From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, "Jason A. Donenfeld" <Jason@zx2c4.com>,
Moshe Kol <moshe.kol@mail.huji.ac.il>,
Yossi Gilad <yossi.gilad@mail.huji.ac.il>,
Amit Klein <aksecurity@gmail.com>,
Eric Dumazet <edumazet@google.com>, Willy Tarreau <w@1wt.eu>,
Jakub Kicinski <kuba@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.15 055/102] secure_seq: use the 64 bits of the siphash for port offset calculation
Date: Mon, 16 May 2022 21:36:29 +0200 [thread overview]
Message-ID: <20220516193625.575852466@linuxfoundation.org> (raw)
In-Reply-To: <20220516193623.989270214@linuxfoundation.org>
From: Willy Tarreau <w@1wt.eu>
[ Upstream commit b2d057560b8107c633b39aabe517ff9d93f285e3 ]
SipHash replaced MD5 in secure_ipv{4,6}_port_ephemeral() via commit
7cd23e5300c1 ("secure_seq: use SipHash in place of MD5"), but the output
remained truncated to 32-bit only. In order to exploit more bits from the
hash, let's make the functions return the full 64-bit of siphash_3u32().
We also make sure the port offset calculation in __inet_hash_connect()
remains done on 32-bit to avoid the need for div_u64_rem() and an extra
cost on 32-bit systems.
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Cc: Moshe Kol <moshe.kol@mail.huji.ac.il>
Cc: Yossi Gilad <yossi.gilad@mail.huji.ac.il>
Cc: Amit Klein <aksecurity@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/inet_hashtables.h | 2 +-
include/net/secure_seq.h | 4 ++--
net/core/secure_seq.c | 4 ++--
net/ipv4/inet_hashtables.c | 10 ++++++----
net/ipv6/inet6_hashtables.c | 4 ++--
5 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index f72ec113ae56..98e1ec1a14f0 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -425,7 +425,7 @@ static inline void sk_rcv_saddr_set(struct sock *sk, __be32 addr)
}
int __inet_hash_connect(struct inet_timewait_death_row *death_row,
- struct sock *sk, u32 port_offset,
+ struct sock *sk, u64 port_offset,
int (*check_established)(struct inet_timewait_death_row *,
struct sock *, __u16,
struct inet_timewait_sock **));
diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
index d7d2495f83c2..dac91aa38c5a 100644
--- a/include/net/secure_seq.h
+++ b/include/net/secure_seq.h
@@ -4,8 +4,8 @@
#include <linux/types.h>
-u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
-u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
+u64 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
+u64 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
__be16 dport);
u32 secure_tcp_seq(__be32 saddr, __be32 daddr,
__be16 sport, __be16 dport);
diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index b5bc680d4755..444cce0184c3 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -94,7 +94,7 @@ u32 secure_tcpv6_seq(const __be32 *saddr, const __be32 *daddr,
}
EXPORT_SYMBOL(secure_tcpv6_seq);
-u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
+u64 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
__be16 dport)
{
const struct {
@@ -142,7 +142,7 @@ u32 secure_tcp_seq(__be32 saddr, __be32 daddr,
}
EXPORT_SYMBOL_GPL(secure_tcp_seq);
-u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport)
+u64 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport)
{
net_secret_init();
return siphash_3u32((__force u32)saddr, (__force u32)daddr,
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 7bd1e10086f0..606a4220ebb9 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -504,7 +504,7 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
return -EADDRNOTAVAIL;
}
-static u32 inet_sk_port_offset(const struct sock *sk)
+static u64 inet_sk_port_offset(const struct sock *sk)
{
const struct inet_sock *inet = inet_sk(sk);
@@ -734,7 +734,7 @@ EXPORT_SYMBOL_GPL(inet_unhash);
static u32 table_perturb[1 << INET_TABLE_PERTURB_SHIFT];
int __inet_hash_connect(struct inet_timewait_death_row *death_row,
- struct sock *sk, u32 port_offset,
+ struct sock *sk, u64 port_offset,
int (*check_established)(struct inet_timewait_death_row *,
struct sock *, __u16, struct inet_timewait_sock **))
{
@@ -777,7 +777,9 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
net_get_random_once(table_perturb, sizeof(table_perturb));
index = hash_32(port_offset, INET_TABLE_PERTURB_SHIFT);
- offset = (READ_ONCE(table_perturb[index]) + port_offset) % remaining;
+ offset = READ_ONCE(table_perturb[index]) + port_offset;
+ offset %= remaining;
+
/* In first pass we try ports of @low parity.
* inet_csk_get_port() does the opposite choice.
*/
@@ -859,7 +861,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
int inet_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk)
{
- u32 port_offset = 0;
+ u64 port_offset = 0;
if (!inet_sk(sk)->inet_num)
port_offset = inet_sk_port_offset(sk);
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 0a2e7f228391..40203255ed88 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -308,7 +308,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
return -EADDRNOTAVAIL;
}
-static u32 inet6_sk_port_offset(const struct sock *sk)
+static u64 inet6_sk_port_offset(const struct sock *sk)
{
const struct inet_sock *inet = inet_sk(sk);
@@ -320,7 +320,7 @@ static u32 inet6_sk_port_offset(const struct sock *sk)
int inet6_hash_connect(struct inet_timewait_death_row *death_row,
struct sock *sk)
{
- u32 port_offset = 0;
+ u64 port_offset = 0;
if (!inet_sk(sk)->inet_num)
port_offset = inet6_sk_port_offset(sk);
--
2.35.1
next prev parent reply other threads:[~2022-05-16 20:07 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-16 19:35 [PATCH 5.15 000/102] 5.15.41-rc1 review Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 001/102] batman-adv: Dont skb_split skbuffs with frag_list Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 002/102] iwlwifi: iwl-dbg: Use del_timer_sync() before freeing Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 003/102] hwmon: (tmp401) Add OF device ID table Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 004/102] mac80211: Reset MBSSID parameters upon connection Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 005/102] net: Fix features skip in for_each_netdev_feature() Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 006/102] net: mscc: ocelot: fix last VCAP IS1/IS2 filter persisting in hardware when deleted Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 007/102] net: mscc: ocelot: fix VCAP IS2 filters matching on both lookups Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 008/102] net: mscc: ocelot: restrict tc-trap actions to VCAP IS2 lookup 0 Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 009/102] net: mscc: ocelot: avoid corrupting hardware counters when moving VCAP filters Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 010/102] fbdev: simplefb: Cleanup fb_info in .fb_destroy rather than .remove Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 011/102] fbdev: efifb: " Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 012/102] fbdev: vesafb: " Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 013/102] platform/surface: aggregator: Fix initialization order when compiling as builtin module Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 014/102] ice: Fix race during aux device (un)plugging Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 015/102] ice: fix PTP stale Tx timestamps cleanup Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 016/102] ipv4: drop dst in multicast routing path Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 017/102] drm/nouveau: Fix a potential theorical leak in nouveau_get_backlight_name() Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 018/102] netlink: do not reset transport header in netlink_recvmsg() Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 019/102] net: chelsio: cxgb4: Avoid potential negative array offset Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 020/102] fbdev: efifb: Fix a use-after-free due early fb_info cleanup Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 021/102] sfc: Use swap() instead of open coding it Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 022/102] net: sfc: fix memory leak due to ptp channel Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 023/102] mac80211_hwsim: call ieee80211_tx_prepare_skb under RCU protection Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 024/102] nfs: fix broken handling of the softreval mount option Greg Kroah-Hartman
2022-05-16 19:35 ` [PATCH 5.15 025/102] ionic: fix missing pci_release_regions() on error in ionic_probe() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 026/102] dim: initialize all struct fields Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 027/102] hwmon: (ltq-cputemp) restrict it to SOC_XWAY Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 028/102] procfs: prevent unprivileged processes accessing fdinfo dir Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 029/102] selftests: vm: Makefile: rename TARGETS to VMTARGETS Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 030/102] arm64: vdso: fix makefile dependency on vdso.so Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 031/102] virtio: fix virtio transitional ids Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 032/102] s390/ctcm: fix variable dereferenced before check Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 033/102] s390/ctcm: fix potential memory leak Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 034/102] s390/lcs: fix variable dereferenced before check Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 035/102] net/sched: act_pedit: really ensure the skb is writable Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 036/102] net: ethernet: mediatek: ppe: fix wrong size passed to memset() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 037/102] net: bcmgenet: Check for Wake-on-LAN interrupt probe deferral Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 038/102] drm/vc4: hdmi: Fix build error for implicit function declaration Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 039/102] net: dsa: bcm_sf2: Fix Wake-on-LAN with mac_link_down() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 040/102] net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 041/102] net: sfc: ef10: fix memory leak in efx_ef10_mtd_probe() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 042/102] tls: Fix context leak on tls_device_down Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 043/102] drm/vmwgfx: Fix fencing on SVGAv3 Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 044/102] gfs2: Fix filesystem block deallocation for short writes Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 045/102] hwmon: (f71882fg) Fix negative temperature Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 046/102] RDMA/irdma: Fix deadlock in irdma_cleanup_cm_core() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 047/102] iommu: arm-smmu: disable large page mappings for Nvidia arm-smmu Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 048/102] ASoC: max98090: Reject invalid values in custom control put() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 049/102] ASoC: max98090: Generate notifications on changes for custom control Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 050/102] ASoC: ops: Validate input values in snd_soc_put_volsw_range() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 051/102] s390: disable -Warray-bounds Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 052/102] ASoC: SOF: Fix NULL pointer exception in sof_pci_probe callback Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 053/102] net: emaclite: Dont advertise 1000BASE-T and do auto negotiation Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 054/102] net: sfp: Add tx-fault workaround for Huawei MA5671A SFP ONT Greg Kroah-Hartman
2022-05-16 19:36 ` Greg Kroah-Hartman [this message]
2022-05-16 19:36 ` [PATCH 5.15 056/102] tcp: use different parts of the port_offset for index and offset Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 057/102] tcp: resalt the secret every 10 seconds Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 058/102] tcp: add small random increments to the source port Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 059/102] tcp: dynamically allocate the perturb table used by source ports Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 060/102] tcp: increase source port perturb table to 2^16 Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 061/102] tcp: drop the hash_32() part from the index calculation Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 062/102] interconnect: Restore sync state by ignoring ipa-virt in provider count Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 063/102] firmware_loader: use kernel credentials when reading firmware Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 064/102] KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 065/102] usb: xhci-mtk: fix fs isocs transfer error Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 066/102] x86/mm: Fix marking of unused sub-pmd ranges Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 067/102] tty/serial: digicolor: fix possible null-ptr-deref in digicolor_uart_probe() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 068/102] tty: n_gsm: fix buffer over-read in gsm_dlci_data() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 069/102] tty: n_gsm: fix mux activation issues in gsm_config() Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 070/102] usb: cdc-wdm: fix reading stuck on device close Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 071/102] usb: typec: tcpci: Dont skip cleanup in .remove() on error Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 072/102] usb: typec: tcpci_mt6360: Update for BMC PHY setting Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 073/102] USB: serial: pl2303: add device id for HP LM930 Display Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 074/102] USB: serial: qcserial: add support for Sierra Wireless EM7590 Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 075/102] USB: serial: option: add Fibocom L610 modem Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 076/102] USB: serial: option: add Fibocom MA510 modem Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 077/102] slimbus: qcom: Fix IRQ check in qcom_slim_probe Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 078/102] fsl_lpuart: Dont enable interrupts too early Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 079/102] serial: 8250_mtk: Fix UART_EFR register address Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 080/102] serial: 8250_mtk: Fix register address for XON/XOFF character Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 081/102] ceph: fix setting of xattrs on async created inodes Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 082/102] Revert "mm/memory-failure.c: skip huge_zero_page in memory_failure()" Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 083/102] mm/huge_memory: do not overkill when splitting huge_zero_page Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 084/102] drm/vmwgfx: Disable command buffers on svga3 without gbobjects Greg Kroah-Hartman
2022-05-16 19:36 ` [PATCH 5.15 085/102] drm/nouveau/tegra: Stop using iommu_present() Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 086/102] i40e: i40e_main: fix a missing check on list iterator Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 087/102] net: atlantic: always deep reset on pm op, fixing up my null deref regression Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 088/102] net: phy: Fix race condition on link status change Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 089/102] writeback: Avoid skipping inode writeback Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 090/102] cgroup/cpuset: Remove cpus_allowed/mems_allowed setup in cpuset_init_smp() Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 091/102] arm[64]/memremap: dont abuse pfn_valid() to ensure presence of linear map Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 092/102] net: phy: micrel: Do not use kszphy_suspend/resume for KSZ8061 Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 093/102] net: phy: micrel: Pass .probe for KS8737 Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 094/102] SUNRPC: Ensure that the gssproxy client can start in a connected state Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 095/102] drm/vmwgfx: Initialize drm_mode_fb_cmd2 Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 096/102] Revert "drm/amd/pm: keep the BACO feature enabled for suspend" Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 097/102] dma-buf: call dma_buf_stats_setup after dmabuf is in valid list Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 098/102] mm/hwpoison: use pr_err() instead of dump_page() in get_any_page() Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 099/102] SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 100/102] ping: fix address binding wrt vrf Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 101/102] usb: gadget: uvc: rename function to be more consistent Greg Kroah-Hartman
2022-05-16 19:37 ` [PATCH 5.15 102/102] usb: gadget: uvc: allow for application to cleanly shutdown Greg Kroah-Hartman
2022-05-17 4:12 ` [PATCH 5.15 000/102] 5.15.41-rc1 review Shuah Khan
2022-05-17 7:41 ` Jon Hunter
2022-05-17 8:08 ` Fox Chen
2022-05-17 11:03 ` Sudip Mukherjee
2022-05-17 11:15 ` Naresh Kamboju
2022-05-17 15:59 ` Ron Economos
2022-05-17 16:22 ` Florian Fainelli
2022-05-17 19:31 ` Guenter Roeck
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