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Filename Latest commit message Latest commit date
Quang Le 18f13f2a83 net/packet: fix a race in packet_set_ring() and packet_notifier() 
commit 01d3c8417b9c1b884a8a981a3b886da556512f36 upstream.

When packet_set_ring() releases po->bind_lock, another thread can
run packet_notifier() and process an NETDEV_UP event.

This race and the fix are both similar to that of commit 15fe076ede
("net/packet: fix a race in packet_bind() and packet_notifier()").

There too the packet_notifier NETDEV_UP event managed to run while a
po->bind_lock critical section had to be temporarily released. And
the fix was similarly to temporarily set po->num to zero to keep
the socket unhooked until the lock is retaken.

The po->bind_lock in packet_set_ring and packet_notifier precede the
introduction of git history.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Quang Le <quanglex97@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250801175423.2970334-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:21:23 +02:00
arch arch: powerpc: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX 2025-08-28 16:21:19 +02:00
block
certs
crypto
Documentation
drivers pptp: fix pptp_xmit() error path 2025-08-28 16:21:22 +02:00
fs smb: client: let recv_done() cleanup before notifying the callers. 2025-08-28 16:21:22 +02:00
include net: drop UFO packets in udp_rcv_segment() 2025-08-28 16:21:22 +02:00
init
ipc
kernel perf/core: Prevent VMA split of buffer mappings 2025-08-28 16:21:23 +02:00
lib
LICENSES
mm
net net/packet: fix a race in packet_set_ring() and packet_notifier() 2025-08-28 16:21:23 +02:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:21:19 +02:00
scripts
security
sound ASoC: ops: dynamically allocate struct snd_ctl_elem_value 2025-08-28 16:21:18 +02:00
tools perf tests bp_account: Fix leaked file descriptor 2025-08-28 16:21:20 +02:00
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README

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.