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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-01-22 14:18:42 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-24 07:57:12 +0200 |
| commit | 67c44831dd48adc8b90a9e3c939880573bb8e081 (patch) | |
| tree | 1a7971d6423d0ca7bd9bf52edb6660358f84d5b7 /arch/mips | |
| parent | 06bb14725731fae3dcb71f0d9f0520d76b92f799 (diff) | |
| download | linux-stable-67c44831dd48adc8b90a9e3c939880573bb8e081.tar.gz linux-stable-67c44831dd48adc8b90a9e3c939880573bb8e081.tar.bz2 linux-stable-67c44831dd48adc8b90a9e3c939880573bb8e081.zip | |
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 63d35076722d..ed7c4f1fc6a0 100644 --- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -2168,6 +2168,9 @@ 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; |