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Commit 00b3e0a2 authored by Marek Skuczynski's avatar Marek Skuczynski Committed by Paul Mundt
Browse files

sh: Fix access to released memory in dwarf_unwinder_cleanup() 



Signed-off-by: default avatarMarek Skuczynski <mareksk7@gmail.com>
Acked-by: default avatarMatt Fleming <matt@console-pimps.org>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent e5ff15be

arch/sh/kernel/dwarf.c

+4 −4
Original line number Diff line number Diff line
@@ -892,18 +892,18 @@ static struct unwinder dwarf_unwinder = { 


static void dwarf_unwinder_cleanup(void)

{

	struct dwarf_cie *cie;

	struct dwarf_fde *fde;

	struct dwarf_cie *cie, *cie_tmp;

	struct dwarf_fde *fde, *fde_tmp;



	/*

	 * Deallocate all the memory allocated for the DWARF unwinder.

	 * Traverse all the FDE/CIE lists and remove and free all the

	 * memory associated with those data structures.

	 */

	list_for_each_entry(cie, &dwarf_cie_list, link)

	list_for_each_entry_safe(cie, cie_tmp, &dwarf_cie_list, link)

		kfree(cie);



	list_for_each_entry(fde, &dwarf_fde_list, link)

	list_for_each_entry_safe(fde, fde_tmp, &dwarf_fde_list, link)

		kfree(fde);



	kmem_cache_destroy(dwarf_reg_cachep);