 ("[LSM-IPSec]: Security association restriction.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
The following commits have been reverted from this merge, as they are
known to introduce new bugs and are currently incompatible with our
audio implementation. Investigation of these commits is ongoing, and
they are expected to be brought in at a later time:
86e6de7 ALSA: compress: fix drain calls blocking other compress functions (v6)
16442d4 ALSA: compress: fix drain calls blocking other compress functions
This merge commit also includes a change in block, necessary for
compilation. Upstream has modified elevator_init_fn to prevent race
conditions, requring updates to row_init_queue and test_init_queue.
* commit 'v3.10.28': (1964 commits)
Linux 3.10.28
ARM: 7938/1: OMAP4/highbank: Flush L2 cache before disabling
drm/i915: Don't grab crtc mutexes in intel_modeset_gem_init()
serial: amba-pl011: use port lock to guard control register access
mm: Make {,set}page_address() static inline if WANT_PAGE_VIRTUAL
md/raid5: Fix possible confusion when multiple write errors occur.
md/raid10: fix two bugs in handling of known-bad-blocks.
md/raid10: fix bug when raid10 recovery fails to recover a block.
md: fix problem when adding device to read-only array with bitmap.
drm/i915: fix DDI PLLs HW state readout code
nilfs2: fix segctor bug that causes file system corruption
thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only
ftrace/x86: Load ftrace_ops in parameter not the variable holding it
SELinux: Fix possible NULL pointer dereference in selinux_inode_permission()
writeback: Fix data corruption on NFS
hwmon: (coretemp) Fix truncated name of alarm attributes
vfs: In d_path don't call d_dname on a mount point
staging: comedi: adl_pci9111: fix incorrect irq passed to request_irq()
staging: comedi: addi_apci_1032: fix subdevice type/flags bug
mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate successfully
GFS2: Increase i_writecount during gfs2_setattr_chown
perf/x86/amd/ibs: Fix waking up from S3 for AMD family 10h
perf scripting perl: Fix build error on Fedora 12
ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic
Linux 3.10.27
sched: Guarantee new group-entities always have weight
sched: Fix hrtimer_cancel()/rq->lock deadlock
sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining
sched: Fix race on toggling cfs_bandwidth_used
x86, fpu, amd: Clear exceptions in AMD FXSAVE workaround
netfilter: nf_nat: fix access to uninitialized buffer in IRC NAT helper
SCSI: sd: Reduce buffer size for vpd request
intel_pstate: Add X86_FEATURE_APERFMPERF to cpu match parameters.
mac80211: move "bufferable MMPDU" check to fix AP mode scan
ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
ACPI / TPM: fix memory leak when walking ACPI namespace
mfd: rtsx_pcr: Disable interrupts before cancelling delayed works
clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
clk: samsung: exynos4: Correct SRC_MFC register
clk: clk-divider: fix divisor > 255 bug
ahci: add PCI ID for Marvell 88SE9170 SATA controller
parisc: Ensure full cache coherency for kmap/kunmap
drm/nouveau/bios: make jump conditional
ARM: shmobile: mackerel: Fix coherent DMA mask
ARM: shmobile: armadillo: Fix coherent DMA mask
ARM: shmobile: kzm9g: Fix coherent DMA mask
ARM: dts: exynos5250: Fix MDMA0 clock number
ARM: fix "bad mode in ... handler" message for undefined instructions
ARM: fix footbridge clockevent device
net: Loosen constraints for recalculating checksum in skb_segment()
bridge: use spin_lock_bh() in br_multicast_set_hash_max
netpoll: Fix missing TXQ unlock and and OOPS.
net: llc: fix use after free in llc_ui_recvmsg
virtio-net: fix refill races during restore
virtio_net: don't leak memory or block when too many frags
virtio-net: make all RX paths handle errors consistently
virtio_net: fix error handling for mergeable buffers
vlan: Fix header ops passthru when doing TX VLAN offload.
net: rose: restore old recvmsg behavior
rds: prevent dereference of a NULL device
ipv6: always set the new created dst's from in ip6_rt_copy
net: fec: fix potential use after free
hamradio/yam: fix info leak in ioctl
drivers/net/hamradio: Integer overflow in hdlcdrv_ioctl()
net: inet_diag: zero out uninitialized idiag_{src,dst} fields
ip_gre: fix msg_name parsing for recvfrom/recvmsg
net: unix: allow bind to fail on mutex lock
ipv6: fix illegal mac_header comparison on 32bit
netvsc: don't flush peers notifying work during setting mtu
tg3: Initialize REG_BASE_ADDR at PCI config offset 120 to 0
net: unix: allow set_peek_off to fail
net: drop_monitor: fix the value of maxattr
ipv6: don't count addrconf generated routes against gc limit
packet: fix send path when running with proto == 0
virtio: delete napi structures from netdev before releasing memory
macvtap: signal truncated packets
tun: update file current position
macvtap: update file current position
macvtap: Do not double-count received packets
rds: prevent BUG_ON triggered on congestion update to loopback
net: do not pretend FRAGLIST support
IPv6: Fixed support for blackhole and prohibit routes
HID: Revert "Revert "HID: Fix logitech-dj: missing Unifying device issue""
gpio-rcar: R-Car GPIO IRQ share interrupt
clocksource: em_sti: Set cpu_possible_mask to fix SMP broadcast
irqchip: renesas-irqc: Fix irqc_probe error handling
Linux 3.10.26
sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to sh_ksyms_32.c
ext4: fix bigalloc regression
arm64: Use Normal NonCacheable memory for writecombine
arm64: Do not flush the D-cache for anonymous pages
arm64: Avoid cache flushing in flush_dcache_page()
ARM: KVM: arch_timers: zero CNTVOFF upon return to host
ARM: hyp: initialize CNTVOFF to zero
clocksource: arch_timer: use virtual counters
arm64: Remove unused cpu_name ascii in arch/arm64/mm/proc.S
arm64: dts: Reserve the memory used for secondary CPU release address
arm64: check for number of arguments in syscall_get/set_arguments()
arm64: fix possible invalid FPSIMD initialization state
...
Change-Id: Ia0e5d71b536ab49ec3a1179d59238c05bdd03106
Signed-off-by: Ian Maund <imaund@codeaurora.org>
[ Upstream commit f3d3342602f8bcbf37d7c46641cb9bca7618eb1c ]
This patch now always passes msg->msg_namelen as 0. recvmsg handlers must
set msg_namelen to the proper size <= sizeof(struct sockaddr_storage)
to return msg_name to the user.
This prevents numerous uninitialized memory leaks we had in the
recvmsg handlers and makes it harder for new code to accidentally leak
uninitialized memory.
Optimize for the case recvfrom is called with NULL as address. We don't
need to copy the address at all, so set it to NULL before invoking the
recvmsg handler. We can do so, because all the recvmsg handlers must
cope with the case a plain read() is called on them. read() also sets
msg_name to NULL.
Also document these changes in include/linux/net.h as suggested by David
Miller.
Changes since RFC:
Set msg->msg_name = NULL if user specified a NULL in msg_name but had a
non-null msg_namelen in verify_iovec/verify_compat_iovec. This doesn't
affect sendto as it would bail out earlier while trying to copy-in the
address. It also more naturally reflects the logic by the callers of
verify_iovec.
With this change in place I could remove "
if (!uaddr || msg_sys->msg_namelen == 0)
msg->msg_name = NULL
".
This change does not alter the user visible error logic as we ignore
msg_namelen as long as msg_name is NULL.
Also remove two unnecessary curly brackets in ___sys_recvmsg and change
comments to netdev style.
Cc: David Miller <davem@davemloft.net>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Given the numerous clients of sockets, it is difficult to find the
offending client for the error that is being reported. Change the
kernel print messages to generate a warning instead so that we get
a complete call stack.
Change-Id: I4bfce3e0a5aecd88c6fa4a1f900482449a4b868d
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
[ Upstream commit ff862a4668dd6dba962b1d2d8bd344afa6375683 ]
This is inspired by a5cc68f3d6 "af_key: fix info leaks in notify
messages". There are some struct members which don't get initialized
and could disclose small amounts of private information.
Acked-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
key_notify_sa_flush() and key_notify_policy_flush() miss to initialize
the sadb_msg_reserved member of the broadcasted message and thereby
leak 2 bytes of heap memory to listeners. Fix that.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
In some cases after deleting a policy from the SPD the policy would
remain in the dst/flow/route cache for an extended period of time
which caused problems for SELinux as its dynamic network access
controls key off of the number of XFRM policy and state entries.
This patch corrects this problem by forcing a XFRM garbage collection
whenever a policy is sucessfully removed.
Reported-by: Ondrej Moris <omoris@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
1) Initialize the satype field in key_notify_policy_flush(),
this was left uninitialized. From Nicolas Dichtel.
2) The sequence number difference for replay notifications
was misscalculated on ESN sequence number wrap. We need
a separate replay notify function for esn.
3) Fix an off by one in the esn replay notify function.
From Mathias Krause.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
I'm not sure why, but the hlist for each entry iterators were conceived
list_for_each_entry(pos, head, member)
The hlist ones were greedy and wanted an extra parameter:
hlist_for_each_entry(tpos, pos, head, member)
Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.
Besides the semantic patch, there was some manual work required:
- Fix up the actual hlist iterators in linux/list.h
- Fix up the declaration of other iterators based on the hlist ones.
- A very small amount of places were using the 'node' parameter, this
was modified to use 'obj->member' instead.
- Coccinelle didn't handle the hlist_for_each_entry_safe iterator
properly, so those had to be fixed up manually.
The semantic patch which is mostly the work of Peter Senna Tschudin is here:
@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;
type T;
expression a,c,d,e;
identifier b;
statement S;
@@
-T b;
<+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
...+>
[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This field was left uninitialized. Some user daemons perform check against this
field.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
proc_net_remove is only used to remove proc entries
that under /proc/net,it's not a general function for
removing proc entries of netns. if we want to remove
some proc entries which under /proc/net/stat/, we still
need to call remove_proc_entry.
this patch use remove_proc_entry to replace proc_net_remove.
we can remove proc_net_remove after this patch.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Right now, some modules such as bonding use proc_create
to create proc entries under /proc/net/, and other modules
such as ipv4 use proc_net_fops_create.
It looks a little chaos.this patch changes all of
proc_net_fops_create to proc_create. we can remove
proc_net_fops_create after this patch.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
1) Remove a duplicated call to skb_orphan() in pf_key, from Cong Wang.
2) Prepare xfrm and pf_key for algorithms without pf_key support,
from Jussi Kivilinna.
3) Fix an unbalanced lock in xfrm_output_one(), from Li RongQing.
4) Add an IPsec state resolution packet queue to handle
packets that are send before the states are resolved.
5) xfrm4_policy_fini() is unused since 2.6.11, time to remove it.
From Michal Kubecek.
6) The xfrm gc threshold was configurable just in the initial
namespace, make it configurable in all namespaces. From
Michal Kubecek.
7) We currently can not insert policies with mark and mask
such that some flows would be matched from both policies.
Allow this if the priorities of these policies are different,
the one with the higher priority is used in this case.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Mark existing algorithms as pfkey supported and make pfkey only use algorithms
that have pfkey_supported set.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
All users of xfrm_addr_cmp() use its result as boolean.
Introduce xfrm_addr_equal() (which is equal to !xfrm_addr_cmp())
and convert all users.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
skb_set_owner_r() will call skb_orphan(), I don't
see any reason to call it twice.
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Allow an unpriviled user who has created a user namespace, and then
created a network namespace to effectively use the new network
namespace, by reducing capable(CAP_NET_ADMIN) and
capable(CAP_NET_RAW) calls to be ns_capable(net->user_ns,
CAP_NET_ADMIN), or capable(net->user_ns, CAP_NET_RAW) calls.
Allow creation of af_key sockets.
Allow creation of llc sockets.
Allow creation of af_packet sockets.
Allow sending xfrm netlink control messages.
Allow binding to netlink multicast groups.
Allow sending to netlink multicast groups.
Allow adding and dropping netlink multicast groups.
Allow sending to all netlink multicast groups and port ids.
Allow reading the netfilter SO_IP_SET socket option.
Allow sending netfilter netlink messages.
Allow setting and getting ip_vs netfilter socket options.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Because sizeof() is size_t then if "len" is negative, it counts as a
large positive value.
The call tree looks like:
pfkey_sendmsg()
-> pfkey_process()
-> pfkey_spdadd()
-> parse_ipsecrequests()
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is a frequent mistake to confuse the netlink port identifier with a
process identifier. Try to reduce this confusion by renaming fields
that hold port identifiers portid instead of pid.
I have carefully avoided changing the structures exported to
userspace to avoid changing the userspace API.
I have successfully built an allyesconfig kernel with this change.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is an initial merge in of Eric Biederman's work to start adding
user namespace support to the networking.
Signed-off-by: David S. Miller <davem@davemloft.net>
Sematically speaking, xfrm_mgr.acquire is called when kernel intends to ask
user space IKE daemon to negotiate SAs with peers. IOW the direction will
*always* be XFRM_POLICY_OUT, so remove int dir for clarity.
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use of "unsigned int" is preferred to bare "unsigned" in net tree.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
At the point of this error-handling code, alloc_skb has succeded, so free
the resulting skb by jumping to the err label.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
C assignment can handle struct in6_addr copying.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Unnecessary casts of void * clutter the code.
These are the remainder casts after several specific
patches to remove netdev_priv and dev_priv.
Done via coccinelle script:
$ cat cast_void_pointer.cocci
@@
type T;
T *pt;
void *pv;
@@
- pt = (T *)pv;
+ pt = pv;
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
The %pK format specifier is designed to hide exposed kernel pointers,
specifically via /proc interfaces. Exposing these pointers provides an
easy target for kernel write vulnerabilities, since they reveal the
locations of writable structures containing easily triggerable function
pointers. The behavior of %pK depends on the kptr_restrict sysctl.
If kptr_restrict is set to 0, no deviation from the standard %p behavior
occurs. If kptr_restrict is set to 1, the default, if the current user
(intended to be a reader via seq_printf(), etc.) does not have CAP_SYSLOG
(currently in the LSM tree), kernel pointers using %pK are printed as 0's.
If kptr_restrict is set to 2, kernel pointers using %pK are printed as
0's regardless of privileges. Replacing with 0's was chosen over the
default "(null)", which cannot be parsed by userland %p, which expects
"(nil)".
The supporting code for kptr_restrict and %pK are currently in the -mm
tree. This patch converts users of %p in net/ to %pK. Cases of printing
pointers to the syslog are not covered, since this would eliminate useful
information for postmortem debugging and the reading of the syslog is
already optionally protected by the dmesg_restrict sysctl.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: James Morris <jmorris@namei.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Thomas Graf <tgraf@infradead.org>
Cc: Eugene Teo <eugeneteo@kernel.org>
Cc: Kees Cook <kees.cook@canonical.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Eric Paris <eparis@parisplace.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add const qualifiers to structs iphdr, ipv6hdr and in6_addr pointers
where possible, to make code intention more obvious.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If CONFIG_NET_KEY_MIGRATE is not defined the arguments of
pfkey_migrate stub do not match causing warning.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This actually pointed out a (seemingly known) bug where we mangle the
pfkey header in a potentially shared SKB, which is fixed here.
Signed-off-by: David S. Miller <davem@davemloft.net>
Change "return (EXPR);" to "return EXPR;"
return is not a function, parentheses are not required.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Put severity level on pfkey printk messages
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
The original code saved the error value but just returned 0 in the end.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pass mark to all SP lookups to prepare them for when we add code
to have them search.
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeremy Sowden
Nikolay Aleksandrov
Herbert Xu
Fabian Frederick
Himangi Saraogi
Sean Tranchetti
Eric Biggers
Steffen Klassert
Dan Carpenter
Ian Maund
Hannes Frederic Sowa
Syed Rameez Mustafa
Mathias Krause
Paul Moore
David S. Miller
Junwei Zhang
Sasha Levin
Nicolas Dichtel
Gao feng
Jussi Kivilinna
YOSHIFUJI Hideaki / 吉藤英明
Cong Wang
Eric W. Biederman
Fan Du
Eric Dumazet
Julia Lawall
Alexey Dobriyan
Joe Perches
Dan Rosenberg
Stephen Hemminger
Tejun Heo
Dan Carpenter
Jamal Hadi Salim