unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Linux kernel modifications for the Kernel Hacking exam
1009473 commits 7 branches 0 tags 3.3 GiB
C 97.6%
Assembly 1%
Shell 0.5%
Python 0.3%
Makefile 0.3%
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Xuan Zhuo ac31565c21 xsk: Fix for xp_aligned_validate_desc() when len == chunk_size 
When desc->len is equal to chunk_size, it is legal. But when the
xp_aligned_validate_desc() got chunk_end from desc->addr + desc->len
pointing to the next chunk during the check, it caused the check to
fail.

This problem was first introduced in bbff2f321a ("xsk: new descriptor
addressing scheme"). Later in 2b43470add ("xsk: Introduce AF_XDP buffer
allocation API") this piece of code was moved into the new function called
xp_aligned_validate_desc(). This function was then moved into xsk_queue.h
via 26062b185e ("xsk: Explicitly inline functions and move definitions").

Fixes: bbff2f321a ("xsk: new descriptor addressing scheme")
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/20210428094424.54435-1-xuanzhuo@linux.alibaba.com
2021-05-04 00:28:06 +02:00
arch Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
block SCSI misc on 20210428 2021-04-28 17:22:10 -07:00
certs certs: add 'x509_revocation_list' to gitignore 2021-04-26 10:48:07 -07:00
crypto for-5.13/drivers-2021-04-27 2021-04-28 14:39:37 -07:00
Documentation Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
drivers net: dsa: ksz: ksz8863_smi_probe: set proper return value for ksz_switch_alloc() 2021-04-29 15:54:35 -07:00
fs Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
include bpf: Fix leakage of uninitialized bpf stack under speculation 2021-05-03 11:56:23 +02:00
init Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
ipc fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
kernel bpf: Fix leakage of uninitialized bpf stack under speculation 2021-05-03 11:56:23 +02:00
lib Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
LICENSES LICENSES: Add the CC-BY-4.0 license 2020-12-08 10:33:27 -07:00
mm \n 2021-04-29 11:06:13 -07:00
net xsk: Fix for xp_aligned_validate_desc() when len == chunk_size 2021-05-04 00:28:06 +02:00
samples Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
scripts Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
security Networking changes for 5.13. 2021-04-29 11:57:23 -07:00
sound - Core Frameworks 2021-04-28 15:59:13 -07:00
tools libbpf: Fix signed overflow in ringbuf_process_ring 2021-05-03 09:54:12 -07:00
usr Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
virt KVM: x86/mmu: Consider the hva in mmu_notifier retry 2021-02-22 13:16:53 -05:00
.clang-format cxl for 5.12 2021-02-24 09:38:36 -08:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore clang-lto series for v5.12-rc1 2021-02-23 09:28:51 -08:00
.mailmap It's been a relatively busy cycle in docsland, though more than usually 2021-04-26 13:22:43 -07:00
COPYING
CREDITS MAINTAINERS: move Murali Karicheri to credits 2021-04-29 15:47:30 -07:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: move Murali Karicheri to credits 2021-04-29 15:47:30 -07:00
Makefile CFI on arm64 series for v5.13-rc1 2021-04-27 10:16:46 -07:00
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.