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| Filename | Latest commit message | Latest commit date |
|---|---|---|
d122ed6288
When tracing_err_log_open() calls seq_open(), allocated memory is not freed.
kmemleak report:
unreferenced object 0xffff92c0781d1100 (size 128):
comm "tail", pid 15116, jiffies 4295163855 (age 22.704s)
hex dump (first 32 bytes):
00 f0 08 e5 c0 92 ff ff 00 10 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000000d0687d5>] kmem_cache_alloc+0x11f/0x1e0
[<000000003e3039a8>] seq_open+0x2f/0x90
[<000000008dd36b7d>] tracing_err_log_open+0x67/0x140
[<000000005a431ae2>] do_dentry_open+0x1df/0x3a0
[<00000000a2910603>] vfs_open+0x2f/0x40
[<0000000038b0a383>] path_openat+0x2e8/0x1690
[<00000000fe025bda>] do_filp_open+0x9b/0x110
[<00000000483a5091>] do_sys_open+0x1ba/0x260
[<00000000c558b5fd>] __x64_sys_openat+0x20/0x30
[<000000006881ec07>] do_syscall_64+0x5a/0x130
[<00000000571c2e94>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fix this by calling seq_release() in tracing_err_log_fops.release().
Link: http://lkml.kernel.org/r/20190628105640.GA1863@DESKTOP
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.