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Devicetree fixes for v6.17, part 1:

Browse Source 
- Fix a memory leak for of_pci_add_properties() failure case. Then fix
   the introduced UAF.
 
 - Add missing IORESOURCE_MEM flag on of_reserved_mem_region_to_resource()
 
 - Add already in use vendor prefix "eswin"
 
 - Clarify "of of" comment in of_match_device(). After many years of
   drive-by patches dropping the 2nd "of" (which referred to
   OpenFirmware), a correct patch finally arrived.
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Merge tag 'devicetree-fixes-for-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Fix a memory leak for of_pci_add_properties() failure case. Then fix
   the introduced UAF.

 - Add missing IORESOURCE_MEM flag on of_reserved_mem_region_to_resource()

 - Add already in use vendor prefix "eswin"

 - Clarify "of of" comment in of_match_device(). After many years of
   drive-by patches dropping the 2nd "of" (which referred to
   OpenFirmware), a correct patch finally arrived

* tag 'devicetree-fixes-for-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: dynamic: Fix use after free in of_changeset_add_prop_helper()
  dt-bindings: vendor-prefixes: add eswin
  of: reserved_mem: Add missing IORESOURCE_MEM flag on resources
  of: dynamic: Fix memleak when of_pci_add_properties() failed
  of: Clarify OF device context in of_match_device() comment
This commit is contained in:
Linus Torvalds 2025-08-25 18:47:58 -07:00
commit fab1beda75
4 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/vendor-prefixes.yaml
View File

@ -507,6 +507,8 @@ patternProperties:
description: Espressif Systems Co. Ltd.
"^est,.*":
description: ESTeem Wireless Modems
"^eswin,.*":
description: Beijing ESWIN Technology Group Co. Ltd.
"^ettus,.*":
description: NI Ettus Research
"^eukrea,.*":

4
drivers/of/device.c
View File

@ -17,8 +17,8 @@
/**
* of_match_device - Tell if a struct device matches an of_device_id list
* @matches: array of of device match structures to search in
* @dev: the of device structure to match against
* @matches: array of of_device_id match structures to search in
* @dev: the OF device structure to match against
*
* Used by a driver to check whether an platform_device present in the
* system is in its list of supported devices.

9
drivers/of/dynamic.c
View File

@ -935,10 +935,15 @@ static int of_changeset_add_prop_helper(struct of_changeset *ocs,
return -ENOMEM;
ret = of_changeset_add_property(ocs, np, new_pp);
if (ret)
if (ret) {
__of_prop_free(new_pp);
return ret;
}
return ret;
new_pp->next = np->deadprops;
np->deadprops = new_pp;
return 0;
}
/**

1
drivers/of/of_reserved_mem.c
View File

@ -771,6 +771,7 @@ int of_reserved_mem_region_to_resource(const struct device_node *np,
return -EINVAL;
resource_set_range(res, rmem->base, rmem->size);
res->flags = IORESOURCE_MEM;
res->name = rmem->name;
return 0;
}