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由 Heiko Carstens 提交于
For FS_IOC_RESVSP and FS_IOC_RESVSP64 compat_sys_ioctl() uses its arg argument as a pointer to userspace. However it is missing a a call to compat_ptr() which will do a proper pointer conversion. This was introduced with 3e63cbb1 "fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls". Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Cc: Ankit Jain <me@ankitjain.org> Acked-by: NChristoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: NArnd Bergmann <arndbergmann@googlemail.com> Acked-by: NDavid S. Miller <davem@davemloft.net> Cc: <stable@kernel.org> [2.6.31.x] Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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