1. 27 May, 2020 2 commits
    • Linus Torvalds's avatar
      Merge branch 'for-5.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup · 3301f6ae
      Linus Torvalds authored
      Pull cgroup fixes from Tejun Heo:
      
       - Reverted stricter synchronization for cgroup recursive stats which
         was prepping it for event counter usage which never got merged. The
         change was causing performation regressions in some cases.
      
       - Restore bpf-based device-cgroup operation even when cgroup1 device
         cgroup is disabled.
      
       - An out-param init fix.
      
      * 'for-5.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
        device_cgroup: Cleanup cgroup eBPF device filter code
        xattr: fix uninitialized out-param
        Revert "cgroup: Add memory barriers to plug cgroup_rstat_updated() race window"
      3301f6ae
    • Linus Torvalds's avatar
      Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace · 006f38a1
      Linus Torvalds authored
      Pull execve fix from Eric Biederman:
       "While working on my exec cleanups I found a bug in exec that winds up
        miscomputing the ambient credentials during exec. Andy appears to have
        to been confused as to why credentials are computed for both the
        script and the interpreter
      
        From the original patch description:
      
         [3] Linux very confusingly processes both the script and the
             interpreter if applicable, for reasons that elude me. The results
             from thinking about a script's file capabilities and/or setuid
             bits are mostly discarded.
      
        The only value in struct cred that gets changed in cap_bprm_set_creds
        that I could find that might persist between the script and the
        interpreter was cap_ambient. Which is fixed with this trivial change"
      
      * 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
        exec: Always set cap_ambient in cap_bprm_set_creds
      006f38a1
  2. 26 May, 2020 2 commits
    • Eric W. Biederman's avatar
      exec: Always set cap_ambient in cap_bprm_set_creds · a4ae32c7
      Eric W. Biederman authored
      An invariant of cap_bprm_set_creds is that every field in the new cred
      structure that cap_bprm_set_creds might set, needs to be set every
      time to ensure the fields does not get a stale value.
      
      The field cap_ambient is not set every time cap_bprm_set_creds is
      called, which means that if there is a suid or sgid script with an
      interpreter that has neither the suid nor the sgid bits set the
      interpreter should be able to accept ambient credentials.
      Unfortuantely because cap_ambient is not reset to it's original value
      the interpreter can not accept ambient credentials.
      
      Given that the ambient capability set is expected to be controlled by
      the caller, I don't think this is particularly serious.  But it is
      definitely worth fixing so the code works correctly.
      
      I have tested to verify my reading of the code is correct and the
      interpreter of a sgid can receive ambient capabilities with this
      change and cannot receive ambient capabilities without this change.
      
      Cc: stable@vger.kernel.org
      Cc: Andy Lutomirski <luto@kernel.org>
      Fixes: 58319057 ("capabilities: ambient capabilities")
      Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
      a4ae32c7
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm · 444fc5cd
      Linus Torvalds authored
      Pull ARM fixes from Russell King:
      
       - correct value of decompressor tag size in header
      
       - fix DACR value when we have nested exceptions
      
       - fix a missing newline on a kernel message
      
       - fix mask for ptrace thumb breakpoint hook
      
      * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
        ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
        ARM: 8973/1: Add missing newline terminator to kernel message
        ARM: uaccess: fix DACR mismatch with nested exceptions
        ARM: uaccess: integrate uaccess_save and uaccess_restore
        ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
        ARM: 8970/1: decompressor: increase tag size
      444fc5cd
  3. 24 May, 2020 5 commits
    • Linus Torvalds's avatar
      Linux 5.7-rc7 · 9cb1fd0e
      Linus Torvalds authored
      9cb1fd0e
    • Linus Torvalds's avatar
      Merge tag 'efi-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 98790bba
      Linus Torvalds authored
      Pull EFI fixes from Thomas Gleixner:
       "A set of EFI fixes:
      
         - Don't return a garbage screen info when EFI framebuffer is not
           available
      
         - Make the early EFI console work properly with wider fonts instead
           of drawing garbage
      
         - Prevent a memory buffer leak in allocate_e820()
      
         - Print the firmware error record properly so it can be decoded by
           users
      
         - Fix a symbol clash in the host tool build which only happens with
           newer compilers.
      
         - Add a missing check for the event log version of TPM which caused
           boot failures on several Dell systems due to an attempt to decode
           SHA-1 format with the crypto agile algorithm"
      
      * tag 'efi-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tpm: check event log version before reading final events
        efi: Pull up arch-specific prototype efi_systab_show_arch()
        x86/boot: Mark global variables as static
        efi: cper: Add support for printing Firmware Error Record Reference
        efi/libstub/x86: Avoid EFI map buffer alloc in allocate_e820()
        efi/earlycon: Fix early printk for wider fonts
        efi/libstub: Avoid returning uninitialized data from setup_graphics()
      98790bba
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 667b6249
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "Two fixes for x86:
      
         - Unbreak stack dumps for inactive tasks by interpreting the special
           first frame left by __switch_to_asm() correctly.
      
           The recent change not to skip the first frame so ORC and frame
           unwinder behave in the same way caused all entries to be
           unreliable, i.e. prepended with '?'.
      
         - Use cpumask_available() instead of an implicit NULL check of a
           cpumask_var_t in mmio trace to prevent a Clang build warning"
      
      * tag 'x86-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/unwind/orc: Fix unwind_get_return_address_ptr() for inactive tasks
        x86/mmiotrace: Use cpumask_available() for cpumask_var_t variables
      667b6249
    • Linus Torvalds's avatar
      Merge tag 'sched-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9e61d12b
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
       "A set of fixes for the scheduler:
      
         - Fix handling of throttled parents in enqueue_task_fair() completely.
      
           The recent fix overlooked a corner case where the first iteration
           terminates due to an entity already being on the runqueue which
           makes the list management incomplete and later triggers the
           assertion which checks for completeness.
      
         - Fix a similar problem in unthrottle_cfs_rq().
      
         - Show the correct uclamp values in procfs which prints the effective
           value twice instead of requested and effective"
      
      * tag 'sched-urgent-2020-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/fair: Fix unthrottle_cfs_rq() for leaf_cfs_rq list
        sched/debug: Fix requested task uclamp values shown in procfs
        sched/fair: Fix enqueue_task_fair() warning some more
      9e61d12b
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · caffb99b
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix RCU warnings in ipv6 multicast router code, from Madhuparna
          Bhowmik.
      
       2) Nexthop attributes aren't being checked properly because of
          mis-initialized iterator, from David Ahern.
      
       3) Revert iop_idents_reserve() change as it caused performance
          regressions and was just working around what is really a UBSAN bug
          in the compiler. From Yuqi Jin.
      
       4) Read MAC address properly from ROM in bmac driver (double iteration
          proceeds past end of address array), from Jeremy Kerr.
      
       5) Add Microsoft Surface device IDs to r8152, from Marc Payne.
      
       6) Prevent reference to freed SKB in __netif_receive_skb_core(), from
          Boris Sukholitko.
      
       7) Fix ACK discard behavior in rxrpc, from David Howells.
      
       8) Preserve flow hash across packet scrubbing in wireguard, from Jason
          A. Donenfeld.
      
       9) Cap option length properly for SO_BINDTODEVICE in AX25, from Eric
          Dumazet.
      
      10) Fix encryption error checking in kTLS code, from Vadim Fedorenko.
      
      11) Missing BPF prog ref release in flow dissector, from Jakub Sitnicki.
      
      12) dst_cache must be used with BH disabled in tipc, from Eric Dumazet.
      
      13) Fix use after free in mlxsw driver, from Jiri Pirko.
      
      14) Order kTLS key destruction properly in mlx5 driver, from Tariq
          Toukan.
      
      15) Check devm_platform_ioremap_resource() return value properly in
          several drivers, from Tiezhu Yang.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (71 commits)
        net: smsc911x: Fix runtime PM imbalance on error
        net/mlx4_core: fix a memory leak bug.
        net: ethernet: ti: cpsw: fix ASSERT_RTNL() warning during suspend
        net: phy: mscc: fix initialization of the MACsec protocol mode
        net: stmmac: don't attach interface until resume finishes
        net: Fix return value about devm_platform_ioremap_resource()
        net/mlx5: Fix error flow in case of function_setup failure
        net/mlx5e: CT: Correctly get flow rule
        net/mlx5e: Update netdev txq on completions during closure
        net/mlx5: Annotate mutex destroy for root ns
        net/mlx5: Don't maintain a case of del_sw_func being null
        net/mlx5: Fix cleaning unmanaged flow tables
        net/mlx5: Fix memory leak in mlx5_events_init
        net/mlx5e: Fix inner tirs handling
        net/mlx5e: kTLS, Destroy key object after destroying the TIS
        net/mlx5e: Fix allowed tc redirect merged eswitch offload cases
        net/mlx5: Avoid processing commands before cmdif is ready
        net/mlx5: Fix a race when moving command interface to events mode
        net/mlx5: Add command entry handling completion
        rxrpc: Fix a memory leak in rxkad_verify_response()
        ...
      caffb99b
  4. 23 May, 2020 31 commits