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| Filename | Latest commit message | Latest commit date |
|---|---|---|
0216234c2e
We release wrong pointer on error path in cpu_cache_level__read
function, leading to segfault:
(gdb) r record ls
Starting program: /root/perf/tools/perf/perf record ls
...
[ perf record: Woken up 1 times to write data ]
double free or corruption (out)
Thread 1 "perf" received signal SIGABRT, Aborted.
0x00007ffff7463798 in raise () from /lib64/power9/libc.so.6
(gdb) bt
#0 0x00007ffff7463798 in raise () from /lib64/power9/libc.so.6
#1 0x00007ffff7443bac in abort () from /lib64/power9/libc.so.6
#2 0x00007ffff74af8bc in __libc_message () from /lib64/power9/libc.so.6
#3 0x00007ffff74b92b8 in malloc_printerr () from /lib64/power9/libc.so.6
#4 0x00007ffff74bb874 in _int_free () from /lib64/power9/libc.so.6
#5 0x0000000010271260 in __zfree (ptr=0x7fffffffa0b0) at ../../lib/zalloc..
#6 0x0000000010139340 in cpu_cache_level__read (cache=0x7fffffffa090, cac..
#7 0x0000000010143c90 in build_caches (cntp=0x7fffffffa118, size=<optimiz..
...
Releasing the proper pointer.
Fixes:
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| 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.