evie/android_kernel_oneplus_msm8998
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aio: hold an extra file reference over AIO read/write operations

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Otherwise we might dereference an already freed file and/or inode
when aio_complete is called before we return from the read_iter or
write_iter method.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
(cherry picked from commit 0b944d3a4bba6b25f43aed530f4fa85c04d162a6)
Change-Id: I628a87b5036ba1ba5ba5152fa0329d02999d3649
Git-Commit: 0b944d3a4bba6b25f43aed530f4fa85c04d162a6
Git-Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
[riteshh@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
This commit is contained in:
Christoph Hellwig 2016-10-30 11:42:01 -05:00 • committed by Gerrit - the friendly Code Review server
parent 68cad04925
commit fc468d5035
1 changed files with 2 additions and 0 deletions
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2
fs/aio.c
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@ -1470,6 +1470,7 @@ rw_common:
len = ret;
get_file(file);
if (rw == WRITE)
file_start_write(file);
@ -1477,6 +1478,7 @@ rw_common:
if (rw == WRITE)
file_end_write(file);
fput(file);
kfree(iovec);
break;