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Filename Latest commit message Latest commit date
Yi Yang f53ab5a2bf ipmi_si: fix a memleak in try_smi_init() 
commit 6cf1a126de2992b4efe1c3c4d398f8de4aed6e3f upstream.

Kmemleak reported the following leak info in try_smi_init():

unreferenced object 0xffff00018ecf9400 (size 1024):
  comm "modprobe", pid 2707763, jiffies 4300851415 (age 773.308s)
  backtrace:
    [<000000004ca5b312>] __kmalloc+0x4b8/0x7b0
    [<00000000953b1072>] try_smi_init+0x148/0x5dc [ipmi_si]
    [<000000006460d325>] 0xffff800081b10148
    [<0000000039206ea5>] do_one_initcall+0x64/0x2a4
    [<00000000601399ce>] do_init_module+0x50/0x300
    [<000000003c12ba3c>] load_module+0x7a8/0x9e0
    [<00000000c246fffe>] __se_sys_init_module+0x104/0x180
    [<00000000eea99093>] __arm64_sys_init_module+0x24/0x30
    [<0000000021b1ef87>] el0_svc_common.constprop.0+0x94/0x250
    [<0000000070f4f8b7>] do_el0_svc+0x48/0xe0
    [<000000005a05337f>] el0_svc+0x24/0x3c
    [<000000005eb248d6>] el0_sync_handler+0x160/0x164
    [<0000000030a59039>] el0_sync+0x160/0x180

The problem was that when an error occurred before handlers registration
and after allocating `new_smi->si_sm`, the variable wouldn't be freed in
the error handling afterwards since `shutdown_smi()` hadn't been
registered yet. Fix it by adding a `kfree()` in the error handling path
in `try_smi_init()`.

Cc: stable@vger.kernel.org # 4.19+
Fixes: 7960f18a56 ("ipmi_si: Convert over to a shutdown handler")
Signed-off-by: Yi Yang <yiyang13@huawei.com>
Co-developed-by: GONG, Ruiqi <gongruiqi@huaweicloud.com>
Signed-off-by: GONG, Ruiqi <gongruiqi@huaweicloud.com>
Message-Id: <20230629123328.2402075-1-gongruiqi@huaweicloud.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-09-23 10:59:54 +02:00
arch um: Fix hostaudio build errors 2023-09-23 10:59:53 +02:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-21 15:44:08 +02:00
Documentation Documentation/sysctl: document page_lock_unfairness 2023-08-30 16:27:27 +02:00
drivers ipmi_si: fix a memleak in try_smi_init() 2023-09-23 10:59:54 +02:00
fs NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN 2023-09-23 10:59:48 +02:00
include scsi: core: Use 32-bit hostnum in scsi_host_lookup() 2023-09-23 10:59:51 +02:00
init x86/mm: Initialize text poking earlier 2023-08-08 19:56:36 +02:00
ipc
kernel tracing: Fix race issue between cpu buffer write and swap 2023-09-23 10:59:52 +02:00
lib radix tree: remove unused variable 2023-08-30 16:27:26 +02:00
LICENSES
mm tmpfs: verify {g,u}id mount options correctly 2023-09-23 10:59:40 +02:00
net skbuff: skb_segment, Call zero copy functions before using skbuff frags 2023-09-23 10:59:54 +02:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts modpost: fix off by one in is_executable_section() 2023-07-27 08:37:18 +02:00
security smackfs: Prevent underflow in smk_set_cipso() 2023-09-23 10:59:46 +02:00
sound ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl 2023-09-23 10:59:54 +02:00
tools selftests: mirror_gre_changes: Tighten up the TTL test match 2023-08-30 16:27:16 +02:00
usr
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS iio: stx104: Move to addac subdirectory 2023-08-30 16:27:12 +02:00
Makefile Linux 5.4.256 2023-09-02 09:19:19 +02:00
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.