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author | Arjan van de Ven <arjan@linux.intel.com> | 2009-09-26 20:50:25 +0200 |
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committer | Len Brown <len.brown@intel.com> | 2009-10-03 00:59:12 -0400 |
commit | d9f65018065ee1b161a85f54132193f248a45439 (patch) | |
tree | 40b3d3f68ee8bc38f6c455c8722c95241690f058 /drivers/acpi/dock.c | |
parent | 0efe5e32c8729ef44b00d9a7203e4c99a6378b27 (diff) |
ACPI: Fix bound checks for copy_from_user in the acpi /proc code
The ACPI /proc write() code takes an unsigned length argument like any write()
function, but then assigned it to a *signed* integer called "len".
Only after this is a sanity check for len done to make it not larger than 4.
Due to the type change a len < 0 is in principle also possible; this patch
adds a check for this.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/dock.c')
0 files changed, 0 insertions, 0 deletions