linux/tools/testing, branch v5.12

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2021-04-16T22:48:08Z

Daniel Borkmann says: ==================== pull-request: bpf 2021-04-17 The following pull-request contains BPF updates for your *net* tree. We've added 10 non-merge commits during the last 9 day(s) which contain a total of 8 files changed, 175 insertions(+), 111 deletions(-). The main changes are: 1) Fix a potential NULL pointer dereference in libbpf's xsk umem handling, from Ciara Loftus. 2) Mitigate a speculative oob read of up to map value size by tightening the masking window, from Daniel Borkmann. ==================== Signed-off-by: David S. Miller

bpf: Update selftests to reflect new error states

2021-04-16T21:52:15Z

Update various selftest error messages: * The 'Rx tried to sub from different maps, paths, or prohibited types' is reworked into more specific/differentiated error messages for better guidance. * The change into 'value -4294967168 makes map_value pointer be out of bounds' is due to moving the mixed bounds check into the speculation handling and thus occuring slightly later than above mentioned sanity check. * The change into 'math between map_value pointer and register with unbounded min value' is similarly due to register sanity check coming before the mixed bounds check. * The case of 'map access: known scalar += value_ptr from different maps' now loads fine given masks are the same from the different paths (despite max map value size being different). Signed-off-by: Daniel Borkmann Reviewed-by: John Fastabend Acked-by: Alexei Starovoitov

Merge tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-04-09T22:26:51Z

Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.12-rc7, including fixes from can, ipsec, mac80211, wireless, and bpf trees. No scary regressions here or in the works, but small fixes for 5.12 changes keep coming. Current release - regressions: - virtio: do not pull payload in skb->head - virtio: ensure mac header is set in virtio_net_hdr_to_skb() - Revert "net: correct sk_acceptq_is_full()" - mptcp: revert "mptcp: provide subflow aware release function" - ethernet: lan743x: fix ethernet frame cutoff issue - dsa: fix type was not set for devlink port - ethtool: remove link_mode param and derive link params from driver - sched: htb: fix null pointer dereference on a null new_q - wireless: iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd() - wireless: iwlwifi: fw: fix notification wait locking - wireless: brcmfmac: p2p: Fix deadlock introduced by avoiding the rtnl dependency Current release - new code bugs: - napi: fix hangup on napi_disable for threaded napi - bpf: take module reference for trampoline in module - wireless: mt76: mt7921: fix airtime reporting and related tx hangs - wireless: iwlwifi: mvm: rfi: don't lock mvm->mutex when sending config command Previous releases - regressions: - rfkill: revert back to old userspace API by default - nfc: fix infinite loop, refcount & memory leaks in LLCP sockets - let skb_orphan_partial wake-up waiters - xfrm/compat: Cleanup WARN()s that can be user-triggered - vxlan, geneve: do not modify the shared tunnel info when PMTU triggers an ICMP reply - can: fix msg_namelen values depending on CAN_REQUIRED_SIZE - can: uapi: mark union inside struct can_frame packed - sched: cls: fix action overwrite reference counting - sched: cls: fix err handler in tcf_action_init() - ethernet: mlxsw: fix ECN marking in tunnel decapsulation - ethernet: nfp: Fix a use after free in nfp_bpf_ctrl_msg_rx - ethernet: i40e: fix receiving of single packets in xsk zero-copy mode - ethernet: cxgb4: avoid collecting SGE_QBASE regs during traffic Previous releases - always broken: - bpf: Refuse non-O_RDWR flags in BPF_OBJ_GET - bpf: Refcount task stack in bpf_get_task_stack - bpf, x86: Validate computation of branch displacements - ieee802154: fix many similar syzbot-found bugs - fix NULL dereferences in netlink attribute handling - reject unsupported operations on monitor interfaces - fix error handling in llsec_key_alloc() - xfrm: make ipv4 pmtu check honor ip header df - xfrm: make hash generation lock per network namespace - xfrm: esp: delete NETIF_F_SCTP_CRC bit from features for esp offload - ethtool: fix incorrect datatype in set_eee ops - xdp: fix xdp_return_frame() kernel BUG throw for page_pool memory model - openvswitch: fix send of uninitialized stack memory in ct limit reply Misc: - udp: add get handling for UDP_GRO sockopt" * tag 'net-5.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (182 commits) net: fix hangup on napi_disable for threaded napi net: hns3: Trivial spell fix in hns3 driver lan743x: fix ethernet frame cutoff issue net: ipv6: check for validity before dereferencing cfg->fc_nlinfo.nlh net: dsa: lantiq_gswip: Configure all remaining GSWIP_MII_CFG bits net: dsa: lantiq_gswip: Don't use PHY auto polling net: sched: sch_teql: fix null-pointer dereference ipv6: report errors for iftoken via netlink extack net: sched: fix err handler in tcf_action_init() net: sched: fix action overwrite reference counting Revert "net: sched: bump refcount for new action in ACT replace mode" ice: fix memory leak of aRFS after resuming from suspend i40e: Fix sparse warning: missing error code 'err' i40e: Fix sparse error: 'vsi->netdev' could be null i40e: Fix sparse error: uninitialized symbol 'ring' i40e: Fix sparse errors in i40e_txrx.c i40e: Fix parameters in aq_get_phy_register() nl80211: fix beacon head validation bpf, x86: Validate computation of branch displacements for x86-32 bpf, x86: Validate computation of branch displacements for x86-64 ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2021-04-02T18:00:46Z

Alexei Starovoitov says: ==================== pull-request: bpf 2021-04-01 The following pull-request contains BPF updates for your *net* tree. We've added 11 non-merge commits during the last 8 day(s) which contain a total of 10 files changed, 151 insertions(+), 26 deletions(-). The main changes are: 1) xsk creation fixes, from Ciara. 2) bpf_get_task_stack fix, from Dave. 3) trampoline in modules fix, from Jiri. 4) bpf_obj_get fix for links and progs, from Lorenz. 5) struct_ops progs must be gpl compatible fix, from Toke. ==================== Signed-off-by: David S. Miller

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-04-01T19:42:55Z

Pull kvm fixes from Paolo Bonzini: "It's a bit larger than I (and probably you) would like by the time we get to -rc6, but perhaps not entirely unexpected since the changes in the last merge window were larger than usual. x86: - Fixes for missing TLB flushes with TDP MMU - Fixes for race conditions in nested SVM - Fixes for lockdep splat with Xen emulation - Fix for kvmclock underflow - Fix srcdir != builddir builds - Other small cleanups ARM: - Fix GICv3 MMIO compatibility probing - Prevent guests from using the ARMv8.4 self-hosted tracing extension" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: selftests: kvm: Check that TSC page value is small after KVM_SET_CLOCK(0) KVM: x86: Prevent 'hv_clock->system_time' from going negative in kvm_guest_time_update() KVM: x86: disable interrupts while pvclock_gtod_sync_lock is taken KVM: x86: reduce pvclock_gtod_sync_lock critical sections KVM: SVM: ensure that EFER.SVME is set when running nested guest or on nested vmexit KVM: SVM: load control fields from VMCB12 before checking them KVM: x86/mmu: Don't allow TDP MMU to yield when recovering NX pages KVM: x86/mmu: Ensure TLBs are flushed for TDP MMU during NX zapping KVM: x86/mmu: Ensure TLBs are flushed when yielding during GFN range zap KVM: make: Fix out-of-source module builds selftests: kvm: make hardware_disable_test less verbose KVM: x86/vPMU: Forbid writing to MSR_F15H_PERF MSRs when guest doesn't have X86_FEATURE_PERFCTR_CORE KVM: x86: remove unused declaration of kvm_write_tsc() KVM: clean up the unused argument tools/kvm_stat: Add restart delay KVM: arm64: Fix CPU interface MMIO compatibility detection KVM: arm64: Disable guest access to trace filter controls KVM: arm64: Hide system instruction access to Trace registers

idr test suite: Improve reporting from idr_find_test_1

2021-04-01T11:50:42Z

Instead of just reporting an assertion failure, report enough information that we can start diagnosing exactly went wrong. Signed-off-by: Matthew Wilcox (Oracle)

idr test suite: Create anchor before launching throbber

2021-04-01T11:50:19Z

The throbber could race with creation of the anchor entry and cause the IDR to have zero entries in it, which would cause the test to fail. Signed-off-by: Matthew Wilcox (Oracle)

idr test suite: Take RCU read lock in idr_find_test_1

2021-04-01T11:44:48Z

When run on a single CPU, this test would frequently access already-freed memory. Due to timing, this bug never showed up on multi-CPU tests. Reported-by: Chris von Recklinghausen Signed-off-by: Matthew Wilcox (Oracle)

radix tree test suite: Register the main thread with the RCU library

2021-04-01T11:41:30Z

Several test runners register individual worker threads with the RCU library, but neglect to register the main thread, which can lead to objects being freed while the main thread is in what appears to be an RCU critical section. Reported-by: Chris von Recklinghausen Signed-off-by: Matthew Wilcox (Oracle)

selftests: kvm: Check that TSC page value is small after KVM_SET_CLOCK(0)

2021-04-01T09:14:19Z

Add a test for the issue when KVM_SET_CLOCK(0) call could cause TSC page value to go very big because of a signedness issue around hv_clock->system_time. Signed-off-by: Vitaly Kuznetsov Message-Id: <20210326155551.17446-3-vkuznets@redhat.com> Signed-off-by: Paolo Bonzini