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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-03-24 08:52:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 13:58:35 +0200 |
| commit | 05f90fe2c7e8f27d7691ae57cb604e4c156b70e6 (patch) | |
| tree | 059e3daa80871ca55c94a7e8895f52721b47a810 | |
| parent | 11f03ba4bcaba6d3a26e109ab7bd5a2b2a53bd93 (diff) | |
| download | linux-stable-05f90fe2c7e8f27d7691ae57cb604e4c156b70e6.tar.gz linux-stable-05f90fe2c7e8f27d7691ae57cb604e4c156b70e6.tar.bz2 linux-stable-05f90fe2c7e8f27d7691ae57cb604e4c156b70e6.zip | |
lib/test: use after free in register_test_dev_kmod()
[ Upstream commit dc0ce6cc4b133f5f2beb8b47dacae13a7d283c2c ]
The "test_dev" pointer is freed but then returned to the caller.
Fixes: d9c6a72d6fa2 ("kmod: add test driver to stress test the module loader")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | lib/test_kmod.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/test_kmod.c b/lib/test_kmod.c index ce1589391413..cb800b1d0d99 100644 --- a/lib/test_kmod.c +++ b/lib/test_kmod.c @@ -1149,6 +1149,7 @@ static struct kmod_test_device *register_test_dev_kmod(void) if (ret) { pr_err("could not register misc device: %d\n", ret); free_test_dev_kmod(test_dev); + test_dev = NULL; goto out; } |