- 04 Feb, 2022 1 commit
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Johannes Berg authored
My previous fix here to fix the deadlock left a race where the exact same deadlock (see the original commit referenced below) can still happen if cfg80211_destroy_ifaces() already runs while nl80211_netlink_notify() is still marking some interfaces as nl_owner_dead. The race happens because we have two loops here - first we dev_close() all the netdevs, and then we destroy them. If we also have two netdevs (first one need only be a wdev though) then we can find one during the first iteration, close it, and go to the second iteration -- but then find two, and try to destroy also the one we didn't close yet. Fix this by only iterating once. Reported-by:
Toke Høiland-Jørgensen <toke@redhat.com> Fixes: ea6b2098 ("cfg80211: fix locking in netlink owner interface destruction") Tested-by:
Johannes Berg <johannes.berg@intel.com>
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- 03 Feb, 2022 10 commits
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Luca Coelho authored
SAR GEO offsets are not supported on 3160 devices. The code was refactored and caused us to start sending the command anyway, which causes a FW assertion failure. Fix that only considering this feature supported on FW API with major version is 17 if the device is not 3160. Additionally, fix the caller of iwl_mvm_sar_geo_init() so that it checks for the return value, which it was ignoring. Reported-by:
Len Brown <lenb@kernel.org> Signed-off-by:
Luca Coelho <luciano.coelho@intel.com> Fixes: 78a19d52 ("iwlwifi: mvm: Read the PPAG and SAR tables at INIT stage") Signed-off-by:
Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/iwlwifi.20220128144623.96f683a89b42.I14e2985bfd7ddd8a8d83eb1869b800c0e7f30db4@changeid
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Luca Coelho authored
This feature has been deprecated and should not be used anymore. With newer firmwares, namely *-67.ucode and above, trying to use it causes an assertion failure in the FW, similar to this: [Tue Jan 11 20:05:24 2022] iwlwifi 0000:04:00.0: 0x00001062 | ADVANCED_SYSASSERT In order to prevent this feature from being used, remove it entirely and get rid of the Kconfig option that enables it (IWLWIFI_BCAST_FILTERING). Fixes: cbaa6aee ("iwlwifi: bump FW API to 67 for AX devices") Link: https://bugzilla.kernel.org/show_bug.cgi?id=215488 Cc: stable@vger.kernel.org # 5.16.x Signed-off-by:
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Emmanuel Grumbach authored
When we register and we are in link protection passive, meaning that the host can't touch the device, report RFKILL immediately upon register() and don't wait for the CSME firmware to let us know again about the link protection state. What happens if we wait is that the host will not see RFKILL soon enough and we'll have a window of time during which it can bring up the device which will request ownership. Fixes: 2da4366f ("iwlwifi: mei: add the driver to allow cooperation with CSME") Signed-off-by:
Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by:
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Emmanuel Grumbach authored
iwlmei can trigger a hardware RFKILL when the CSME firmware does not want the host to touch the device. But then, iwlmvm reports RFKILL which makes cfg80211 update iwlmvm about RFKILL. iwlmvm then thinks there is a change in the _software_ rfkill and it calls rfkill_blocked() to fetch the RFKILL state. This returns that RFKILL is blocked (because of iwlmei) and iwlmvm tells iwlmei that _software_ RFKILL is asserted. This is a bug of course. Fix this by checking explicitly the software RFKILL state and not the overall RFKILL state. Fixes: 7ce1f215 ("iwlwifi: mvm: read the rfkill state and feed it to iwlmei") Signed-off-by:
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Emmanuel Grumbach authored
The shared area is a DMA memory allocated in the host and mapped so that the host and the CSME firmware can exchange data. It is mapped through a dedicated PCI device that is driven by the mei bus driver. The bus driver is in charge of allocating and mapping this memory. It also needs to configure the CSME firmware with a specific set of commands, so that the CSME firmware will know that this memory is meant to be used by its internal WLAN module. For this, the CSME firmware first needs to completely initialize its WLAN module and only then get the mapping request. The problem is that the mei bus enumeration completes before the WLAN is completely ready. This means that the WLAN module's initialization is racing with iwlmei's allocation and mapping flow. Testing showed a problem in resume flows where iwlmei was too fast and the DMA mapping failed. Add a retry mechanism to make sure that we will succeed to map the memory. Fixes: 2da4366f ("iwlwifi: mei: add the driver to allow cooperation with CSME") Fixes: bcbddc4f ("iwlwifi: mei: wait before mapping the shared area") Signed-off-by:
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Emmanuel Grumbach authored
The check makes sure that we can look at the ip header. We first need to check that the basic ip header (20 bytes) can be pulled before we look at the field that will teach us how long is the ip header. This is why there are two checks. The second check was wrong and smatch pointed that sizeof(ip_hdrlen(skb) - sizeof(*iphdr)) can't be right. Looking at the code again made me think that we really need ip_hdrlen(skb) since we want to make sure all the IP header is in the buffer header. This will allow us to set the transport offset and from there to look at the transport header (TCP / UDP). Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Johannes Berg authored
If we run into this error path, we shouldn't unlock the mutex since it's not locked since. Fix this in the gen2 code as well. Fixes: eda50cde ("iwlwifi: pcie: add context information support") Signed-off-by:
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Johannes Berg authored
If we run into this error path, we shouldn't unlock the mutex since it's not locked since. Fix this. Fixes: a6bd005f ("iwlwifi: pcie: fix RF-Kill vs. firmware load race") Signed-off-by:
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Miri Korenblit authored
There are a couple of bugs in this function: 1. It is declared as a non-static function, even though it's only used in one file. 2. Its return value should be of type u32 but it returns (in some cases) -1. Fix them by making this function static and returning an error value of type unsigned. In addition, we're assigning the return value of this function as the legacy rate even if the function returned an error value. Fix this by assigning the lowest rate in this case. Signed-off-by:
Miri Korenblit <miriam.rachel.korenblit@intel.com> Reported-by:
Ye Guojin <ye.guojin@zte.com.cn> Reported-by:
Zeal Robot <zealci@zte.com.cn> Fixes: 9998f81e ("iwlwifi: mvm: convert old rate & flags to the new format.") Signed-off-by:
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Miri Korenblit authored
We're checking the FW version of TX_CMD in order to decide whether to convert rate_n_flags from the old format to the new one. If the API is smaller or equal to 6 we should convert it. Currently we're converting if the API version is greater than 6. Fix it. Signed-off-by:
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- 31 Jan, 2022 7 commits
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Kalle Valo authored
The DT bindings files were missing for ath10k and ath11k so add them now. Signed-off-by:
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Kalle Valo authored
In practise I have been the only maintainer for ath9k for some time now but I don't really have time for it. Luckily Toke is willing to look after so mark him as maintainer. Thanks Toke! Signed-off-by:
Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by:
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Kalle Valo authored
I don't have time for being wcn36xx maintainer but Loic is willing to step up. Thanks Loic! Also remove Eugene's old tree, it has not been used for a long time. Signed-off-by:
Loic Poulain <loic.poulain@linaro.org> Signed-off-by:
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Kalle Valo authored
I don't have time to maintain ath6kl anymore so mark it as orphan. Signed-off-by:
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JaeMan Park authored
In mac80211_hwsim, the probe_req frame is created and sent while scanning. It is sent with ieee80211_tx_info which is not initialized. Uninitialized ieee80211_tx_info can cause problems when using mac80211_hwsim with wmediumd. wmediumd checks the tx_rates field of ieee80211_tx_info and doesn't relay probe_req frame to other clients even if it is a broadcasting message. Call ieee80211_tx_prepare_skb() to initialize ieee80211_tx_info for the probe_req that is created by hw_scan_work in mac80211_hwsim. Signed-off-by:
JaeMan Park <jaeman@google.com> Link: https://lore.kernel.org/r/20220113060235.546107-1-jaeman@google.com [fix memory leak] Signed-off-by:
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Benjamin Beichler authored
Add IEEE80211_TX_STAT_NOACK_TRANSMITTED to tx_status flags to have proper statistics for non-acked frames. Signed-off-by:
Benjamin Beichler <benjamin.beichler@uni-rostock.de> Link: https://lore.kernel.org/r/20220111221327.1499881-1-benjamin.beichler@uni-rostock.deSigned-off-by:
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Jiasheng Jiang authored
As the possible failure of the alloc, the ifmgd->assoc_req_ies might be NULL pointer returned from kmemdup(). Therefore it might be better to free the skb and return error in order to fail the association, like ieee80211_assoc_success(). Also, the caller, ieee80211_do_assoc(), needs to deal with the return value from ieee80211_send_assoc(). Fixes: 4d9ec73d ("cfg80211: Report Association Request frame IEs in association events") Signed-off-by:
Jiasheng Jiang <jiasheng@iscas.ac.cn> Link: https://lore.kernel.org/r/20220105081559.2387083-1-jiasheng@iscas.ac.cn [fix some paths to be errors, not success] Signed-off-by:
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- 28 Jan, 2022 4 commits
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Phil Elwell authored
The call to brcm_alt_fw_path in brcmf_fw_get_firmwares is not protected by a check to the validity of the fwctx->req->board_type pointer. This results in a crash in strlcat when, for example, the WLAN chip is found in a USB dongle. Prevent the crash by adding the necessary check. See: https://github.com/raspberrypi/linux/issues/4833 Fixes: 5ff01391 ("brcmfmac: firmware: Allow per-board firmware binaries") Signed-off-by:
Phil Elwell <phil@raspberrypi.com> Signed-off-by:
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Raju Rangoju authored
Ensure to reset the tx_timer_active flag in xgbe_stop(), otherwise a port restart may result in tx timeout due to uncleared flag. Fixes: c635eaac ("amd-xgbe: Remove Tx coalescing") Co-developed-by:
Sudheesh Mavila <sudheesh.mavila@amd.com> Signed-off-by:
Raju Rangoju <Raju.Rangoju@amd.com> Acked-by:
Tom Lendacky <thomas.lendacky@amd.com> Link: https://lore.kernel.org/r/20220127060222.453371-1-Raju.Rangoju@amd.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfJakub Kicinski authored
Pablo Neira Ayuso says: ==================== Netfilter fixes for net 1) Remove leftovers from flowtable modules, from Geert Uytterhoeven. 2) Missing refcount increment of conntrack template in nft_ct, from Florian Westphal. 3) Reduce nft_zone selftest time, also from Florian. 4) Add selftest to cover stateless NAT on fragments, from Florian Westphal. 5) Do not set net_device when for reject packets from the bridge path, from Phil Sutter. 6) Cancel register tracking info on nft_byteorder operations. 7) Extend nft_concat_range selftest to cover set reload with no elements, from Florian Westphal. 8) Remove useless update of pointer in chain blob builder, reported by kbuild test robot. * git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf: netfilter: nf_tables: remove assignment with no effect in chain blob builder selftests: nft_concat_range: add test for reload with no element add/del netfilter: nft_byteorder: track register operations netfilter: nft_reject_bridge: Fix for missing reply from prerouting selftests: netfilter: check stateless nat udp checksum fixup selftests: netfilter: reduce zone stress test running time netfilter: nft_ct: fix use after free when attaching zone template netfilter: Remove flowtable relics ==================== Link: https://lore.kernel.org/r/20220127235235.656931-1-pablo@netfilter.orgSigned-off-by:
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Shyam Sundar S K authored
There will be BUG_ON() triggered in include/linux/skbuff.h leading to intermittent kernel panic, when the skb length underflow is detected. Fix this by dropping the packet if such length underflows are seen because of inconsistencies in the hardware descriptors. Fixes: 622c36f1 ("amd-xgbe: Fix jumbo MTU processing on newer hardware") Suggested-by:
Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Acked-by:
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- 27 Jan, 2022 18 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter and can. Current release - new code bugs: - tcp: add a missing sk_defer_free_flush() in tcp_splice_read() - tcp: add a stub for sk_defer_free_flush(), fix CONFIG_INET=n - nf_tables: set last expression in register tracking area - nft_connlimit: fix memleak if nf_ct_netns_get() fails - mptcp: fix removing ids bitmap setting - bonding: use rcu_dereference_rtnl when getting active slave - fix three cases of sleep in atomic context in drivers: lan966x, gve - handful of build fixes for esoteric drivers after netdev->dev_addr was made const Previous releases - regressions: - revert "ipv6: Honor all IPv6 PIO Valid Lifetime values", it broke Linux compatibility with USGv6 tests - procfs: show net device bound packet types - ipv4: fix ip option filtering for locally generated fragments - phy: broadcom: hook up soft_reset for BCM54616S Previous releases - always broken: - ipv4: raw: lock the socket in raw_bind() - ipv4: decrease the use of shared IPID generator to decrease the chance of attackers guessing the values - procfs: fix cross-netns information leakage in /proc/net/ptype - ethtool: fix link extended state for big endian - bridge: vlan: fix single net device option dumping - ping: fix the sk_bound_dev_if match in ping_lookup" * tag 'net-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (86 commits) net: bridge: vlan: fix memory leak in __allowed_ingress net: socket: rename SKB_DROP_REASON_SOCKET_FILTER ipv4: remove sparse error in ip_neigh_gw4() ipv4: avoid using shared IP generator for connected sockets ipv4: tcp: send zero IPID in SYNACK messages ipv4: raw: lock the socket in raw_bind() MAINTAINERS: add missing IPv4/IPv6 header paths MAINTAINERS: add more files to eth PHY net: stmmac: dwmac-sun8i: use return val of readl_poll_timeout() net: bridge: vlan: fix single net device option dumping net: stmmac: skip only stmmac_ptp_register when resume from suspend net: stmmac: configure PTP clock source prior to PTP initialization Revert "ipv6: Honor all IPv6 PIO Valid Lifetime values" connector/cn_proc: Use task_is_in_init_pid_ns() pid: Introduce helper task_is_in_init_pid_ns() gve: Fix GFP flags when allocing pages net: lan966x: Fix sleep in atomic context when updating MAC table net: lan966x: Fix sleep in atomic context when injecting frames ethernet: seeq/ether3: don't write directly to netdev->dev_addr ethernet: 8390/etherh: don't write directly to netdev->dev_addr ... -
Tim Yi authored
When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false. Fixes: a580c76d ("net: bridge: vlan: add per-vlan state") Signed-off-by:
Tim Yi <tim.yi@pica8.com> Acked-by:
Nikolay Aleksandrov <nikolay@nvidia.com> Link: https://lore.kernel.org/r/20220127074953.12632-1-tim.yi@pica8.comSigned-off-by:
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Pablo Neira Ayuso authored
cppcheck possible warnings: >> net/netfilter/nf_tables_api.c:2014:2: warning: Assignment of function parameter has no effect outside the function. Did you forget dereferencing it? [uselessAssignmentPtrArg] ptr += offsetof(struct nft_rule_dp, data); ^ Reported-by:kernel test robot <yujie.liu@intel.com> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Menglong Dong authored
Rename SKB_DROP_REASON_SOCKET_FILTER, which is used as the reason of skb drop out of socket filter before it's part of a released kernel. It will be used for more protocols than just TCP in future series. Signed-off-by:
Menglong Dong <imagedong@tencent.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/all/20220127091308.91401-2-imagedong@tencent.com/Signed-off-by:
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Eric Dumazet authored
./include/net/route.h:373:48: warning: incorrect type in argument 2 (different base types) ./include/net/route.h:373:48: expected unsigned int [usertype] key ./include/net/route.h:373:48: got restricted __be32 [usertype] daddr Fixes: 5c9f7c1d ("ipv4: Add helpers for neigh lookup for nexthop") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
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Jakub Kicinski authored
Eric Dumazet says: ==================== ipv4: less uses of shared IP generator From: Eric Dumazet <edumazet@google.com> We keep receiving research reports based on linux IPID generation. Before breaking part of the Internet by switching to pure random generator, this series reduces the need for the shared IP generator for TCP sockets. ==================== Link: https://lore.kernel.org/r/20220127011022.1274803-1-eric.dumazet@gmail.comSigned-off-by:
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Eric Dumazet authored
ip_select_ident_segs() has been very conservative about using the connected socket private generator only for packets with IP_DF set, claiming it was needed for some VJ compression implementations. As mentioned in this referenced document, this can be abused. (Ref: Off-Path TCP Exploits of the Mixed IPID Assignment) Before switching to pure random IPID generation and possibly hurt some workloads, lets use the private inet socket generator. Not only this will remove one vulnerability, this will also improve performance of TCP flows using pmtudisc==IP_PMTUDISC_DONT Fixes: 73f156a6 ("inetpeer: get rid of ip_id_count") Signed-off-by:
Ray Che <xijiache@gmail.com> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by:
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Eric Dumazet authored
In commit 431280ee ("ipv4: tcp: send zero IPID for RST and ACK sent in SYN-RECV and TIME-WAIT state") we took care of some ctl packets sent by TCP. It turns out we need to use a similar strategy for SYNACK packets. By default, they carry IP_DF and IPID==0, but there are ways to ask them to use the hashed IP ident generator and thus be used to build off-path attacks. (Ref: Off-Path TCP Exploits of the Mixed IPID Assignment) One of this way is to force (before listener is started) echo 1 >/proc/sys/net/ipv4/ip_no_pmtu_disc Another way is using forged ICMP ICMP_FRAG_NEEDED with a very small MTU (like 68) to force a false return from ip_dont_fragment() In this patch, ip_build_and_send_pkt() uses the following heuristics. 1) Most SYNACK packets are smaller than IPV4_MIN_MTU and therefore can use IP_DF regardless of the listener or route pmtu setting. 2) In case the SYNACK packet is bigger than IPV4_MIN_MTU, we use prandom_u32() generator instead of the IPv4 hashed ident one. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
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Mathias Krause authored
A failing usercopy of the fence_rep object will lead to a stale entry in the file descriptor table as put_unused_fd() won't release it. This enables userland to refer to a dangling 'file' object through that still valid file descriptor, leading to all kinds of use-after-free exploitation scenarios. Fix this by deferring the call to fd_install() until after the usercopy has succeeded. Fixes: c906965d ("drm/vmwgfx: Add export fence to file descriptor support") Signed-off-by:
Mathias Krause <minipli@grsecurity.net> Signed-off-by:
Zack Rusin <zackr@vmware.com> Signed-off-by:
Dave Airlie <airlied@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Eric Dumazet authored
For some reason, raw_bind() forgot to lock the socket. BUG: KCSAN: data-race in __ip4_datagram_connect / raw_bind write to 0xffff8881170d4308 of 4 bytes by task 5466 on cpu 0: raw_bind+0x1b0/0x250 net/ipv4/raw.c:739 inet_bind+0x56/0xa0 net/ipv4/af_inet.c:443 __sys_bind+0x14b/0x1b0 net/socket.c:1697 __do_sys_bind net/socket.c:1708 [inline] __se_sys_bind net/socket.c:1706 [inline] __x64_sys_bind+0x3d/0x50 net/socket.c:1706 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881170d4308 of 4 bytes by task 5468 on cpu 1: __ip4_datagram_connect+0xb7/0x7b0 net/ipv4/datagram.c:39 ip4_datagram_connect+0x2a/0x40 net/ipv4/datagram.c:89 inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576 __sys_connect_file net/socket.c:1900 [inline] __sys_connect+0x197/0x1b0 net/socket.c:1917 __do_sys_connect net/socket.c:1927 [inline] __se_sys_connect net/socket.c:1924 [inline] __x64_sys_connect+0x3d/0x50 net/socket.c:1924 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000 -> 0x0003007f Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 5468 Comm: syz-executor.5 Not tainted 5.17.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
syzbot <syzkaller@googlegroups.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
Add missing headers to the IP entry. Reviewed-by:
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Jakub Kicinski authored
include/linux/linkmode.h and include/linux/mii.h do not match anything in MAINTAINERS. Looks like they should be under Ethernet PHY. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Jisheng Zhang authored
When readl_poll_timeout() timeout, we'd better directly use its return value. Before this patch: [ 2.145528] dwmac-sun8i: probe of 4500000.ethernet failed with error -14 After this patch: [ 2.138520] dwmac-sun8i: probe of 4500000.ethernet failed with error -110 Signed-off-by:
Jisheng Zhang <jszhang@kernel.org> Acked-by:
Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by:
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Nikolay Aleksandrov authored
When dumping vlan options for a single net device we send the same entries infinitely because user-space expects a 0 return at the end but we keep returning skb->len and restarting the dump on retry. Fix it by returning the value from br_vlan_dump_dev() if it completed or there was an error. The only case that must return skb->len is when the dump was incomplete and needs to continue (-EMSGSIZE). Reported-by:
Benjamin Poirier <bpoirier@nvidia.com> Fixes: 8dcea187 ("net: bridge: vlan: add rtm definitions and dump support") Signed-off-by:
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David S. Miller authored
Mohammad Athari Bin Ismail says: ==================== Fix PTP issue in stmmac This patch series to fix PTP issue in stmmac related to: 1/ PTP clock source configuration during initialization. 2/ PTP initialization during resume from suspend. ==================== Signed-off-by: -
Mohammad Athari Bin Ismail authored
When resume from suspend, besides skipping PTP registration, it also skipping PTP HW initialization. This could cause PTP clock not able to operate properly when resume from suspend. To fix this, only stmmac_ptp_register() is skipped when resume from suspend. Fixes: fe131929 ("stmmac: Don't init ptp again when resume from suspend/hibernation") Cc: <stable@vger.kernel.org> # 5.15.x Signed-off-by:
Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com> Signed-off-by:
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Mohammad Athari Bin Ismail authored
For Intel platform, it is required to configure PTP clock source prior PTP initialization in MAC. So, need to move ptp_clk_freq_config execution from stmmac_ptp_register() to stmmac_init_ptp(). Fixes: 76da35dc ("stmmac: intel: Add PSE and PCH PTP clock source selection") Cc: <stable@vger.kernel.org> # 5.15.x Signed-off-by:
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Guillaume Nault authored
This reverts commit b75326c2. This commit breaks Linux compatibility with USGv6 tests. The RFC this commit was based on is actually an expired draft: no published RFC currently allows the new behaviour it introduced. Without full IETF endorsement, the flash renumbering scenario this patch was supposed to enable is never going to work, as other IPv6 equipements on the same LAN will keep the 2 hours limit. Fixes: b75326c2 ("ipv6: Honor all IPv6 PIO Valid Lifetime values") Signed-off-by:
Guillaume Nault <gnault@redhat.com> Signed-off-by:
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