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authorNick Piggin <npiggin@suse.de>2007-03-06 05:34:25 -0500
committerTony Luck <tony.luck@intel.com>2007-03-06 17:49:52 -0500
commit41d5e5d73ecef4ef56b7b4cde962929a712689b4 (patch)
tree51cb9289609c639d86a768ff92340291a4d1b452 /drivers/isdn/Makefile
parent50157b09b33c2ec3637d3b317b06a7235c57c7f2 (diff)
[IA64] permon use-after-free fix
Perfmon associates vmalloc()ed memory with a file descriptor, and installs a vma mapping that memory. Unfortunately, the vm_file field is not filled in, so processes with mappings to that memory do not prevent the file from being closed and the memory freed. This results in use-after-free bugs and multiple freeing of pages, etc. I saw this bug on an Altix on SLES9. Haven't reproduced upstream but it looks like the same issue is there. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Stephane Eranian <eranian@hpl.hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/isdn/Makefile')
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