- 10 Mar, 2019 40 commits
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Balaji Manoharan authored
commit 8fde481e upstream. This fix enables USB role feature on intel commercial nuc platform which is based on Kabylake chipset. Signed-off-by:
Balaji Manoharan <m.balaji@intel.com> Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Reviewed-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Pavel Tikhomirov authored
commit 6a072128 upstream. Then tracing syscall exit event it is extremely useful to filter exit codes equal to some negative value, to react only to required errors. But negative numbers does not work: [root@snorch sys_exit_read]# echo "ret == -1" > filter bash: echo: write error: Invalid argument [root@snorch sys_exit_read]# cat filter ret == -1 ^ parse_error: Invalid value (did you forget quotes)? Similar thing happens when setting triggers. These is a regression in v4.17 introduced by the commit mentioned below, testing without these commit shows no problem with negative numbers. Link: http://lkml.kernel.org/r/20180823102534.7642-1-ptikhomirov@virtuozzo.com Cc: stable@vger.kernel.org Fixes: 80765597 ("tracing: Rewrite filter logic to be simpler and faster") Signed-off-by:
Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by:
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Kirill A. Shutemov authored
commit 6f913de3 upstream. EFI systems do not necessarily provide a legacy ROM. If the ROM is missing the memory is not mapped at all. Trying to dereference values in the legacy ROM area leads to a crash on Macbook Pro. Only look for values in the legacy ROM area for non-EFI system. Fixes: 3548e131 ("x86/boot/compressed/64: Find a place for 32-bit trampoline") Reported-by:
Pitam Mitra <pitamm@gmail.com> Signed-off-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Tested-by:
Bockjoo Kim <bockjoo@phys.ufl.edu> Cc: bp@alien8.de Cc: hpa@zytor.com Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20190219075224.35058-1-kirill.shutemov@linux.intel.com Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202351Signed-off-by:
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Jiaxun Yang authored
commit 02371991 upstream. Some F17h models do not have CPB set in CPUID even though the CPU supports it. Set the feature bit unconditionally on all F17h. [ bp: Rewrite commit message and patch. ] Signed-off-by:
Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by:
Borislav Petkov <bp@suse.de> Acked-by:
Tom Lendacky <thomas.lendacky@amd.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Sherry Hurwitz <sherry.hurwitz@amd.com> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20181120030018.5185-1-jiaxun.yang@flygoat.comSigned-off-by:
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Vlad Buslov authored
[ Upstream commit a3df633a ] Metadata pointer is only initialized for action TCA_TUNNEL_KEY_ACT_SET, but it is unconditionally dereferenced in tunnel_key_init() error handler. Verify that metadata pointer is not NULL before dereferencing it in tunnel_key_init error handling code. Fixes: ee28bb56 ("net/sched: fix memory leak in act_tunnel_key_init()") Signed-off-by:
Vlad Buslov <vladbu@mellanox.com> Reviewed-by:
Davide Caratti <dcaratti@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Davide Caratti authored
[ Upstream commit 6191da98 ] when act_skbedit was converted to use RCU in the data plane, we added an error path, but we forgot to drop the action refcount in case of failure during a 'replace' operation: # tc actions add action skbedit ptype otherhost pass index 100 # tc action show action skbedit total acts 1 action order 0: skbedit ptype otherhost pass index 100 ref 1 bind 0 # tc actions replace action skbedit ptype otherhost drop index 100 RTNETLINK answers: Cannot allocate memory We have an error talking to the kernel # tc action show action skbedit total acts 1 action order 0: skbedit ptype otherhost pass index 100 ref 2 bind 0 Ensure we call tcf_idr_release(), in case 'params_new' allocation failed, also when the action is being replaced. Fixes: c749cdda ("net/sched: act_skbedit: don't use spinlock in the data path") Signed-off-by:
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Davide Caratti authored
[ Upstream commit 8f67c90e ] After commit 4e8ddd7f ("net: sched: don't release reference on action overwrite"), the error path of all actions was converted to drop refcount also when the action was being overwritten. But we forgot act_ipt_init(), in case allocation of 'tname' was not successful: # tc action add action xt -j LOG --log-prefix hello index 100 tablename: mangle hook: NF_IP_POST_ROUTING target: LOG level warning prefix "hello" index 100 # tc action show action xt total acts 1 action order 0: tablename: mangle hook: NF_IP_POST_ROUTING target LOG level warning prefix "hello" index 100 ref 1 bind 0 # tc action replace action xt -j LOG --log-prefix world index 100 tablename: mangle hook: NF_IP_POST_ROUTING target: LOG level warning prefix "world" index 100 RTNETLINK answers: Cannot allocate memory We have an error talking to the kernel # tc action show action xt total acts 1 action order 0: tablename: mangle hook: NF_IP_POST_ROUTING target LOG level warning prefix "hello" index 100 ref 2 bind 0 Ensure we call tcf_idr_release(), in case 'tname' allocation failed, also when the action is being replaced. Fixes: 4e8ddd7f ("net: sched: don't release reference on action overwrite") Signed-off-by:
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Heiner Kallweit authored
[ Upstream commit ed8fe202 ] When debugging another issue I faced an interrupt storm in this driver (88E6390, port 9 in SGMII mode), consisting of alternating link-up / link-down interrupts. Analysis showed that the driver wanted to set a cmode that was set already. But so far mv88e6390x_port_set_cmode() doesn't check this and powers down SERDES, what causes the link to break, and eventually results in the described interrupt storm. Fix this by checking whether the cmode actually changes. We want that the very first call to mv88e6390x_port_set_cmode() always configures the registers, therefore initialize port.cmode with a value that is different from any supported cmode value. We have to take care that we only init the ports cmode once chip->info->num_ports is set. v2: - add small helper and init the number of actual ports only Fixes: 364e9d77 ("net: dsa: mv88e6xxx: Power on/off SERDES on cmode change") Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Maxime Chevallier authored
[ Upstream commit d235c48b ] Upon setting the cmode on 6390 and 6390X, the associated serdes interfaces must be powered off/on. Both 6390X and 6390 share code to do so, but it currently uses the 6390 specific helper mv88e6390_serdes_power() to disable and enable the serdes interface. This call will fail silently on 6390X when trying so set a 10G interface such as XAUI or RXAUI, since mv88e6390_serdes_power() internally grabs the lane number based on modes supported by the 6390, and returns 0 when getting -ENODEV as a lane number. Using mv88e6390x_serdes_power() should be safe here, since we explicitly rule-out all ports but the 9 and 10, and because modes supported by 6390 ports 9 and 10 are a subset of those supported on 6390X. This was tested on 6390X using RXAUI mode. Fixes: 364e9d77 ("net: dsa: mv88e6xxx: Power on/off SERDES on cmode change") Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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David Ahern authored
[ Upstream commit a1fd1ad2 ] ip_route_input_rcu expects the original ingress device (e.g., for proper multicast handling). The skb->dev can be changed by l3mdev_ip_rcv, so dev needs to be saved prior to calling it. This was the behavior prior to the listify changes. Fixes: 5fa12739 ("net: ipv4: listify ip_rcv_finish") Cc: Edward Cree <ecree@solarflare.com> Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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David Ahern authored
[ Upstream commit be48220e ] MPLS does not support nexthops with an MPLS address family. Specifically, it does not handle RTA_GATEWAY attribute. Make it clear by returning an error. Fixes: 03c05665 ("mpls: Netlink commands to add, remove, and dump routes") Signed-off-by:
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David Ahern authored
[ Upstream commit e3818541 ] IPv6 currently does not support nexthops outside of the AF_INET6 family. Specifically, it does not handle RTA_VIA attribute. If it is passed in a route add request, the actual route added only uses the device which is clearly not what the user intended: $ ip -6 ro add 2001:db8:2::/64 via inet 172.16.1.1 dev eth0 $ ip ro ls ... 2001:db8:2::/64 dev eth0 metric 1024 pref medium Catch this and fail the route add: $ ip -6 ro add 2001:db8:2::/64 via inet 172.16.1.1 dev eth0 Error: IPv6 does not support RTA_VIA attribute. Fixes: 03c05665 ("mpls: Netlink commands to add, remove, and dump routes") Signed-off-by:
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David Ahern authored
[ Upstream commit b6e9e5df ] IPv4 currently does not support nexthops outside of the AF_INET family. Specifically, it does not handle RTA_VIA attribute. If it is passed in a route add request, the actual route added only uses the device which is clearly not what the user intended: $ ip ro add 172.16.1.0/24 via inet6 2001:db8:1::1 dev eth0 $ ip ro ls ... 172.16.1.0/24 dev eth0 Catch this and fail the route add: $ ip ro add 172.16.1.0/24 via inet6 2001:db8:1::1 dev eth0 Error: IPv4 does not support RTA_VIA attribute. Fixes: 03c05665 ("mpls: Netlink commands to add, remove, and dump routes") Signed-off-by:
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Nazarov Sergey authored
[ Upstream commit 3da1ed7a ] Extract IP options in cipso_v4_error and use __icmp_send. Signed-off-by:
Sergey Nazarov <s-nazarov@yandex.ru> Acked-by:
Paul Moore <paul@paul-moore.com> Signed-off-by:
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Nazarov Sergey authored
[ Upstream commit 9ef6b42a ] Add __icmp_send function having ip_options struct parameter Signed-off-by:
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Timur Celik authored
[ Upstream commit ecef67cb ] Replace set_current_state with __set_current_state since no memory barrier is needed at this point. Signed-off-by:
Timur Celik <mail@timurcelik.de> Reviewed-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Igor Druzhinin authored
[ Upstream commit 99e87f56 ] Zero-copy callback flag is not yet set on frag list skb at the moment xenvif_handle_frag_list() returns -ENOMEM. This eventually results in leaking grant ref mappings since xenvif_zerocopy_callback() is never called for these fragments. Those eventually build up and cause Xen to kill Dom0 as the slots get reused for new mappings: "d0v0 Attempt to implicitly unmap a granted PTE c010000329fce005" That behavior is observed under certain workloads where sudden spikes of page cache writes coexist with active atomic skb allocations from network traffic. Additionally, rework the logic to deal with frag_list deallocation in a single place. Signed-off-by:
Paul Durrant <paul.durrant@citrix.com> Signed-off-by:
Igor Druzhinin <igor.druzhinin@citrix.com> Acked-by:
Wei Liu <wei.liu2@citrix.com> Signed-off-by:
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Igor Druzhinin authored
[ Upstream commit a2288d4e ] Occasionally, during the disconnection procedure on XenBus which includes hash cache deinitialization there might be some packets still in-flight on other processors. Handling of these packets includes hashing and hash cache population that finally results in hash cache data structure corruption. In order to avoid this we prevent hashing of those packets if there are no queues initialized. In that case RCU protection of queues guards the hash cache as well. Signed-off-by:
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Timur Celik authored
[ Upstream commit 71828b22 ] This patch moves setting of the current state into the loop. Otherwise the task may end up in a busy wait loop if none of the break conditions are met. Signed-off-by:
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Tung Nguyen authored
[ Upstream commit bfd07f3d ] When sending multicast messages via blocking socket, if sending link is congested (tsk->cong_link_cnt is set to 1), the sending thread will be put into sleeping state. However, tipc_sk_filter_rcv() is called under socket spin lock but tipc_wait_for_cond() is not. So, there is no guarantee that the setting of tsk->cong_link_cnt to 0 in tipc_sk_proto_rcv() in CPU-1 will be perceived by CPU-0. If that is the case, the sending thread in CPU-0 after being waken up, will continue to see tsk->cong_link_cnt as 1 and put the sending thread into sleeping state again. The sending thread will sleep forever. CPU-0 | CPU-1 tipc_wait_for_cond() | { | // condition_ = !tsk->cong_link_cnt | while ((rc_ = !(condition_))) { | ... | release_sock(sk_); | wait_woken(); | | if (!sock_owned_by_user(sk)) | tipc_sk_filter_rcv() | { | ... | tipc_sk_proto_rcv() | { | ... | tsk->cong_link_cnt--; | ... | sk->sk_write_space(sk); | ... | } | ... | } sched_annotate_sleep(); | lock_sock(sk_); | remove_wait_queue(); | } | } | This commit fixes it by adding memory barrier to tipc_sk_proto_rcv() and tipc_wait_for_cond(). Acked-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
Tung Nguyen <tung.q.nguyen@dektech.com.au> Signed-off-by:
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Eric Biggers authored
[ Upstream commit ff7b11aa ] Commit 9060cb71 ("net: crypto set sk to NULL when af_alg_release.") fixed a use-after-free in sockfs_setattr() when an AF_ALG socket is closed concurrently with fchownat(). However, it ignored that many other proto_ops::release() methods don't set sock->sk to NULL and therefore allow the same use-after-free: - base_sock_release - bnep_sock_release - cmtp_sock_release - data_sock_release - dn_release - hci_sock_release - hidp_sock_release - iucv_sock_release - l2cap_sock_release - llcp_sock_release - llc_ui_release - rawsock_release - rfcomm_sock_release - sco_sock_release - svc_release - vcc_release - x25_release Rather than fixing all these and relying on every socket type to get this right forever, just make __sock_release() set sock->sk to NULL itself after calling proto_ops::release(). Reproducer that produces the KASAN splat when any of these socket types are configured into the kernel: #include <pthread.h> #include <stdlib.h> #include <sys/socket.h> #include <unistd.h> pthread_t t; volatile int fd; void *close_thread(void *arg) { for (;;) { usleep(rand() % 100); close(fd); } } int main() { pthread_create(&t, NULL, close_thread, NULL); for (;;) { fd = socket(rand() % 50, rand() % 11, 0); fchownat(fd, "", 1000, 1000, 0x1000); close(fd); } } Fixes: 86741ec2 ("net: core: Add a UID field to struct sock.") Signed-off-by:
Eric Biggers <ebiggers@google.com> Acked-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Mao Wenan authored
[ Upstream commit 07f12b26 ] If register_netdev() is failed to register sitn->fb_tunnel_dev, it will go to err_reg_dev and forget to free netdev(sitn->fb_tunnel_dev). BUG: memory leak unreferenced object 0xffff888378daad00 (size 512): comm "syz-executor.1", pid 4006, jiffies 4295121142 (age 16.115s) hex dump (first 32 bytes): 00 e6 ed c0 83 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d6dcb63e>] kvmalloc include/linux/mm.h:577 [inline] [<00000000d6dcb63e>] kvzalloc include/linux/mm.h:585 [inline] [<00000000d6dcb63e>] netif_alloc_netdev_queues net/core/dev.c:8380 [inline] [<00000000d6dcb63e>] alloc_netdev_mqs+0x600/0xcc0 net/core/dev.c:8970 [<00000000867e172f>] sit_init_net+0x295/0xa40 net/ipv6/sit.c:1848 [<00000000871019fa>] ops_init+0xad/0x3e0 net/core/net_namespace.c:129 [<00000000319507f6>] setup_net+0x2ba/0x690 net/core/net_namespace.c:314 [<0000000087db4f96>] copy_net_ns+0x1dc/0x330 net/core/net_namespace.c:437 [<0000000057efc651>] create_new_namespaces+0x382/0x730 kernel/nsproxy.c:107 [<00000000676f83de>] copy_namespaces+0x2ed/0x3d0 kernel/nsproxy.c:165 [<0000000030b74bac>] copy_process.part.27+0x231e/0x6db0 kernel/fork.c:1919 [<00000000fff78746>] copy_process kernel/fork.c:1713 [inline] [<00000000fff78746>] _do_fork+0x1bc/0xe90 kernel/fork.c:2224 [<000000001c2e0d1c>] do_syscall_64+0xc8/0x580 arch/x86/entry/common.c:290 [<00000000ec48bd44>] entry_SYSCALL_64_after_hwframe+0x49/0xbe [<0000000039acff8a>] 0xffffffffffffffff Signed-off-by:
Mao Wenan <maowenan@huawei.com> Signed-off-by:
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Heiner Kallweit authored
[ Upstream commit d25ed413 ] When debugging an issue I found implausible values in state->pause. Reason in that state->pause isn't initialized and later only single bits are changed. Also the struct itself isn't initialized in phylink_resolve(). So better initialize state->pause and other not yet initialized fields. v2: - use right function name in subject v3: - initialize additional fields Fixes: 9525ae83 ("phylink: add phylink infrastructure") Signed-off-by:
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Rajasingh Thavamani authored
[ Upstream commit 232ba3a5 ] With Micrel KSZ8061 PHY, the link may occasionally not come up after Ethernet cable connect. The vendor's (Microchip, former Micrel) errata sheet 80000688A.pdf descripes the problem and possible workarounds in detail, see below. The batch implements workaround 1, which permanently fixes the issue. DESCRIPTION Link-up may not occur properly when the Ethernet cable is initially connected. This issue occurs more commonly when the cable is connected slowly, but it may occur any time a cable is connected. This issue occurs in the auto-negotiation circuit, and will not occur if auto-negotiation is disabled (which requires that the two link partners be set to the same speed and duplex). END USER IMPLICATIONS When this issue occurs, link is not established. Subsequent cable plug/unplaug cycle will not correct the issue. WORk AROUND There are four approaches to work around this issue: 1. This issue can be prevented by setting bit 15 in MMD device address 1, register 2, prior to connecting the cable or prior to setting the Restart Auto-negotiation bit in register 0h. The MMD registers are accessed via the indirect access registers Dh and Eh, or via the Micrel EthUtil utility as shown here: . if using the EthUtil utility (usually with a Micrel KSZ8061 Evaluation Board), type the following commands: > address 1 > mmd 1 > iw 2 b61a . Alternatively, write the following registers to write to the indirect MMD register: Write register Dh, data 0001h Write register Eh, data 0002h Write register Dh, data 4001h Write register Eh, data B61Ah 2. The issue can be avoided by disabling auto-negotiation in the KSZ8061, either by the strapping option, or by clearing bit 12 in register 0h. Care must be taken to ensure that the KSZ8061 and the link partner will link with the same speed and duplex. Note that the KSZ8061 defaults to full-duplex when auto-negotiation is off, but other devices may default to half-duplex in the event of failed auto-negotiation. 3. The issue can be avoided by connecting the cable prior to powering-up or resetting the KSZ8061, and leaving it plugged in thereafter. 4. If the above measures are not taken and the problem occurs, link can be recovered by setting the Restart Auto-Negotiation bit in register 0h, or by resetting or power cycling the device. Reset may be either hardware reset or software reset (register 0h, bit 15). PLAN This errata will not be corrected in the future revision. Fixes: 7ab59dc1 ("drivers/net/phy/micrel_phy: Add support for new PHYs") Signed-off-by:
Alexander Onnasch <alexander.onnasch@landisgyr.com> Signed-off-by:
Rajasingh Thavamani <T.Rajasingh@landisgyr.com> Reviewed-by:
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YueHaibing authored
[ Upstream commit 58bdd544 ] KASAN report this: BUG: KASAN: null-ptr-deref in nfc_llcp_build_gb+0x37f/0x540 [nfc] Read of size 3 at addr 0000000000000000 by task syz-executor.0/5401 CPU: 0 PID: 5401 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #45 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xfa/0x1ce lib/dump_stack.c:113 kasan_report+0x171/0x18d mm/kasan/report.c:321 memcpy+0x1f/0x50 mm/kasan/common.c:130 nfc_llcp_build_gb+0x37f/0x540 [nfc] nfc_llcp_register_device+0x6eb/0xb50 [nfc] nfc_register_device+0x50/0x1d0 [nfc] nfcsim_device_new+0x394/0x67d [nfcsim] ? 0xffffffffc1080000 nfcsim_init+0x6b/0x1000 [nfcsim] do_one_initcall+0xfa/0x5ca init/main.c:887 do_init_module+0x204/0x5f6 kernel/module.c:3460 load_module+0x66b2/0x8570 kernel/module.c:3808 __do_sys_finit_module+0x238/0x2a0 kernel/module.c:3902 do_syscall_64+0x147/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x462e99 Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9cb79dcc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 RAX: ffffffffffffffda RBX: 000000000073bf00 RCX: 0000000000462e99 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 00007f9cb79dcc70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9cb79dd6bc R13: 00000000004bcefb R14: 00000000006f7030 R15: 0000000000000004 nfc_llcp_build_tlv will return NULL on fails, caller should check it, otherwise will trigger a NULL dereference. Reported-by:
Hulk Robot <hulkci@huawei.com> Fixes: eda21f16 ("NFC: Set MIU and RW values from CONNECT and CC LLCP frames") Fixes: d646960f ("NFC: Initial LLCP support") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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Sheng Lan authored
[ Upstream commit 5845f706 ] It can be reproduced by following steps: 1. virtio_net NIC is configured with gso/tso on 2. configure nginx as http server with an index file bigger than 1M bytes 3. use tc netem to produce duplicate packets and delay: tc qdisc add dev eth0 root netem delay 100ms 10ms 30% duplicate 90% 4. continually curl the nginx http server to get index file on client 5. BUG_ON is seen quickly [10258690.371129] kernel BUG at net/core/skbuff.c:4028! [10258690.371748] invalid opcode: 0000 [#1] SMP PTI [10258690.372094] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G W 5.0.0-rc6 #2 [10258690.372094] RSP: 0018:ffffa05797b43da0 EFLAGS: 00010202 [10258690.372094] RBP: 00000000000005ea R08: 0000000000000000 R09: 00000000000005ea [10258690.372094] R10: ffffa0579334d800 R11: 00000000000002c0 R12: 0000000000000002 [10258690.372094] R13: 0000000000000000 R14: ffffa05793122900 R15: ffffa0578f7cb028 [10258690.372094] FS: 0000000000000000(0000) GS:ffffa05797b40000(0000) knlGS:0000000000000000 [10258690.372094] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [10258690.372094] CR2: 00007f1a6dc00868 CR3: 000000001000e000 CR4: 00000000000006e0 [10258690.372094] Call Trace: [10258690.372094] <IRQ> [10258690.372094] skb_to_sgvec+0x11/0x40 [10258690.372094] start_xmit+0x38c/0x520 [virtio_net] [10258690.372094] dev_hard_start_xmit+0x9b/0x200 [10258690.372094] sch_direct_xmit+0xff/0x260 [10258690.372094] __qdisc_run+0x15e/0x4e0 [10258690.372094] net_tx_action+0x137/0x210 [10258690.372094] __do_softirq+0xd6/0x2a9 [10258690.372094] irq_exit+0xde/0xf0 [10258690.372094] smp_apic_timer_interrupt+0x74/0x140 [10258690.372094] apic_timer_interrupt+0xf/0x20 [10258690.372094] </IRQ> In __skb_to_sgvec(), the skb->len is not equal to the sum of the skb's linear data size and nonlinear data size, thus BUG_ON triggered. Because the skb is cloned and a part of nonlinear data is split off. Duplicate packet is cloned in netem_enqueue() and may be delayed some time in qdisc. When qdisc len reached the limit and returns NET_XMIT_DROP, the skb will be retransmit later in write queue. the skb will be fragmented by tso_fragment(), the limit size that depends on cwnd and mss decrease, the skb's nonlinear data will be split off. The length of the skb cloned by netem will not be updated. When we use virtio_net NIC and invoke skb_to_sgvec(), the BUG_ON trigger. To fix it, netem returns NET_XMIT_SUCCESS to upper stack when it clones a duplicate packet. Fixes: 35d889d1 ("sch_netem: fix skb leak in netem_enqueue()") Signed-off-by:
Sheng Lan <lansheng@huawei.com> Reported-by:
Qin Ji <jiqin.ji@huawei.com> Suggested-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
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Paul Moore authored
[ Upstream commit 5578de48 ] There are two array out-of-bounds memory accesses, one in cipso_v4_map_lvl_valid(), the other in netlbl_bitmap_walk(). Both errors are embarassingly simple, and the fixes are straightforward. As a FYI for anyone backporting this patch to kernels prior to v4.8, you'll want to apply the netlbl_bitmap_walk() patch to cipso_v4_bitmap_walk() as netlbl_bitmap_walk() doesn't exist before Linux v4.8. Reported-by:
Jann Horn <jannh@google.com> Fixes: 446fda4f ("[NetLabel]: CIPSOv4 engine") Fixes: 3faa8f98 ("netlabel: Move bitmap manipulation functions to the NetLabel core.") Signed-off-by:
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Andrew Lunn authored
[ Upstream commit 6e46e2d8 ] The switch maintains u64 counters for the number of octets sent and received. These are kept as two u32's which need to be combined. Fix the combing, which wrongly worked on u16's. Fixes: 80c4627b ("dsa: mv88x6xxx: Refactor getting a single statistic") Reported-by:
Chris Healy <Chris.Healy@zii.aero> Signed-off-by:
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Andrew Lunn authored
[ Upstream commit a6da21bb ] Despite what the datesheet says, the silicon implements the older way of snapshoting the statistics. Change the op. Reported-by: Chris.Healy@zii.aero Tested-by: Chris.Healy@zii.aero Fixes: 0ac64c39 ("net: dsa: mv88e6xxx: mv88e6161 uses mv88e6320 stats snapshot") Signed-off-by:
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Bryan Whitehead authored
[ Upstream commit 90490ef7 ] It has been observed that tx queue stalls while downloading from certain web sites (example www.speedtest.net) The cause has been tracked down to a corner case where dma descriptors where not setup properly. And there for a tx completion interrupt was not signaled. This fix corrects the problem by properly marking the end of a multi descriptor transmission. Fixes: 23f0703c ("lan743x: Add main source files for new lan743x driver") Signed-off-by:
Bryan Whitehead <Bryan.Whitehead@microchip.com> Signed-off-by:
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Hangbin Liu authored
[ Upstream commit 5e1a99ea ] For ip rules, we need to use 'ipproto ipv6-icmp' to match ICMPv6 headers. But for ip -6 route, currently we only support tcp, udp and icmp. Add ICMPv6 support so we can match ipv6-icmp rules for route lookup. v2: As David Ahern and Sabrina Dubroca suggested, Add an argument to rtm_getroute_parse_ip_proto() to handle ICMP/ICMPv6 with different family. Reported-by:
Jianlin Shi <jishi@redhat.com> Fixes: eacb9384 ("ipv6: support sport, dport and ip_proto in RTM_GETROUTE") Signed-off-by:
Hangbin Liu <liuhangbin@gmail.com> Signed-off-by:
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Haiyang Zhang authored
[ Upstream commit bf48648d ] Incoming packets may have IP header checksum verified by the host. They may not have IP header checksum computed after coalescing. This patch re-compute the checksum when necessary, otherwise the packets may be dropped, because Linux network stack always checks it. Signed-off-by:
Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by:
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Jiri Benc authored
[ Upstream commit cf1c9ccb ] When IPv6 is compiled but disabled at runtime, geneve_sock_add returns -EAFNOSUPPORT. For metadata based tunnels, this causes failure of the whole operation of bringing up the tunnel. Ignore failure of IPv6 socket creation for metadata based tunnels caused by IPv6 not being available. This is the same fix as what commit d074bf96 ("vxlan: correctly handle ipv6.disable module parameter") is doing for vxlan. Note there's also commit c0a47e44 ("geneve: should not call rt6_lookup() when ipv6 was disabled") which fixes a similar issue but for regular tunnels, while this patch is needed for metadata based tunnels. Signed-off-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
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Michael Chan authored
[ Upstream commit 2b3c6885 ] There have been reports of oversize UDP packets being sent to the driver to be transmitted, causing error conditions. The issue is likely caused by the dst of the SKB switching between 'lo' with 64K MTU and the hardware device with a smaller MTU. Patches are being proposed by Mahesh Bandewar <maheshb@google.com> to fix the issue. In the meantime, add a quick length check in the driver to prevent the error. The driver uses the TX packet size as index to look up an array to setup the TX BD. The array is large enough to support all MTU sizes supported by the driver. The oversize TX packet causes the driver to index beyond the array and put garbage values into the TX BD. Add a simple check to prevent this. Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Erik Hugne authored
[ Upstream commit 0e632089 ] Fix regression bug introduced in commit 365ad353 ("tipc: reduce risk of user starvation during link congestion") Only signal -EDESTADDRREQ for RDM/DGRAM if we don't have a cached sockaddr. Fixes: 365ad353 ("tipc: reduce risk of user starvation during link congestion") Signed-off-by:
Erik Hugne <erik.hugne@gmail.com> Signed-off-by:
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Ido Schimmel authored
[ Upstream commit 692c31bd ] When team is used in loadbalance mode a BPF filter can be used to provide a hash which will determine the Tx port. When the netdev is later unregistered the filter is not freed which results in memory leaks [1]. Fix by freeing the program and the corresponding filter when unregistering the netdev. [1] unreferenced object 0xffff8881dbc47cc8 (size 16): comm "teamd", pid 3068, jiffies 4294997779 (age 438.247s) hex dump (first 16 bytes): a3 00 6b 6b 6b 6b 6b 6b 88 a5 82 e1 81 88 ff ff ..kkkkkk........ backtrace: [<000000008a3b47e3>] team_nl_cmd_options_set+0x88f/0x11b0 [<00000000c4f4f27e>] genl_family_rcv_msg+0x78f/0x1080 [<00000000610ef838>] genl_rcv_msg+0xca/0x170 [<00000000a281df93>] netlink_rcv_skb+0x132/0x380 [<000000004d9448a2>] genl_rcv+0x29/0x40 [<000000000321b2f4>] netlink_unicast+0x4c0/0x690 [<000000008c25dffb>] netlink_sendmsg+0x929/0xe10 [<00000000068298c5>] sock_sendmsg+0xc8/0x110 [<0000000082a61ff0>] ___sys_sendmsg+0x77a/0x8f0 [<00000000663ae29d>] __sys_sendmsg+0xf7/0x250 [<0000000027c5f11a>] do_syscall_64+0x14d/0x610 [<000000006cfbc8d3>] entry_SYSCALL_64_after_hwframe+0x49/0xbe [<00000000e23197e2>] 0xffffffffffffffff unreferenced object 0xffff8881e182a588 (size 2048): comm "teamd", pid 3068, jiffies 4294997780 (age 438.247s) hex dump (first 32 bytes): 20 00 00 00 02 00 00 00 30 00 00 00 28 f0 ff ff .......0...(... 07 00 00 00 00 00 00 00 28 00 00 00 00 00 00 00 ........(....... backtrace: [<000000002daf01fb>] lb_bpf_func_set+0x45c/0x6d0 [<000000008a3b47e3>] team_nl_cmd_options_set+0x88f/0x11b0 [<00000000c4f4f27e>] genl_family_rcv_msg+0x78f/0x1080 [<00000000610ef838>] genl_rcv_msg+0xca/0x170 [<00000000a281df93>] netlink_rcv_skb+0x132/0x380 [<000000004d9448a2>] genl_rcv+0x29/0x40 [<000000000321b2f4>] netlink_unicast+0x4c0/0x690 [<000000008c25dffb>] netlink_sendmsg+0x929/0xe10 [<00000000068298c5>] sock_sendmsg+0xc8/0x110 [<0000000082a61ff0>] ___sys_sendmsg+0x77a/0x8f0 [<00000000663ae29d>] __sys_sendmsg+0xf7/0x250 [<0000000027c5f11a>] do_syscall_64+0x14d/0x610 [<000000006cfbc8d3>] entry_SYSCALL_64_after_hwframe+0x49/0xbe [<00000000e23197e2>] 0xffffffffffffffff Fixes: 01d7f30a ("team: add loadbalance mode") Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Reported-by:
Amit Cohen <amitc@mellanox.com> Acked-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Kai-Heng Feng authored
[ Upstream commit b33b7cd6 ] Some sky2 chips fire IRQ after S3, before the driver is fully resumed: [ 686.804877] do_IRQ: 1.37 No irq handler for vector This is likely a platform bug that device isn't fully quiesced during S3. Use MSI-X, maskable MSI or INTx can prevent this issue from happening. Since MSI-X and maskable MSI are not supported by this device, fallback to use INTx on affected platforms. BugLink: https://bugs.launchpad.net/bugs/1807259 BugLink: https://bugs.launchpad.net/bugs/1809843Signed-off-by:
Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by:
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Xin Long authored
[ Upstream commit 901efe12 ] The user msg is also copied to the abort packet when doing SCTP_ABORT in sctp_sendmsg_check_sflags(). When SCTP_SENDALL is set, iov_iter_revert() should have been called for sending abort on the next asoc with copying this msg. Otherwise, memcpy_from_msg() in sctp_make_abort_user() will fail and return error. Fixes: 49102805 ("sctp: add support for snd flag SCTP_SENDALL process in sendmsg") Reported-by:
Ying Xu <yinxu@redhat.com> Signed-off-by:
Xin Long <lucien.xin@gmail.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Kristian Evensen authored
[ Upstream commit 822e44b4 ] Quectel EG12 (module)/EM12 (M.2 card) is a Cat. 12 LTE modem. The modem behaves in the same way as the EP06, so the "set DTR"-quirk must be applied and the diagnostic-interface check performed. Since the diagnostic-check now applies to more modems, I have renamed the function from quectel_ep06_diag_detected() to quectel_diag_detected(). Signed-off-by:
Kristian Evensen <kristian.evensen@gmail.com> Acked-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
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YueHaibing authored
[ Upstream commit 895a5e96 ] syzkaller report this: BUG: memory leak unreferenced object 0xffff88837a71a500 (size 256): comm "syz-executor.2", pid 9770, jiffies 4297825125 (age 17.843s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 20 c0 ef 86 ff ff ff ff ........ ....... backtrace: [<00000000db12624b>] netdev_register_kobject+0x124/0x2e0 net/core/net-sysfs.c:1751 [<00000000dc49a994>] register_netdevice+0xcc1/0x1270 net/core/dev.c:8516 [<00000000e5f3fea0>] tun_set_iff drivers/net/tun.c:2649 [inline] [<00000000e5f3fea0>] __tun_chr_ioctl+0x2218/0x3d20 drivers/net/tun.c:2883 [<000000001b8ac127>] vfs_ioctl fs/ioctl.c:46 [inline] [<000000001b8ac127>] do_vfs_ioctl+0x1a5/0x10e0 fs/ioctl.c:690 [<0000000079b269f8>] ksys_ioctl+0x89/0xa0 fs/ioctl.c:705 [<00000000de649beb>] __do_sys_ioctl fs/ioctl.c:712 [inline] [<00000000de649beb>] __se_sys_ioctl fs/ioctl.c:710 [inline] [<00000000de649beb>] __x64_sys_ioctl+0x74/0xb0 fs/ioctl.c:710 [<000000007ebded1e>] do_syscall_64+0xc8/0x580 arch/x86/entry/common.c:290 [<00000000db315d36>] entry_SYSCALL_64_after_hwframe+0x49/0xbe [<00000000115be9bb>] 0xffffffffffffffff It should call kset_unregister to free 'dev->queues_kset' in error path of register_queue_kobjects, otherwise will cause a mem leak. Reported-by:
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