diff options
| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-22 14:18:42 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-17 10:50:12 +0200 |
| commit | 5bd5307cd26440f04d6e1ae5080d7975d6d1392f (patch) | |
| tree | 851324c3680403669c97318e3f1dbf3d85e98411 /arch/mips | |
| parent | ed374eee8ce649fa157f5fad7e46a9674accdc0d (diff) | |
MIPS: OCTEON: irq: Fix potential NULL pointer dereference
commit 792a402c2840054533ef56279c212ef6da87d811 upstream.
There is a potential NULL pointer dereference in case kzalloc()
fails and returns NULL.
Fix this by adding a NULL check on *cd*
This bug was detected with the help of Coccinelle.
Fixes: 64b139f97c01 ("MIPS: OCTEON: irq: add CIB and other fixes")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/cavium-octeon/octeon-irq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c index f97be32bf699..3ad1f76c063a 100644 --- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -2199,6 +2199,9 @@ static int octeon_irq_cib_map(struct irq_domain *d, } cd = kzalloc(sizeof(*cd), GFP_KERNEL); + if (!cd) + return -ENOMEM; + cd->host_data = host_data; cd->bit = hw; |