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| author | Pan Bian <bianpan2016@163.com> | 2017-04-23 17:38:35 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-24 10:57:33 +0100 |
| commit | 4525033938cb6d8ed70717506917cb5e547debb8 (patch) | |
| tree | ea6939e1c5e60b359c9016a2b15c37d8e16c1079 | |
| parent | fc0808f0c2a43212f73d438e083a34251984540c (diff) | |
| download | linux-stable-4525033938cb6d8ed70717506917cb5e547debb8.tar.gz linux-stable-4525033938cb6d8ed70717506917cb5e547debb8.tar.bz2 linux-stable-4525033938cb6d8ed70717506917cb5e547debb8.zip | |
wan: pc300too: abort path on failure
[ Upstream commit 2a39e7aa8a98f777f0732ca7125b6c9668791760 ]
In function pc300_pci_init_one(), on the ioremap error path, function
pc300_pci_remove_one() is called to free the allocated memory. However,
the path is not terminated, and the freed memory will be used later,
resulting in use-after-free bugs. This path fixes the bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/wan/pc300too.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c index db363856e0b5..2b064998915f 100644 --- a/drivers/net/wan/pc300too.c +++ b/drivers/net/wan/pc300too.c @@ -347,6 +347,7 @@ static int pc300_pci_init_one(struct pci_dev *pdev, card->rambase == NULL) { pr_err("ioremap() failed\n"); pc300_pci_remove_one(pdev); + return -ENOMEM; } /* PLX PCI 9050 workaround for local configuration register read bug */ |