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- C 98.2%
- Assembly 1%
- Makefile 0.3%
- Shell 0.2%
- Python 0.1%
| Filename | Latest commit message | Latest commit date |
|---|---|---|
65f1a0d39c
If bus_register fails. On its error handling path, it has cleaned up
what it has done. There is no need to call bus_unregister again.
Otherwise, if bus_unregister is called, issues such as null-ptr-deref
will arise.
Syzkaller report this:
kobject_add_internal failed for memstick (error: -12 parent: bus)
BUG: KASAN: null-ptr-deref in sysfs_remove_file_ns+0x1b/0x40 fs/sysfs/file.c:467
Read of size 8 at addr 0000000000000078 by task syz-executor.0/4460
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xa9/0x10e lib/dump_stack.c:113
__kasan_report+0x171/0x18d mm/kasan/report.c:321
kasan_report+0xe/0x20 mm/kasan/common.c:614
sysfs_remove_file_ns+0x1b/0x40 fs/sysfs/file.c:467
sysfs_remove_file include/linux/sysfs.h:519 [inline]
bus_remove_file+0x6c/0x90 drivers/base/bus.c:145
remove_probe_files drivers/base/bus.c:599 [inline]
bus_unregister+0x6e/0x100 drivers/base/bus.c:916 ? 0xffffffffc1590000
memstick_init+0x7a/0x1000 [memstick]
do_one_initcall+0xb9/0x3b5 init/main.c:914
do_init_module+0xe0/0x330 kernel/module.c:3468
load_module+0x38eb/0x4270 kernel/module.c:3819
__do_sys_finit_module+0x162/0x190 kernel/module.c:3909
do_syscall_64+0x72/0x2a0 arch/x86/entry/common.c:298
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Fixes:
|
||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.