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| author |   Gen Zhang <blackgod016574@gmail.com> | 2019-05-26 10:42:40 +0800 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-06-02 19:39:35 +1000 |
| commit | efa9ace68e487ddd29c2b4d6dd23242158f1f607 (patch) | |
| tree | 31afde8eae3bf4cff191adcb16e2e960bf7ba775 /arch/powerpc/platforms/pseries/dlpar.c | |
| parent | powerpc/lib: only build ldstfp.o when CONFIG_PPC_FPU is set (diff) | |
| download | linux-dev-efa9ace68e487ddd29c2b4d6dd23242158f1f607.tar.xz linux-dev-efa9ace68e487ddd29c2b4d6dd23242158f1f607.zip | |
powerpc/pseries/dlpar: Fix a missing check in dlpar_parse_cc_property()
In dlpar_parse_cc_property(), 'prop->name' is allocated by kstrdup().
kstrdup() may return NULL, so it should be checked and handle error.
And prop should be freed if 'prop->name' is NULL.
Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/pseries/dlpar.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/dlpar.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index 17958043e7f7..c852024044bb 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -61,6 +61,10 @@ static struct property *dlpar_parse_cc_property(struct cc_workarea *ccwa) name = (char *)ccwa + be32_to_cpu(ccwa->name_offset); prop->name = kstrdup(name, GFP_KERNEL); + if (!prop->name) { + dlpar_free_cc_property(prop); + return NULL; + } prop->length = be32_to_cpu(ccwa->prop_length); value = (char *)ccwa + be32_to_cpu(ccwa->prop_offset); |