linux

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-10 20:48:12 +00:00

No description

C 96.8%
Assembly 0.9%
Rust 0.7%
Shell 0.6%
Python 0.5%
Other 0.3%

Find a file

Masahiro Yamada 0c3e091319 modpost: remove incorrect code in do_eisa_entry() This function contains multiple bugs after the following commits: - `ac55182899` ("modpost: i2c aliases need no trailing wildcard") - `6543becf26` ("mod/file2alias: make modalias generation safe for cross compiling") Commit `ac55182899` inserted the following code to do_eisa_entry(): else strcat(alias, ""); This is incorrect because 'alias' is uninitialized. If it is not NULL-terminated, strcat() could cause a buffer overrun. Even if 'alias' happens to be zero-filled, it would output: MODULE_ALIAS(""); This would match anything. As a result, the module could be loaded by any unrelated uevent from an unrelated subsystem. Commit `ac55182899` introduced another bug. Prior to that commit, the conditional check was: if (eisa->sig[0]) This checked if the first character of eisa_device_id::sig was not '\0'. However, commit `ac55182899` changed it as follows: if (sig[0]) sig[0] is NOT the first character of the eisa_device_id::sig. The type of 'sig' is 'char ()[8]', meaning that the type of 'sig[0]' is 'char [8]' instead of 'char'. 'sig[0]' and 'symval' refer to the same address, which never becomes NULL. The correct conversion would have been: if ((sig)[0]) However, this if-conditional was meaningless because the earlier change in commit ac551828993e was incorrect. This commit removes the entire incorrect code, which should never have been executed. Fixes: `ac55182899` ("modpost: i2c aliases need no trailing wildcard") Fixes: `6543becf26` ("mod/file2alias: make modalias generation safe for cross compiling") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>		History 2024-11-28 08:11:56 +09:00
arch
block
certs
crypto
Documentation
drivers
fs
include
init
io_uring
ipc
kernel
lib
LICENSES
mm
net
rust
samples
scripts
security
sound
tools
usr
virt
.clang-format
.cocciconfig
.editorconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
.rustfmt.toml
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
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 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.