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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2006-09-28 10:56:03 -0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2006-09-28 10:56:03 -0400
commit52149ba6b0ddf3e9d965257cc0513193650b3ea8 (patch)
treeaf8097516b3cd9d9f2397080e4cf81414fd4172a /include/asm-h8300/uaccess.h
parent51dced544e3964b684afc99282ceceaa384b16a8 (diff)
[S390] user readable uninitialised kernel memory.
A user space program can read uninitialised kernel memory by appending to a file from a bad address and then reading the result back. The cause is the copy_from_user function that does not clear the remaining bytes of the kernel buffer after it got a fault on the user space address. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-h8300/uaccess.h')
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