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Filename Latest commit message Latest commit date
Jakub Kicinski 5eac00ef2a net: tun: avoid disabling NAPI twice
commit ff1fa2081d173b01cebe2fbf0a2d0f1cee9ce4b5 upstream.

Eric reports that syzbot made short work out of my speculative
fix. Indeed when queue gets detached its tfile->tun remains,
so we would try to stop NAPI twice with a detach(), close()
sequence.

Alternative fix would be to move tun_napi_disable() to
tun_detach_all() and let the NAPI run after the queue
has been detached.

Fixes: a8fc8cb5692a ("net: tun: stop NAPI when detaching queues")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220629181911.372047-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-07 17:36:50 +02:00
arch s390: remove unneeded 'select BUILD_BIN2C' 2022-07-07 17:36:49 +02:00
block
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto crypto: drbg - make reseeding from get_random_bytes() synchronous 2022-06-22 14:11:18 +02:00
Documentation iio: adc: vf610: fix conversion mode sysfs node name 2022-06-29 08:58:47 +02:00
drivers net: tun: avoid disabling NAPI twice 2022-07-07 17:36:50 +02:00
fs afs: Fix dynamic root getattr 2022-06-29 08:58:46 +02:00
include linux/dim: Fix divide by 0 in RDMA DIM 2022-07-07 17:36:49 +02:00
init random: handle latent entropy and command line from random_init() 2022-06-22 14:11:17 +02:00
ipc
kernel kexec_file: drop weak attribute from arch_kexec_apply_relocations[_add] 2022-07-02 16:28:50 +02:00
lib
LICENSES
mm random: move randomize_page() into mm where it belongs 2022-06-22 14:11:17 +02:00
net net/sched: act_api: Notify user space if any actions were flushed before error 2022-07-07 17:36:50 +02:00
samples
scripts modpost: fix section mismatch check for exported init/exit sections 2022-06-29 08:58:49 +02:00
security
sound ALSA: hda/realtek: Add quirk for Clevo PD70PNT 2022-06-29 08:58:44 +02:00
tools selftests/net: pass ipv6_args to udpgso_bench's IPv6 TCP test 2022-07-07 17:36:49 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.203 2022-07-02 16:28:53 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.