Björn Töpel 044175a067 xsk: fix umem memory leak on cleanup ...

When the umem is cleaned up, the task that created it might already be
gone. If the task was gone, the xdp_umem_release function did not free
the pages member of struct xdp_umem.

It turned out that the task lookup was not needed at all; The code was
a left-over when we moved from task accounting to user accounting [1].

This patch fixes the memory leak by removing the task lookup logic
completely.

[1] https://lore.kernel.org/netdev/20180131135356.19134-3-bjorn.topel@gmail.com/

Link: https://lore.kernel.org/netdev/c1cb2ca8-6a14-3980-8672-f3de0bb38dfd@suse.cz/
Fixes: c0c77d8fb7 ("xsk: add user memory registration support sockopt")
Reported-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

2019-03-16 01:27:51 +01:00

..

acpi

Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-12-26 17:03:51 -08:00

asm-generic

get rid of legacy 'get_ds()' function

2019-03-04 10:50:14 -08:00

clocksource

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2018-04-05 21:21:08 -07:00

crypto

crypto: export arc4 defines

2019-02-15 13:21:55 +08:00

drm

Merge tag 'drm-intel-fixes-2019-01-11' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

2019-01-11 10:26:21 +01:00

dt-bindings

Merge tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2019-03-05 11:28:25 -08:00

keys

KEYS: user: Align the payload buffer

2019-02-22 10:11:19 -08:00

kvm

KVM: arm/arm64: vgic: Make vgic_cpu->ap_list_lock a raw_spinlock

2019-01-24 15:09:09 +01:00

linux

bpf: Fix bpf_tcp_sock and bpf_sk_fullsock issue related to bpf_sk_release

2019-03-13 12:04:35 -07:00

math-emu

…

media

Merge tag 'media/v4.20-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2018-12-25 13:11:30 -08:00

memory

…

misc

Revert "cxl: Allow a default context to be associated with an external pci_dev"

2018-07-02 23:54:33 +10:00

net

xsk: fix umem memory leak on cleanup

2019-03-16 01:27:51 +01:00

pcmcia

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ras

PCI/AER: Add TLP header information to tracepoint

2018-05-10 08:34:52 -05:00

rdma

RDMA/device: Expose ib_device_try_get(()

2019-01-21 14:33:08 -07:00

scsi

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

2018-12-28 14:57:10 -08:00

soc

soc: fsl: dpio: add a device_link at dpaa2_io_service_register

2019-01-11 15:06:54 -06:00

sound

ALSA: compress: Fix stop handling on compressed capture streams

2019-02-05 22:01:41 +01:00

target

scsi: target: consistently null-terminate t10_wwn strings

2018-12-07 21:54:33 -05:00

trace

rxrpc: Fix client call connect/disconnect race

2019-03-08 11:26:16 -08:00

uapi

bpf: add documentation for helpers bpf_spin_lock(), bpf_spin_unlock()

2019-03-14 14:03:21 -07:00

video

…

xen

arm64/xen: fix xen-swiotlb cache flushing

2019-01-23 22:14:56 +01:00