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Jinjie Ruan 7efb91501b kunit: Fix missed memory release in kunit_free_suite_set()
[ Upstream commit a6074cf0126b0bee51ab77a15930dc24a4d5db90 ]

modprobe cpumask_kunit and rmmod cpumask_kunit, kmemleak detect
a suspected memory leak as below.

If kunit_filter_suites() in kunit_module_init() succeeds, the
suite_set.start will not be NULL and the kunit_free_suite_set() in
kunit_module_exit() should free all the memory which has not
been freed. However the test_cases in suites is left out.

unreferenced object 0xffff54ac47e83200 (size 512):
  comm "modprobe", pid 592, jiffies 4294913238 (age 1367.612s)
  hex dump (first 32 bytes):
    84 13 1a f0 d3 b6 ff ff 30 68 1a f0 d3 b6 ff ff  ........0h......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000008dec63a2>] slab_post_alloc_hook+0xb8/0x368
    [<00000000ec280d8e>] __kmem_cache_alloc_node+0x174/0x290
    [<00000000896c7740>] __kmalloc+0x60/0x2c0
    [<000000007a50fa06>] kunit_filter_suites+0x254/0x5b8
    [<0000000078cc98e2>] kunit_module_notify+0xf4/0x240
    [<0000000033cea952>] notifier_call_chain+0x98/0x17c
    [<00000000973d05cc>] notifier_call_chain_robust+0x4c/0xa4
    [<000000005f95895f>] blocking_notifier_call_chain_robust+0x4c/0x74
    [<0000000048e36fa7>] load_module+0x1a2c/0x1c40
    [<0000000004eb8a91>] init_module_from_file+0x94/0xcc
    [<0000000037dbba28>] idempotent_init_module+0x184/0x278
    [<00000000161b75cb>] __arm64_sys_finit_module+0x68/0xa8
    [<000000006dc1669b>] invoke_syscall+0x44/0x100
    [<00000000fa87e304>] el0_svc_common.constprop.1+0x68/0xe0
    [<000000009d8ad866>] do_el0_svc+0x1c/0x28
    [<000000005b83c607>] el0_svc+0x3c/0xc4

Fixes: a127b154a8 ("kunit: tool: allow filtering test cases via glob")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Rae Moar <rmoar@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 11:52:02 +01:00
arch ARM: dts: qcom: mdm9615: populate vsdcc fixed regulator 2023-11-20 11:52:02 +01:00
block blk-throttle: check for overflow in calculate_bytes_allowed 2023-11-02 09:35:29 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: lrw,xts - Replace strlcpy with strscpy 2023-09-23 11:11:01 +02:00
Documentation dt-bindings: mmc: sdhci-msm: correct minimum number of clocks 2023-10-25 12:03:13 +02:00
drivers soc: qcom: llcc: Handle a second device without data corruption 2023-11-20 11:52:02 +01:00
fs pstore/platform: Add check for kstrdup 2023-11-20 11:51:50 +01:00
include arm64/arm: xen: enlighten: Fix KPTI checks 2023-11-20 11:52:00 +01:00
init sched/psi: Select KERNFS as needed 2023-09-13 09:42:28 +02:00
io_uring io_uring/kbuf: Allow the full buffer id space for provided buffers 2023-11-20 11:52:00 +01:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel bpf: Fix unnecessary -EBUSY from htab_lock_bucket 2023-11-20 11:51:55 +01:00
lib kunit: Fix missed memory release in kunit_free_suite_set() 2023-11-20 11:52:02 +01:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm vfs: fix readahead(2) on block devices 2023-11-20 11:51:50 +01:00
net ipv6: avoid atomic fragment on GSO packets 2023-11-20 11:51:55 +01:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples fprobe: Pass entry_data to handlers 2023-10-25 12:03:12 +02:00
scripts kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[] 2023-10-25 12:03:16 +02:00
security KEYS: trusted: Remove redundant static calls usage 2023-10-19 23:08:50 +02:00
sound ASoC: SOF: sof-pci-dev: Fix community key quirk detection 2023-11-08 14:11:05 +01:00
tools net: skb_find_text: Ignore patterns extending past 'to' 2023-11-20 11:51:54 +01:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt kvm/vfio: ensure kvg instance stays around in kvm_vfio_group_add() 2023-09-13 09:42:46 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS devlink: move code to a dedicated directory 2023-08-30 16:11:00 +02:00
Makefile Linux 6.1.62 2023-11-08 14:11:05 +01:00
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.