1. 20 Nov, 2020 35 commits
  2. 19 Nov, 2020 5 commits
    • Linus Torvalds's avatar
      Merge tag 'net-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 4d02da97
      Linus Torvalds authored
      Pull networking fixes from Jakub Kicinski:
       "Networking fixes for 5.10-rc5, including fixes from the WiFi
        (mac80211), can and bpf (including the strncpy_from_user fix).
      
        Current release - regressions:
      
         - mac80211: fix memory leak of filtered powersave frames
      
         - mac80211: free sta in sta_info_insert_finish() on errors to avoid
           sleeping in atomic context
      
         - netlabel: fix an uninitialized variable warning added in -rc4
      
        Previous release - regressions:
      
         - vsock: forward all packets to the host when no H2G is registered,
           un-breaking AWS Nitro Enclaves
      
         - net: Exempt multicast addresses from five-second neighbor lifetime
           requirement, decreasing the chances neighbor tables fill up
      
         - net/tls: fix corrupted data in recvmsg
      
         - qed: fix ILT configuration of SRC block
      
         - can: m_can: process interrupt only when not runtime suspended
      
        Previous release - always broken:
      
         - page_frag: Recover from memory pressure by not recycling pages
           allocating from the reserves
      
         - strncpy_from_user: Mask out bytes after NUL terminator
      
         - ip_tunnels: Set tunnel option flag only when tunnel metadata is
           present, always setting it confuses Open vSwitch
      
         - bpf, sockmap:
            - Fix partial copy_page_to_iter so progress can still be made
            - Fix socket memory accounting and obeying SO_RCVBUF
      
         - net: Have netpoll bring-up DSA management interface
      
         - net: bridge: add missing counters to ndo_get_stats64 callback
      
         - tcp: brr: only postpone PROBE_RTT if RTT is < current min_rtt
      
         - enetc: Workaround MDIO register access HW bug
      
         - net/ncsi: move netlink family registration to a subsystem init,
           instead of tying it to driver probe
      
         - net: ftgmac100: unregister NC-SI when removing driver to avoid
           crash
      
         - lan743x:
            - prevent interrupt storm on open
            - fix freeing skbs in the wrong context
      
         - net/mlx5e: Fix socket refcount leak on kTLS RX resync
      
         - net: dsa: mv88e6xxx: Avoid VLAN database corruption on 6097
      
         - fix 21 unset return codes and other mistakes on error paths, mostly
           detected by the Hulk Robot"
      
      * tag 'net-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (115 commits)
        fail_function: Remove a redundant mutex unlock
        selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL
        lib/strncpy_from_user.c: Mask out bytes after NUL terminator.
        net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid()
        net/smc: fix matching of existing link groups
        ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module
        libbpf: Fix VERSIONED_SYM_COUNT number parsing
        net/mlx4_core: Fix init_hca fields offset
        atm: nicstar: Unmap DMA on send error
        page_frag: Recover from memory pressure
        net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset
        mlxsw: core: Use variable timeout for EMAD retries
        mlxsw: Fix firmware flashing
        net: Have netpoll bring-up DSA management interface
        atl1e: fix error return code in atl1e_probe()
        atl1c: fix error return code in atl1c_probe()
        ah6: fix error return code in ah6_input()
        net: usb: qmi_wwan: Set DTR quirk for MR400
        can: m_can: process interrupt only when not runtime suspended
        can: flexcan: flexcan_chip_start(): fix erroneous flexcan_transceiver_enable() during bus-off recovery
        ...
      4d02da97
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma · 3be28e93
      Linus Torvalds authored
      Pull rdma fixes from Jason Gunthorpe:
       "The last two weeks have been quiet here, just the usual smattering of
        long standing bug fixes.
      
        A collection of error case bug fixes:
      
         - Improper nesting of spinlock types in cm
      
         - Missing error codes and kfree()
      
         - Ensure dma_virt_ops users have the right kconfig symbols to work
           properly
      
         - Compilation failure of tools/testing"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
        tools/testing/scatterlist: Fix test to compile and run
        IB/hfi1: Fix error return code in hfi1_init_dd()
        RMDA/sw: Don't allow drivers using dma_virt_ops on highmem configs
        RDMA/pvrdma: Fix missing kfree() in pvrdma_register_device()
        RDMA/cm: Make the local_id_table xarray non-irq
      3be28e93
    • Jakub Kicinski's avatar
      Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · e6ea60ba
      Jakub Kicinski authored
      Alexei Starovoitov says:
      
      ====================
      1) libbpf should not attempt to load unused subprogs, from Andrii.
      
      2) Make strncpy_from_user() mask out bytes after NUL terminator, from Daniel.
      
      3) Relax return code check for subprograms in the BPF verifier, from Dmitrii.
      
      4) Fix several sockmap issues, from John.
      
      * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
        fail_function: Remove a redundant mutex unlock
        selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL
        lib/strncpy_from_user.c: Mask out bytes after NUL terminator.
        libbpf: Fix VERSIONED_SYM_COUNT number parsing
        bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list
        bpf, sockmap: Handle memory acct if skb_verdict prog redirects to self
        bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self
        bpf, sockmap: Use truesize with sk_rmem_schedule()
        bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect
        bpf, sockmap: Fix partial copy_page_to_iter so progress can still be made
        selftests/bpf: Fix error return code in run_getsockopt_test()
        bpf: Relax return code check for subprograms
        tools, bpftool: Add missing close before bpftool net attach exit
        MAINTAINERS/bpf: Update Andrii's entry.
        selftests/bpf: Fix unused attribute usage in subprogs_unused test
        bpf: Fix unsigned 'datasec_id' compared with zero in check_pseudo_btf_id
        bpf: Fix passing zero to PTR_ERR() in bpf_btf_printf_prepare
        libbpf: Don't attempt to load unused subprog as an entry-point BPF program
      ====================
      
      Link: https://lore.kernel.org/r/20201119200721.288-1-alexei.starovoitov@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      e6ea60ba
    • Luo Meng's avatar
      fail_function: Remove a redundant mutex unlock · 2801a5da
      Luo Meng authored
      Fix a mutex_unlock() issue where before copy_from_user() is
      not called mutex_locked.
      
      Fixes: 4b1a29a7 ("error-injection: Support fault injection framework")
      Reported-by: default avatarHulk Robot <hulkci@huawei.com>
      Signed-off-by: default avatarLuo Meng <luomeng12@huawei.com>
      Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
      Link: https://lore.kernel.org/bpf/160570737118.263807.8358435412898356284.stgit@devnote2
      2801a5da
    • Alexei Starovoitov's avatar
      Merge branch 'Fix bpf_probe_read_user_str() overcopying' · 14d6d86c
      Alexei Starovoitov authored
      Daniel Xu says:
      
      ====================
      
      6ae08ae3 ("bpf: Add probe_read_{user, kernel} and probe_read_{user,
      kernel}_str helpers") introduced a subtle bug where
      bpf_probe_read_user_str() would potentially copy a few extra bytes after
      the NUL terminator.
      
      This issue is particularly nefarious when strings are used as map keys,
      as seemingly identical strings can occupy multiple entries in a map.
      
      This patchset fixes the issue and introduces a selftest to prevent
      future regressions.
      
      v6 -> v7:
      * Add comments
      
      v5 -> v6:
      * zero-pad up to sizeof(unsigned long) after NUL
      
      v4 -> v5:
      * don't read potentially uninitialized memory
      
      v3 -> v4:
      * directly pass userspace pointer to prog
      * test more strings of different length
      
      v2 -> v3:
      * set pid filter before attaching prog in selftest
      * use long instead of int as bpf_probe_read_user_str() retval
      * style changes
      
      v1 -> v2:
      * add Fixes: tag
      * add selftest
      ====================
      Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
      14d6d86c