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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-09-10 16:31:04 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-28 03:01:32 -0400 |
| commit | 8cffabab018cad0dfcfe3ab44ff8c2510fc2408d (patch) | |
| tree | a5f5ab5ac0d8a86645256b47416dbaba4faa1bf5 /fs/buffer.c | |
| parent | f2e81c026017222c18b178f175adf415c276b131 (diff) | |
arc: don't leak bits of kernel stack into coredump
commit 7798bf2140ebcc36eafec6a4194fffd8d585d471 upstream.
On faulting sigreturn we do get SIGSEGV, all right, but anything
we'd put into pt_regs could end up in the coredump. And since
__copy_from_user() never zeroed on arc, we'd better bugger off
on its failure without copying random uninitialized bits of
kernel stack into pt_regs...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/buffer.c')
0 files changed, 0 insertions, 0 deletions