The patch titled
Subject: ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix
has been added to the -mm tree. Its filename is
ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Subject: ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix
s/PIDTYPE_PID/PIDTYPE_TGID/, per Eric
Link: http://lkml.kernel.org/r/20200327195643.GA9366@xxxxxxxxxx
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/mqueue.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/ipc/mqueue.c~ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix
+++ a/ipc/mqueue.c
@@ -801,7 +801,7 @@ static void __do_notify(struct mqueue_in
* bypass check_kill_permission(). It is from kernel
* but si_fromuser() can't know this.
*/
- task = pid_task(info->notify_owner, PIDTYPE_PID);
+ task = pid_task(info->notify_owner, PIDTYPE_TGID);
if (task)
do_send_sig_info(info->notify.sigev_signo,
&sig_i, task, PIDTYPE_TGID);
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission.patch
ipc-mqueuec-change-__do_notify-to-bypass-check_kill_permission-fix.patch
aio-simplify-read_events.patch
