From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Johannes Berg <johannes.berg@intel.com>,
Luca Coelho <luciano.coelho@intel.com>,
Sasha Levin <sashal@kernel.org>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 07/50] mac80211: consider more elements in parsing CRC
Date: Sat, 22 Feb 2020 21:21:52 -0500 [thread overview]
Message-ID: <20200223022235.1404-7-sashal@kernel.org> (raw)
In-Reply-To: <20200223022235.1404-1-sashal@kernel.org>
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit a04564c99bb4a92f805a58e56b2d22cc4978f152 ]
We only use the parsing CRC for checking if a beacon changed,
and elements with an ID > 63 cannot be represented in the
filter. Thus, like we did before with WMM and Cisco vendor
elements, just statically add these forgotten items to the
CRC:
- WLAN_EID_VHT_OPERATION
- WLAN_EID_OPMODE_NOTIF
I guess that in most cases when VHT/HE operation change, the HT
operation also changed, and so the change was picked up, but we
did notice that pure operating mode notification changes were
ignored.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20200131111300.891737-22-luca@coelho.fi
[restrict to VHT for the mac80211 branch]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/mac80211/util.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 32a7a53833c01..739e90555d8b9 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1063,16 +1063,22 @@ _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
elem_parse_failed = true;
break;
case WLAN_EID_VHT_OPERATION:
- if (elen >= sizeof(struct ieee80211_vht_operation))
+ if (elen >= sizeof(struct ieee80211_vht_operation)) {
elems->vht_operation = (void *)pos;
- else
- elem_parse_failed = true;
+ if (calc_crc)
+ crc = crc32_be(crc, pos - 2, elen + 2);
+ break;
+ }
+ elem_parse_failed = true;
break;
case WLAN_EID_OPMODE_NOTIF:
- if (elen > 0)
+ if (elen > 0) {
elems->opmode_notif = pos;
- else
- elem_parse_failed = true;
+ if (calc_crc)
+ crc = crc32_be(crc, pos - 2, elen + 2);
+ break;
+ }
+ elem_parse_failed = true;
break;
case WLAN_EID_MESH_ID:
elems->mesh_id = pos;
--
2.20.1
next prev parent reply other threads:[~2020-02-23 2:33 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-23 2:21 [PATCH AUTOSEL 5.4 01/50] ipmi:ssif: Handle a possible NULL pointer reference Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 02/50] drm/msm: Set dma maximum segment size for mdss Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 03/50] sched/core: Don't skip remote tick for idle CPUs Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 04/50] timers/nohz: Update NOHZ load in remote tick Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 05/50] sched/fair: Prevent unlimited runtime on throttled group Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 06/50] dax: pass NOWAIT flag to iomap_apply Sasha Levin
2020-02-23 2:21 ` Sasha Levin [this message]
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 08/50] cfg80211: check wiphy driver existence for drvinfo report Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 09/50] s390/zcrypt: fix card and queue total counter wrap Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 10/50] qmi_wwan: re-add DW5821e pre-production variant Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 11/50] qmi_wwan: unconditionally reject 2 ep interfaces Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 12/50] NFSv4: Fix races between open and dentry revalidation Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 13/50] perf/smmuv3: Use platform_get_irq_optional() for wired interrupt Sasha Levin
2020-02-23 2:21 ` [PATCH AUTOSEL 5.4 14/50] arm/ftrace: Fix BE text poking Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 15/50] sched/psi: Fix OOB write when writing 0 bytes to PSI files Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 16/50] perf/x86/intel: Add Elkhart Lake support Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 17/50] perf/x86/cstate: Add Tremont support Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 18/50] perf/x86/msr: " Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 19/50] ceph: do not execute direct write in parallel if O_APPEND is specified Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 20/50] ARM: dts: sti: fixup sound frame-inversion for stihxxx-b2120.dtsi Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 21/50] drm/amd/display: Do not set optimized_require to false after plane disable Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 22/50] RDMA/siw: Remove unwanted WARN_ON in siw_cm_llp_data_ready() Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 23/50] drm/amd/display: Check engine is not NULL before acquiring Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 24/50] drm/amd/display: Limit minimum DPPCLK to 100MHz Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 25/50] drm/amd/display: Add initialitions for PLL2 clock source Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 26/50] amdgpu: Prevent build errors regarding soft/hard-float FP ABI tags Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 27/50] soc/tegra: fuse: Fix build with Tegra194 configuration Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 28/50] i40e: Fix the conditional for i40e_vc_validate_vqs_bitmaps Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 29/50] net: ena: fix potential crash when rxfh key is NULL Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 30/50] net: ena: fix uses of round_jiffies() Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 31/50] net: ena: add missing ethtool TX timestamping indication Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 32/50] net: ena: fix incorrect default RSS key Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 33/50] net: ena: rss: do not allocate key when not supported Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 34/50] net: ena: rss: fix failure to get indirection table Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 35/50] net: ena: rss: store hash function as values and not bits Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 36/50] net: ena: fix incorrectly saving queue numbers when setting RSS indirection table Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 37/50] net: ena: fix corruption of dev_idx_to_host_tbl Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 38/50] net: ena: ethtool: use correct value for crc32 hash Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 39/50] net: ena: ena-com.c: prevent NULL pointer dereference Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 40/50] enic: prevent waking up stopped tx queues over watchdog reset Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 41/50] ice: update Unit Load Status bitmask to check after reset Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 42/50] cifs: Fix mode output in debugging statements Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 43/50] bcache: ignore pending signals when creating gc and allocator thread Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 44/50] cfg80211: add missing policy for NL80211_ATTR_STATUS_CODE Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 45/50] mac80211: fix wrong 160/80+80 MHz setting Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 46/50] net: hns3: add management table after IMP reset Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 47/50] net: hns3: fix a copying IPv6 address error in hclge_fd_get_flow_tuples() Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 48/50] nvme/tcp: fix bug on double requeue when send fails Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 49/50] nvme: prevent warning triggered by nvme_stop_keep_alive Sasha Levin
2020-02-23 2:22 ` [PATCH AUTOSEL 5.4 50/50] nvme/pci: move cqe check after device shutdown Sasha Levin
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