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Commit 55eea973 authored by Max Kellermann's avatar Max Kellermann Committed by Zheng Zengkai
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lib/iov_iter: initialize "flags" in new pipe_buffer

mainline inclusion
from mainline-v5.17-rc6
commit 9d2231c5d74e13b2a0546fee6737ee4446017903
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I4WUKP?from=project-issue
CVE: CVE-2022-0847

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/lib/iov_iter.c?id=9d2231c5d74e13b2a0546fee6737ee4446017903



--------------------------------

The functions copy_page_to_iter_pipe() and push_pipe() can both
allocate a new pipe_buffer, but the "flags" member initializer is
missing.

Fixes: 241699cd ("new iov_iter flavour: pipe-backed")
To: Alexander Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
To: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMax Kellermann <max.kellermann@ionos.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarZhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: default avatarZhang Yi <yi.zhang@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 1d48e14a
Branches fix/TS-1374-D
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