Re: [RFC][PATCH] fix d_absolute_path() interplay with fsmount()

(off-list ancestor, not in this archive)
Re: [PATCH 02/10] vfs: syscall: Add move_mount(2) to move mounts around · Eric W. Biederman <hidden> · 2019-07-09
Re: [PATCH 02/10] vfs: syscall: Add move_mount(2) to move mounts around · Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> · 2019-07-09
Re: [PATCH 02/10] vfs: syscall: Add move_mount(2) to move mounts around · Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> · 2019-07-22
Re: [PATCH 02/10] vfs: syscall: Add move_mount(2) to move mounts around · John Johansen <john.johansen@canonical.com> · 2019-07-23
Re: [PATCH 02/10] vfs: syscall: Add move_mount(2) to move mounts around · Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> · 2019-07-23
Re: [PATCH 02/10] vfs: syscall: Add move_mount(2) to move mounts around · Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> · 2019-08-06
[PATCH] LSM: Disable move_mount() syscall when TOMOYO or AppArmor is enabled. · Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> · 2019-08-09
[RFC][PATCH] fix d_absolute_path() interplay with fsmount() · Al Viro <viro@zeniv.linux.org.uk> · 2019-08-22
Re: [RFC][PATCH] fix d_absolute_path() interplay with fsmount() · Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> · 2019-08-30

From: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Date: 2019-08-30 10:11:39
Also in: linux-fsdevel

On 2019/08/22 12:51, Al Viro wrote:

[bringing a private thread back to the lists]

There's a bug in interplay of fsmount() and d_absolute_path().
Namely, the check in d_absolute_path() treats the
not-yet-attached mount as "reached absolute root".

I think you can send this patch to linux-next.

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