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Patch "wan: pc300too: abort path on failure" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Mar 22, 2018

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This is a note to let you know that I've just added the patch titled

wan: pc300too: abort path on failure

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
wan-pc300too-abort-path-on-failure.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Thu Mar 22 14:57:32 CET 2018

From: Pan Bian <[email protected]>
Date: Sun, 23 Apr 2017 17:38:35 +0800
Subject: wan: pc300too: abort path on failure

From: Pan Bian <[email protected]>

[ 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.

---
 drivers/net/wan/pc300too.c |    1 +
 1 file changed, 1 insertion(+)
drivers/net/wan/pc300too.c +1 -0
@@ -347,6 +347,7 @@ static int pc300_pci_init_one(struct pci
 	    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 */

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/mt7601u-check-return-value-of-alloc_skb.patch queue-4.4/rndis_wlan-add-return-value-validation.patch queue-4.4/staging-wilc1000-fix-unchecked-return-value.patch queue-4.4/qlcnic-fix-unchecked-return-value.patch queue-4.4/wan-pc300too-abort-path-on-failure.patch