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Jinjie Ruan 281f65d29d net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule() 
Inject fault When select CONFIG_VCAP_KUNIT_TEST, the below memory leak
occurs. If kzalloc() for duprule succeeds, but the following
kmemdup() fails, the duprule, ckf and caf memory will be leaked. So kfree
them in the error path.

unreferenced object 0xffff122744c50600 (size 192):
  comm "kunit_try_catch", pid 346, jiffies 4294896122 (age 911.812s)
  hex dump (first 32 bytes):
    10 27 00 00 04 00 00 00 1e 00 00 00 2c 01 00 00  .'..........,...
    00 00 00 00 00 00 00 00 18 06 c5 44 27 12 ff ff  ...........D'...
  backtrace:
    [<00000000394b0db8>] __kmem_cache_alloc_node+0x274/0x2f8
    [<0000000001bedc67>] kmalloc_trace+0x38/0x88
    [<00000000b0612f98>] vcap_dup_rule+0x50/0x460
    [<000000005d2d3aca>] vcap_add_rule+0x8cc/0x1038
    [<00000000eef9d0f8>] test_vcap_xn_rule_creator.constprop.0.isra.0+0x238/0x494
    [<00000000cbda607b>] vcap_api_rule_remove_in_front_test+0x1ac/0x698
    [<00000000c8766299>] kunit_try_run_case+0xe0/0x20c
    [<00000000c4fe9186>] kunit_generic_run_threadfn_adapter+0x50/0x94
    [<00000000f6864acf>] kthread+0x2e8/0x374
    [<0000000022e639b3>] ret_from_fork+0x10/0x20

Fixes: 814e769320 ("net: microchip: vcap api: Add a storage state to a VCAP rule")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-09-10 18:51:42 +01:00
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drivers net: microchip: vcap api: Fix possible memory leak for vcap_dup_rule() 2023-09-10 18:51:42 +01:00
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tools selftests/net: Improve bind_bhash.sh to accommodate predictable network interface names 2023-09-10 18:49:29 +01:00
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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.