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  1. 26 6月, 2020 27 次提交
  3. 25 6月, 2020 3 次提交
  5. 24 6月, 2020 4 次提交
    • T
      ALSA: usb-audio: Fix OOB access of mixer element list · 220345e9
      由 Takashi Iwai 提交于 
      The USB-audio mixer code holds a linked list of usb_mixer_elem_list,
and several operations are performed for each mixer element.  A few of
them (snd_usb_mixer_notify_id() and snd_usb_mixer_interrupt_v2())
assume each mixer element being a usb_mixer_elem_info object that is a
subclass of usb_mixer_elem_list, cast via container_of() and access it
members.  This may result in an out-of-bound access when a
non-standard list element has been added, as spotted by syzkaller
recently.

This patch adds a new field, is_std_info, in usb_mixer_elem_list to
indicate that the element is the usb_mixer_elem_info type or not, and
skip the access to such an element if needed.

Reported-by: syzbot+fb14314433463ad51625@syzkaller.appspotmail.com
Reported-by: syzbot+2405ca3401e943c538b5@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200624122340.9615-1-tiwai@suse.deSigned-off-by: NTakashi Iwai <tiwai@suse.de>
      220345e9
    • G
      erofs: fix partially uninitialized misuse in z_erofs_onlinepage_fixup · 3c597282
      由 Gao Xiang 提交于 
      Hongyu reported "id != index" in z_erofs_onlinepage_fixup() with
specific aarch64 environment easily, which wasn't shown before.

After digging into that, I found that high 32 bits of page->private
was set to 0xaaaaaaaa rather than 0 (due to z_erofs_onlinepage_init
behavior with specific compiler options). Actually we only use low
32 bits to keep the page information since page->private is only 4
bytes on most 32-bit platforms. However z_erofs_onlinepage_fixup()
uses the upper 32 bits by mistake.

Let's fix it now.
Reported-and-tested-by: NHongyu Jin <hongyu.jin@unisoc.com>
Fixes: 3883a79a ("staging: erofs: introduce VLE decompression support")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: NChao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20200618234349.22553-1-hsiangkao@aol.comSigned-off-by: NGao Xiang <hsiangkao@redhat.com>
      3c597282
    • L
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 26e122e9
      由 Linus Torvalds 提交于 
      Pull kvm fixes from Paolo Bonzini:
 "All bugfixes except for a couple cleanup patches"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: Remove vcpu_vmx's defunct copy of host_pkru
  KVM: x86: allow TSC to differ by NTP correction bounds without TSC scaling
  KVM: X86: Fix MSR range of APIC registers in X2APIC mode
  KVM: VMX: Stop context switching MSR_IA32_UMWAIT_CONTROL
  KVM: nVMX: Plumb L2 GPA through to PML emulation
  KVM: x86/mmu: Avoid mixing gpa_t with gfn_t in walk_addr_generic()
  KVM: LAPIC: ensure APIC map is up to date on concurrent update requests
  kvm: lapic: fix broken vcpu hotplug
  Revert "KVM: VMX: Micro-optimize vmexit time when not exposing PMU"
  KVM: VMX: Add helpers to identify interrupt type from intr_info
  kvm/svm: disable KCSAN for svm_vcpu_run()
  KVM: MIPS: Fix a build error for !CPU_LOONGSON64
      26e122e9
    • L
      Merge tag 'for-5.8-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 3e08a952
      由 Linus Torvalds 提交于 
      Pull btrfs fixes from David Sterba:
 "A number of fixes, located in two areas, one performance fix and one
  fixup for better integration with another patchset.

   - bug fixes in nowait aio:
       - fix snapshot creation hang after nowait-aio was used
       - fix failure to write to prealloc extent past EOF
       - don't block when extent range is locked

   - block group fixes:
       - relocation failure when scrub runs in parallel
       - refcount fix when removing fails
       - fix race between removal and creation
       - space accounting fixes

   - reinstante fast path check for log tree at unlink time, fixes
     performance drop up to 30% in REAIM

   - kzfree/kfree fixup to ease treewide patchset renaming kzfree"

* tag 'for-5.8-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: use kfree() in btrfs_ioctl_get_subvol_info()
  btrfs: fix RWF_NOWAIT writes blocking on extent locks and waiting for IO
  btrfs: fix RWF_NOWAIT write not failling when we need to cow
  btrfs: fix failure of RWF_NOWAIT write into prealloc extent beyond eof
  btrfs: fix hang on snapshot creation after RWF_NOWAIT write
  btrfs: check if a log root exists before locking the log_mutex on unlink
  btrfs: fix bytes_may_use underflow when running balance and scrub in parallel
  btrfs: fix data block group relocation failure due to concurrent scrub
  btrfs: fix race between block group removal and block group creation
  btrfs: fix a block group ref counter leak after failure to remove block group
      3e08a952
  7. 23 6月, 2020 6 次提交