user/sven/linux.git/include, branch v5.5.1

udp: segment looped gso packets correctly

2020-02-01T09:32:58Z

[ Upstream commit 6cd021a58c18a1731f7e47f83e172c0c302d65e5 ] Multicast and broadcast packets can be looped from egress to ingress pre segmentation with dev_loopback_xmit. That function unconditionally sets ip_summed to CHECKSUM_UNNECESSARY. udp_rcv_segment segments gso packets in the udp rx path. Segmentation usually executes on egress, and does not expect packets of this type. __udp_gso_segment interprets !CHECKSUM_PARTIAL as CHECKSUM_NONE. But the offsets are not correct for gso_make_checksum. UDP GSO packets are of type CHECKSUM_PARTIAL, with their uh->check set to the correct pseudo header checksum. Reset ip_summed to this type. (CHECKSUM_PARTIAL is allowed on ingress, see comments in skbuff.h) Reported-by: syzbot Fixes: cf329aa42b66 ("udp: cope with UDP GRO packet misdirection") Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

net_sched: fix ops->bind_class() implementations

2020-02-01T09:32:57Z

[ Upstream commit 2e24cd755552350b94a7617617c6877b8cbcb701 ] The current implementations of ops->bind_class() are merely searching for classid and updating class in the struct tcf_result, without invoking either of cl_ops->bind_tcf() or cl_ops->unbind_tcf(). This breaks the design of them as qdisc's like cbq use them to count filters too. This is why syzbot triggered the warning in cbq_destroy_class(). In order to fix this, we have to call cl_ops->bind_tcf() and cl_ops->unbind_tcf() like the filter binding path. This patch does so by refactoring out two helper functions __tcf_bind_filter() and __tcf_unbind_filter(), which are lockless and accept a Qdisc pointer, then teaching each implementation to call them correctly. Note, we merely pass the Qdisc pointer as an opaque pointer to each filter, they only need to pass it down to the helper functions without understanding it at all. Fixes: 07d79fc7d94e ("net_sched: add reverse binding for tc class") Reported-and-tested-by: syzbot+0a0596220218fcb603a8@syzkaller.appspotmail.com Reported-and-tested-by: syzbot+63bdb6006961d8c917c6@syzkaller.appspotmail.com Cc: Jamal Hadi Salim Cc: Jiri Pirko Signed-off-by: Cong Wang Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

USB: serial: ir-usb: fix link-speed handling

2020-02-01T09:32:52Z

commit 17a0184ca17e288decdca8b2841531e34d49285f upstream. Commit e0d795e4f36c ("usb: irda: cleanup on ir-usb module") added a USB IrDA header with common defines, but mistakingly switched to using the class-descriptor baud-rate bitmask values for the outbound header. This broke link-speed handling for rates above 9600 baud, but a device would also be able to operate at the default 9600 baud until a link-speed request was issued (e.g. using the TCGETS ioctl). Fixes: e0d795e4f36c ("usb: irda: cleanup on ir-usb module") Cc: stable # 2.6.27 Cc: Felipe Balbi Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

Merge tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block

2020-01-26T20:12:36Z

Pull block fix from Jens Axboe: "Unfortunately this weekend we had a few last minute reports, one was for block. The partition disable for zoned devices was overly restrictive, it can work (and be supported) just fine for host-aware variants. Here's a fix ensuring that's the case so we don't break existing users of that" * tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block: block: allow partitions on host aware zone devices

block: allow partitions on host aware zone devices

2020-01-26T16:59:08Z

Host-aware SMR drives can be used with the commands to explicitly manage zone state, but they can also be used as normal disks. In the former case it makes perfect sense to allow partitions on them, in the latter it does not, just like for host managed devices. Add a check to add_partition to allow partitions on host aware devices, but give up any zone management capabilities in that case, which also catches the previously missed case of adding a partition vs just scanning it. Because sd can rescan the attribute at runtime it needs to check if a disk has partitions, for which a new helper is added to genhd.h. Fixes: 5eac3eb30c9a ("block: Remove partition support for zoned block devices") Reported-by: Borislav Petkov Signed-off-by: Christoph Hellwig Tested-by: Damien Le Moal Reviewed-by: Damien Le Moal Signed-off-by: Jens Axboe

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-01-25T22:19:32Z

Pull networking fixes from David Miller: 1) Off by one in mt76 airtime calculation, from Dan Carpenter. 2) Fix TLV fragment allocation loop condition in iwlwifi, from Luca Coelho. 3) Don't confirm neigh entries when doing ipsec pmtu updates, from Xu Wang. 4) More checks to make sure we only send TSO packets to lan78xx chips that they can actually handle. From James Hughes. 5) Fix ip_tunnel namespace move, from William Dauchy. 6) Fix unintended packet reordering due to cooperation between listification done by GRO and non-GRO paths. From Maxim Mikityanskiy. 7) Add Jakub Kicincki formally as networking co-maintainer. 8) Info leak in airo ioctls, from Michael Ellerman. 9) IFLA_MTU attribute needs validation during rtnl_create_link(), from Eric Dumazet. 10) Use after free during reload in mlxsw, from Ido Schimmel. 11) Dangling pointers are possible in tp->highest_sack, fix from Eric Dumazet. 12) Missing *pos++ in various networking seq_next handlers, from Vasily Averin. 13) CHELSIO_GET_MEM operation neds CAP_NET_ADMIN check, from Michael Ellerman. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (109 commits) firestream: fix memory leaks net: cxgb3_main: Add CAP_NET_ADMIN check to CHELSIO_GET_MEM net: bcmgenet: Use netif_tx_napi_add() for TX NAPI tipc: change maintainer email address net: stmmac: platform: fix probe for ACPI devices net/mlx5e: kTLS, Do not send decrypted-marked SKBs via non-accel path net/mlx5e: kTLS, Remove redundant posts in TX resync flow net/mlx5e: kTLS, Fix corner-case checks in TX resync flow net/mlx5e: Clear VF config when switching modes net/mlx5: DR, use non preemptible call to get the current cpu number net/mlx5: E-Switch, Prevent ingress rate configuration of uplink rep net/mlx5: DR, Enable counter on non-fwd-dest objects net/mlx5: Update the list of the PCI supported devices net/mlx5: Fix lowest FDB pool size net: Fix skb->csum update in inet_proto_csum_replace16(). netfilter: nf_tables: autoload modules from the abort path netfilter: nf_tables: add __nft_chain_type_get() netfilter: nf_tables_offload: fix check the chain offload flag netfilter: conntrack: sctp: use distinct states for new SCTP connections ipv6_route_seq_next should increase position index ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

2020-01-25T20:40:39Z

Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Missing netlink attribute sanity check for NFTA_OSF_DREG, from Florian Westphal. 2) Use bitmap infrastructure in ipset to fix KASAN slab-out-of-bounds reads, from Jozsef Kadlecsik. 3) Missing initial CLOSED state in new sctp connection through ctnetlink events, from Jiri Wiesner. 4) Missing check for NFT_CHAIN_HW_OFFLOAD in nf_tables offload indirect block infrastructure, from wenxu. 5) Add __nft_chain_type_get() to sanity check family and chain type. 6) Autoload modules from the nf_tables abort path to fix races reported by syzbot. 7) Remove unnecessary skb->csum update on inet_proto_csum_replace16(), from Praveen Chaudhary. ==================== Signed-off-by: David S. Miller

netfilter: nf_tables: autoload modules from the abort path

2020-01-24T19:54:29Z

This patch introduces a list of pending module requests. This new module list is composed of nft_module_request objects that contain the module name and one status field that tells if the module has been already loaded (the 'done' field). In the first pass, from the preparation phase, the netlink command finds that a module is missing on this list. Then, a module request is allocated and added to this list and nft_request_module() returns -EAGAIN. This triggers the abort path with the autoload parameter set on from nfnetlink, request_module() is called and the module request enters the 'done' state. Since the mutex is released when loading modules from the abort phase, the module list is zapped so this is iteration occurs over a local list. Therefore, the request_module() calls happen when object lists are in consistent state (after fulling aborting the transaction) and the commit list is empty. On the second pass, the netlink command will find that it already tried to load the module, so it does not request it again and nft_request_module() returns 0. Then, there is a look up to find the object that the command was missing. If the module was successfully loaded, the command proceeds normally since it finds the missing object in place, otherwise -ENOENT is reported to userspace. This patch also updates nfnetlink to include the reason to enter the abort phase, which is required for this new autoload module rationale. Fixes: ec7470b834fe ("netfilter: nf_tables: store transaction list locally while requesting module") Reported-by: syzbot+29125d208b3dae9a7019@syzkaller.appspotmail.com Signed-off-by: Pablo Neira Ayuso

Merge tag 'xarray-5.5' of git://git.infradead.org/users/willy/linux-dax

2020-01-23T19:37:19Z

Pull XArray fixes from Matthew Wilcox: "Primarily bugfixes, mostly around handling index wrap-around correctly. A couple of doc fixes and adding missing APIs. I had an oops live on stage at linux.conf.au this year, and it turned out to be a bug in xas_find() which I can't prove isn't triggerable in the current codebase. Then in looking for the bug, I spotted two more bugs. The bots have had a few days to chew on this with no problems reported, and it passes the test-suite (which now has more tests to make sure these problems don't come back)" * tag 'xarray-5.5' of git://git.infradead.org/users/willy/linux-dax: XArray: Add xa_for_each_range XArray: Fix xas_find returning too many entries XArray: Fix xa_find_after with multi-index entries XArray: Fix infinite loop with entry at ULONG_MAX XArray: Add wrappers for nested spinlocks XArray: Improve documentation of search marks XArray: Fix xas_pause at ULONG_MAX

Merge tag 'trace-v5.5-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2020-01-23T19:23:37Z

Pull tracing fixes from Steven Rostedt: "Various tracing fixes: - Fix a function comparison warning for a xen trace event macro - Fix a double perf_event linking to a trace_uprobe_filter for multiple events - Fix suspicious RCU warnings in trace event code for using list_for_each_entry_rcu() when the "_rcu" portion wasn't needed. - Fix a bug in the histogram code when using the same variable - Fix a NULL pointer dereference when tracefs lockdown enabled and calling trace_set_default_clock() - A fix to a bug found with the double perf_event linking patch" * tag 'trace-v5.5-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing/uprobe: Fix to make trace_uprobe_filter alignment safe tracing: Do not set trace clock if tracefs lockdown is in effect tracing: Fix histogram code when expression has same var as value tracing: trigger: Replace unneeded RCU-list traversals tracing/uprobe: Fix double perf_event linking on multiprobe uprobe tracing: xen: Ordered comparison of function pointers