Michael S. Tsirkin 9fb582b670 Revert "net: ptr_ring: otherwise safe empty checks can overrun array bounds" ...

This reverts commit bcecb4bbf8.

If we try to allocate an extra entry as the above commit did, and when
the requested size is UINT_MAX, addition overflows causing zero size to
be passed to kmalloc().

kmalloc then returns ZERO_SIZE_PTR with a subsequent crash.

Reported-by: syzbot+87678bcf753b44c39b67@syzkaller.appspotmail.com
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2018-01-29 12:02:54 -05:00

..

acpi

Merge branch 'acpi-ec' into acpi

2017-11-30 13:37:29 +01:00

asm-generic

error-injection: Add injectable error types

2018-01-12 17:33:38 -08:00

clocksource

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2017-11-15 10:56:56 -08:00

crypto

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2018-01-05 12:10:06 -08:00

drm

drm: rework delayed connector cleanup in connector_iter

2017-12-13 22:59:00 +01:00

dt-bindings

Merge tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux

2017-11-23 21:04:56 -10:00

keys

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kvm

KVM: arm/arm64: timer: Don't set irq as forwarded if no usable GIC

2017-12-18 10:53:23 +01:00

linux

Revert "net: ptr_ring: otherwise safe empty checks can overrun array bounds"

2018-01-29 12:02:54 -05:00

math-emu

…

media

Merge tag 'media/v4.15-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2017-11-15 20:30:12 -08:00

memory

…

misc

…

net

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2018-01-29 10:15:51 -05:00

pcmcia

…

ras

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rdma

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

2017-11-15 14:54:53 -08:00

scsi

scsi: libsas: align sata_device's rps_resp on a cacheline

2017-11-21 23:06:32 -05:00

soc

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2017-11-17 20:04:24 -08:00

sound

ALSA: hda - Fix yet remaining issue with vmaster 0dB initialization

2017-11-22 12:34:56 +01:00

target

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2017-11-24 19:19:20 -10:00

trace

net: tracepoint: exposing sk_faimily in tracepoint inet_sock_set_state

2018-01-08 14:32:45 -05:00

uapi

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

2018-01-28 21:22:46 -05:00

video

Merge tag 'fbdev-v4.15' of git://github.com/bzolnier/linux

2017-11-20 21:50:24 -10:00

xen

Merge tag 'for-linus-4.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

2017-12-22 12:30:10 -08:00