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Linux kernel source tree
ec6a328b2e
* dropped bogus call to setup_udp_tunnel_sock() during cleanup, substituted by proper state unwind * fixed race condition between peer removal (by kernel space) and socket closing (by user space) * fixed sleep in atomic context along TCP RX error path * fixes for ovpn kselftests -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEmavcbPjUEuTeX8D8C3DlOqA41YcFAmg+17IACgkQC3DlOqA4 1YfGnQf7BCqweJAqPZs45DrMO/zu0mygbvzxI5x1VnBSQvtUfEEwgY3Mk9Y/8OxW +QxD9yYl8sf30ZzGTFFYtBq0XwvcP0Nlo4WFD7+2ufvFgojIAwCsF25of+hODGLZ 5KF83VYDAMvUmK7Rq4gGyi/HC7+rWNhShfoXBh6nfQjNa75NWwIwp8wEsTMovq2Y DiH6VzCjkUgnRjJYG5g/D6n0pHnbUkrAPi3AT+aB8PX9sikrTZhBWX4mmY8n6Xlo KT83ByzJqc5svnbsQEGRuhXbyuKipBhcVmOohmulBB/uhXUZHDcem9L0wp1hR2SB y/lZQxt9bNdEXfh0J7r5QxI2vkZgZQ== =Y6+P -----END PGP SIGNATURE----- Merge tag 'ovpn-net-20250603' of https://github.com/OpenVPN/ovpn-net-next Antonio Quartulli says: ==================== In this batch you can find the following bug fixes: Patch 1: when releasing a UDP socket we were wrongly invoking setup_udp_tunnel_sock() with an empty config. This was not properly shutting down the UDP encap state. With this patch we simply undo what was done during setup. Patch 2: ovpn was holding a reference to a 'struct socket' without increasing its reference counter. This was intended and worked as expected until we hit a race condition where user space tries to close the socket while kernel space is also releasing it. In this case the (struct socket *)->sk member would disappear under our feet leading to a null-ptr-deref. This patch fixes this issue by having struct ovpn_socket hold a reference directly to the sk member while also increasing its reference counter. Patch 3: in case of errors along the TCP RX path (softirq) we want to immediately delete the peer, but this operation may sleep. With this patch we move the peer deletion to a scheduled worker. Patch 4 and 5 are instead fixing minor issues in the ovpn kselftests. * tag 'ovpn-net-20250603' of https://github.com/OpenVPN/ovpn-net-next: selftest/net/ovpn: fix missing file selftest/net/ovpn: fix TCP socket creation ovpn: avoid sleep in atomic context in TCP RX error path ovpn: ensure sk is still valid during cleanup ovpn: properly deconfigure UDP-tunnel ==================== Link: https://patch.msgid.link/20250603111110.4575-1-antonio@openvpn.net/ Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
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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 reStructuredText 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.