#
94106455 |
| 16-Sep-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "The zero-copy changes are relatively significant, but regres
Merge tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "The zero-copy changes are relatively significant, but regression risk should be contained. The feature needs to be used to cause trouble.
Also it feels like we got an order of magnitude more semi-automated "refactoring" chaff than usual, I wonder if it's just us.
Core & protocols:
- Support Device Memory TCP, ability to zero-copy receive TCP payloads to a DMABUF region of memory while packet headers land separately in normal kernel buffers, and TCP processes then as usual.
- The ability to read the PTP PHC (Physical Hardware Clock) alongside MONOTONIC_RAW timestamps with PTP_SYS_OFFSET_EXTENDED. Previously only CLOCK_REALTIME was supported.
- Allow matching on all bits of IP DSCP for routing decisions. Previously we only supported on matching TOS bits in IPv4 which is a narrower interpretation of the same header field.
- Increase the range of weights used for multi-path routing from 8 bits to 16 bits.
- Add support for IPv6 PIO p flag in the Prefix Information Option per draft-ietf-6man-pio-pflag.
- IPv6 IOAM6 support for new tunsrc encap mode for better performance.
- Detect destinations which blackhole MPTCP traffic and avoid initiating MPTCP connections to them for a certain period of time, 1h by default.
- Improve IPsec control path performance by removing the inexact policies list.
- AF_VSOCK: add support for SIOCOUTQ ioctl.
- Add enum for reasons TCP reset was sent for easier tracing.
- Add SMC ringbufs usage statistics.
Drivers:
- Handle netconsole setup failures more gracefully, don't fail loading, retain the specified target as disabled.
- Extend bonding's IPsec offload pass thru capabilities (ESN, stats).
Filtering:
- Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_*sockopt() to address the case when long-lived sockets miss a chance to set additional callbacks if a sockops program was not attached early in their lifetime.
- Support using BPF skb helpers in tracepoints.
- Conntrack Netlink: support CTA_FILTER for flush.
- Improve SCTP support in nfnetlink_queue.
- Improve performance of large nftables flush transactions.
Things we sprinkled into general kernel code:
- selftests: support setting an "interpreter" for script files; make it easy to run as separate cases tests where one "interpreter" is fed various test descriptions (in our case packet sequences).
Driver API:
- Extend core and ethtool APIs to support many PHYs connected to a single interface (PHY topologies).
- Extend cable diagnostics to specify whether Time Domain Reflectometry (TDR) or Active Link Cable Diagnostic (ALCD) was used.
- Add library for implementing MAC-PHY Ethernet drivers for SPI devices compatible with Open Alliance 10BASE-T1x MAC-PHY Serial Interface (TC6) standard.
- Add helpers to the PHY framework, for PHYs following the Open Alliance standards: - 1000BaseT1 link settings - cable test and diagnostics
- Support listing / dumping all allocated RSS contexts.
- Add configuration for frequency Embedded SYNC in DPLL, which magically embeds sync pulses into Ethernet signaling.
Device drivers:
- Ethernet high-speed NICs: - Broadcom (bnxt): - use better FW APIs for queue reset - support QOS and TPID settings for the SR-IOV VLAN - support dynamic MSI-X allocation - Intel (100G, ice, idpf): - ice: support PCIe subfunctions - iavf: add support for TC U32 filters on VFs - ice: support Embedded SYNC in DPLL - nVidia/Mellanox (mlx5): - support HW managed steering tables - support PCIe PTM cross timestamping - AMD/Pensando: - ionic: use page_pool to increase Rx performance - Cisco (enic): - report per-queue statistics
- Ethernet virtual: - Microsoft vNIC: - mana: support configuring ring length - netvsc: enable more channels on systems with many CPUs - IBM veth: - optimize polling to improve TCP_RR performance - optimize performance of Tx handling - VirtIO net: - synchronize the operstate with the admin state to allow a lower virtio-net to propagate the link status to an upper device like macvlan
- Ethernet NICs consumer, and embedded: - Add driver for Realtek automotive PCIe devices (RTL9054, RTL9068, RTL9072, RTL9075, RTL9068, RTL9071) - Add driver for Microchip LAN8650/1 10BASE-T1S MAC-PHY. - Microchip: - lan743x: use phylink - support WOL, EEE, pause, link settings - add Wake-on-LAN support for KSZ87xx family - add KSZ8895/KSZ8864 switch support - factor out FDMA code and use it in sparx5 and lan966x (including DCB support in both) - Synopsys (stmmac): - support frame preemption (configured using TC and ethtool) - support Loongson DWMAC (GMAC v3.73) - support RockChips RK3576 DWMAC - TI: - am65-cpsw: add multi queue RX support - icssg-prueth: HSR offload support - Cadence (macb): - enable software (hrtimer based) IRQ coalescing by default - Xilinx (axinet): - expose HW statistics - improve multicast filtering - relax Rx checksum offload constraints - MediaTek: - mt7530: add EN7581 support - Aspeed (ftgmac100): - report link speed and duplex - Intel: - igc: add mqprio offload - igc: report EEE configuration - RealTek (r8169): - add support for RTL8126A rev.b - Vitesse (vsc73xx): - implement FDB add/del/dump operations - Freescale (fs_enet): - use phylink
- Ethernet PHYs: - vitesse: implement downshift and MDI-X in vsc73xx PHYs - microchip: support LAN887x, supporting IEEE 802.3bw (100BASE-T1) and IEEE 802.3bp (1000BASE-T1) specifications - add Applied Micro QT2025 PHY driver (in Rust) - add Motorcomm yt8821 2.5G Ethernet PHY driver
- CAN: - add driver for Rockchip RK3568 CAN-FD controller - flexcan: add wakeup support for imx95 - kvaser_usb: set hardware timestamp on transmitted packets
- WiFi: - mac80211/cfg80211: - EHT rate support in AQL airtime fairness - handle DFS (radar detection) per link in Multi-Link Operation - RealTek (rtw89): - support RTL8852BT and 8852BE-VT (WiFi 6) - support hardware rfkill - support HW encryption in unicast management frames - support Wake-on-WLAN with supported network detection - RealTek (rtw89): - improve Rx performance by using USB frame aggregation - support USB 3 with RTL8822CU/RTL8822BU - Intel (iwlwifi/mvm): - offload RLC/SMPS functionality to firmware - Marvell (mwifiex): - add host based MLME to enable WPA3
- Bluetooth: - add support for Amlogic HCI UART protocol - add support for ISO data/packets to Intel and NXP drivers"
* tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1303 commits) net/mlx5: HWS, check the correct variable in hws_send_ring_alloc_sq() netfilter: nft_socket: Fix a NULL vs IS_ERR() bug in nft_socket_cgroup_subtree_level() ice: Fix a NULL vs IS_ERR() check in probe() ice: Fix a couple NULL vs IS_ERR() bugs net: ethernet: fs_enet: Make the per clock optional net: ti: icssg-prueth: Add multicast filtering support in HSR mode net: ti: icssg-prueth: Enable HSR Tx duplication, Tx Tag and Rx Tag offload net: ti: icssg-prueth: Add support for HSR frame forward offload net: ti: icssg-prueth: Stop hardcoding def_inc net: ti: icss-iep: Move icss_iep structure net: ibm: emac: get rid of wol_irq net: ibm: emac: remove all waiting code net: ibm: emac: replace of_get_property net: ibm: emac: use netdev's phydev directly net: ibm: emac: use devm for register_netdev net: ibm: emac: remove mii_bus with devm net: ibm: emac: use devm for of_iomap net: ibm: emac: manage emac_irq with devm net: ibm: emac: use devm for alloc_etherdev octeontx2-af: debugfs: Add Channel info to RPM map ...
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Revision tags: v6.11, v6.11-rc7, v6.11-rc6 |
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#
b2ede25b |
| 26-Aug-2024 |
Jakub Kicinski <kuba@kernel.org> |
Merge tag 'nf-next-24-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
==================== Netfilter updates for net-next
The following batch cont
Merge tag 'nf-next-24-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
==================== Netfilter updates for net-next
The following batch contains Netfilter updates for net-next:
Patch #1 fix checksum calculation in nfnetlink_queue with SCTP, segment GSO packet since skb_zerocopy() does not support GSO_BY_FRAGS, from Antonio Ojea.
Patch #2 extend nfnetlink_queue coverage to handle SCTP packets, from Antonio Ojea.
Patch #3 uses consume_skb() instead of kfree_skb() in nfnetlink, from Donald Hunter.
Patch #4 adds a dedicate commit list for sets to speed up intra-transaction lookups, from Florian Westphal.
Patch #5 skips removal of element from abort path for the pipapo backend, ditching the shadow copy of this datastructure is sufficient.
Patch #6 moves nf_ct_netns_get() out of nf_conncount_init() to let users of conncoiunt decide when to enable conntrack, this is needed by openvswitch, from Xin Long.
Patch #7 pass context to all nft_parse_register_load() in preparation for the next patch.
Patches #8 and #9 reject loads from uninitialized registers from control plane to remove register initialization from datapath. From Florian Westphal.
* tag 'nf-next-24-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next: netfilter: nf_tables: don't initialize registers in nft_do_chain() netfilter: nf_tables: allow loads only when register is initialized netfilter: nf_tables: pass context structure to nft_parse_register_load netfilter: move nf_ct_netns_get out of nf_conncount_init netfilter: nf_tables: do not remove elements if set backend implements .abort netfilter: nf_tables: store new sets in dedicated list netfilter: nfnetlink: convert kfree_skb to consume_skb selftests: netfilter: nft_queue.sh: sctp coverage netfilter: nfnetlink_queue: unbreak SCTP traffic ====================
Link: https://patch.msgid.link/20240822221939.157858-1-pablo@netfilter.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Revision tags: v6.11-rc5 |
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#
7ea0522e |
| 20-Aug-2024 |
Florian Westphal <fw@strlen.de> |
netfilter: nf_tables: pass context structure to nft_parse_register_load
Mechanical transformation, no logical changes intended.
Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo N
netfilter: nf_tables: pass context structure to nft_parse_register_load
Mechanical transformation, no logical changes intended.
Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Revision tags: v6.11-rc4, v6.11-rc3, v6.11-rc2, v6.11-rc1, v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2, v6.10-rc1, v6.9, v6.9-rc7, v6.9-rc6, v6.9-rc5, v6.9-rc4, v6.9-rc3, v6.9-rc2, v6.9-rc1, v6.8, v6.8-rc7, v6.8-rc6, v6.8-rc5, v6.8-rc4, v6.8-rc3, v6.8-rc2, v6.8-rc1, v6.7, v6.7-rc8, v6.7-rc7, v6.7-rc6, v6.7-rc5, v6.7-rc4, v6.7-rc3, v6.7-rc2, v6.7-rc1 |
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#
cdd5b5a9 |
| 07-Nov-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.7 merge window.
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Revision tags: v6.6, v6.6-rc7, v6.6-rc6, v6.6-rc5, v6.6-rc4, v6.6-rc3, v6.6-rc2 |
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#
c900529f |
| 12-Sep-2023 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-fixes into drm-misc-fixes
Forwarding to v6.6-rc1.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Revision tags: v6.6-rc1 |
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#
34069d12 |
| 05-Sep-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v6.5' into next
Sync up with mainline to bring in updates to the shared infrastructure.
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#
1ac731c5 |
| 31-Aug-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.6 merge window.
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Revision tags: v6.5 |
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#
3fb5a656 |
| 23-Aug-2023 |
Christian Brauner <brauner@kernel.org> |
Merge tag 'vfs-6.6-merge-2' of ssh://gitolite.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull filesystem freezing updates from Darrick Wong:
New code for 6.6:
* Allow the kernel to initiate a freeze of
Merge tag 'vfs-6.6-merge-2' of ssh://gitolite.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull filesystem freezing updates from Darrick Wong:
New code for 6.6:
* Allow the kernel to initiate a freeze of a filesystem. The kernel and userspace can both hold a freeze on a filesystem at the same time; the freeze is not lifted until /both/ holders lift it. This will enable us to fix a longstanding bug in XFS online fsck.
Signed-off-by: Darrick J. Wong <djwong@kernel.org> Message-Id: <20230822182604.GB11286@frogsfrogsfrogs> Signed-off-by: Christian Brauner <brauner@kernel.org>
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#
a3dd14c0 |
| 21-Aug-2023 |
Georgi Djakov <djakov@kernel.org> |
Merge tag 'v6.5-rc6' into icc-next
The fixes that got merged into v6.5-rc6 are needed here.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Revision tags: v6.5-rc7, v6.5-rc6 |
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#
2612e3bb |
| 07-Aug-2023 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
Catching-up with drm-next and drm-intel-gt-next. It will unblock a code refactor around the platform definitions (names vs acronyms).
Signed-off-by: Rodrigo V
Merge drm/drm-next into drm-intel-next
Catching-up with drm-next and drm-intel-gt-next. It will unblock a code refactor around the platform definitions (names vs acronyms).
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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#
9f771739 |
| 07-Aug-2023 |
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> |
Merge drm/drm-next into drm-intel-gt-next
Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as a dependency for https://patchwork.freedesktop.org/series/1
Merge drm/drm-next into drm-intel-gt-next
Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as a dependency for https://patchwork.freedesktop.org/series/121735/
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Revision tags: v6.5-rc5, v6.5-rc4 |
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#
61b73694 |
| 24-Jul-2023 |
Thomas Zimmermann <tzimmermann@suse.de> |
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.5-rc2.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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#
447281e7 |
| 24-Jul-2023 |
Mark Brown <broonie@kernel.org> |
regulator: Merge up fixes from mainline
There's several things here that will really help my CI.
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#
9c214af0 |
| 24-Jul-2023 |
Mark Brown <broonie@kernel.org> |
regmap: Merge up fixes from mainline
There's several things here that will really help my CI.
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#
0b201982 |
| 24-Jul-2023 |
Mark Brown <broonie@kernel.org> |
spi: Merge up fixes from mainline
There's several things here that will really help my CI.
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Revision tags: v6.5-rc3 |
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#
5f69c65e |
| 20-Jul-2023 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-fix-v6.5-rc1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.5
A few more fixes for v6.5, just small driver specific ones.
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#
752182b2 |
| 19-Jul-2023 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v6.5-rc2' into sched/core, to pick up fixes
Sync with upstream fixes before applying EEVDF.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
4619dd77 |
| 19-Jul-2023 |
Mark Brown <broonie@kernel.org> |
ASoC: Improve coverage in default KUnit runs
Merge series from Mark Brown <broonie@kernel.org>:
We have some KUnit tests for ASoC but they're not being run as much as they should be since ASoC isn'
ASoC: Improve coverage in default KUnit runs
Merge series from Mark Brown <broonie@kernel.org>:
We have some KUnit tests for ASoC but they're not being run as much as they should be since ASoC isn't enabled in the configs used by default with KUnit and in the case of the topology tests there is no way to enable them without enabling drivers that use them. This series provides a Kconfig option which KUnit can use directly rather than worry about drivers.
Further, since KUnit is typically run in UML but ALSA prevents build with UML we need to remove that Kconfig conflict. As far as I can tell the motiviation for this is that many ALSA drivers use iomem APIs which are not available under UML and it's more trouble than it's worth to go through and add per driver dependencies. In order to avoid these issues we also provide stubs for these APIs so there are no build time issues if a driver relies on iomem but does not depend on it. With these stubs I am able to build all the sound drivers available in a UML defconfig (UML allmodconfig appears to have substantial other issues in a quick test).
With this series I am able to run the topology KUnit tests as part of a kunit --alltests run.
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#
21634f0f |
| 18-Jul-2023 |
Takashi Iwai <tiwai@suse.de> |
Merge branch 'topic/hda-pci-ids' into for-next
Pull cleanup of HD-audio PCI IDs.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
50501936 |
| 17-Jul-2023 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v6.4' into next
Sync up with mainline to bring in updates to shared infrastructure.
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#
0791faeb |
| 17-Jul-2023 |
Mark Brown <broonie@kernel.org> |
ASoC: Merge v6.5-rc2
Get a similar baseline to my other branches, and fixes for people using the branch.
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Revision tags: v6.5-rc2 |
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#
eb1b24a9 |
| 14-Jul-2023 |
Jakub Kicinski <kuba@kernel.org> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts or adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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#
b1983d42 |
| 13-Jul-2023 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni: "Including fixes from netfilter, wireless and ebpf.
Current release -
Merge tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni: "Including fixes from netfilter, wireless and ebpf.
Current release - regressions:
- netfilter: conntrack: gre: don't set assured flag for clash entries
- wifi: iwlwifi: remove 'use_tfh' config to fix crash
Previous releases - regressions:
- ipv6: fix a potential refcount underflow for idev
- icmp6: ifix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev()
- bpf: fix max stack depth check for async callbacks
- eth: mlx5e: - check for NOT_READY flag state after locking - fix page_pool page fragment tracking for XDP
- eth: igc: - fix tx hang issue when QBV gate is closed - fix corner cases for TSN offload
- eth: octeontx2-af: Move validation of ptp pointer before its usage
- eth: ena: fix shift-out-of-bounds in exponential backoff
Previous releases - always broken:
- core: prevent skb corruption on frag list segmentation
- sched: - cls_fw: fix improper refcount update leads to use-after-free - sch_qfq: account for stab overhead in qfq_enqueue
- netfilter: - report use refcount overflow - prevent OOB access in nft_byteorder_eval
- wifi: mt7921e: fix init command fail with enabled device
- eth: ocelot: fix oversize frame dropping for preemptible TCs
- eth: fec: recycle pages for transmitted XDP frames"
* tag 'net-6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits) selftests: tc-testing: add test for qfq with stab overhead net/sched: sch_qfq: account for stab overhead in qfq_enqueue selftests: tc-testing: add tests for qfq mtu sanity check net/sched: sch_qfq: reintroduce lmax bound check for MTU wifi: cfg80211: fix receiving mesh packets without RFC1042 header wifi: rtw89: debug: fix error code in rtw89_debug_priv_send_h2c_set() net: txgbe: fix eeprom calculation error net/sched: make psched_mtu() RTNL-less safe net: ena: fix shift-out-of-bounds in exponential backoff netdevsim: fix uninitialized data in nsim_dev_trap_fa_cookie_write() net/sched: flower: Ensure both minimum and maximum ports are specified MAINTAINERS: Add another mailing list for QUALCOMM ETHQOS ETHERNET DRIVER docs: netdev: update the URL of the status page wifi: iwlwifi: remove 'use_tfh' config to fix crash xdp: use trusted arguments in XDP hints kfuncs bpf: cpumap: Fix memory leak in cpu_map_update_elem wifi: airo: avoid uninitialized warning in airo_get_rate() octeontx2-pf: Add additional check for MCAM rules net: dsa: Removed unneeded of_node_put in felix_parse_ports_node net: fec: use netdev_err_once() instead of netdev_err() ...
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Revision tags: v6.5-rc1 |
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#
ceb20a3c |
| 06-Jul-2023 |
Paolo Abeni <pabeni@redhat.com> |
Merge tag 'nf-23-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
==================== Netfilter fixes for net
The following patchset contains Netfilter
Merge tag 'nf-23-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
==================== Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix missing overflow use refcount checks in nf_tables.
2) Do not set IPS_ASSURED for IPS_NAT_CLASH entries in GRE tracker, from Florian Westphal.
3) Bail out if nf_ct_helper_hash is NULL before registering helper, from Florent Revest.
4) Use siphash() instead siphash_4u64() to fix performance regression, also from Florian.
5) Do not allow to add rules to removed chains via ID, from Thadeu Lima de Souza Cascardo.
6) Fix oob read access in byteorder expression, also from Thadeu.
netfilter pull request 23-07-06
====================
Link: https://lore.kernel.org/r/20230705230406.52201-1-pablo@netfilter.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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#
1689f259 |
| 28-Jun-2023 |
Pablo Neira Ayuso <pablo@netfilter.org> |
netfilter: nf_tables: report use refcount overflow
Overflow use refcount checks are not complete.
Add helper function to deal with object reference counter tracking. Report -EMFILE in case UINT_MAX
netfilter: nf_tables: report use refcount overflow
Overflow use refcount checks are not complete.
Add helper function to deal with object reference counter tracking. Report -EMFILE in case UINT_MAX is reached.
nft_use_dec() splats in case that reference counter underflows, which should not ever happen.
Add nft_use_inc_restore() and nft_use_dec_restore() which are used to restore reference counter from error and abort paths.
Use u32 in nft_flowtable and nft_object since helper functions cannot work on bitfields.
Remove the few early incomplete checks now that the helper functions are in place and used to check for refcount overflow.
Fixes: 96518518cc41 ("netfilter: add nftables") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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