linux-kernel - [GIT PULL] locking/urgent for v6.5-rc4

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Message-ID: <20230730094410.GCZMYw6t2O0L+N/93z@fat_crate.local>
Date:   Sun, 30 Jul 2023 11:44:10 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] locking/urgent for v6.5-rc4

Hi Linus,

please pull a single urgent locking fix for 6.5.

Thx.

---

The following changes since commit fdf0eaf11452d72945af31804e2a1048ee1b574c:

  Linux 6.5-rc2 (2023-07-16 15:10:37 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/locking_urgent_for_v6.5_rc4

for you to fetch changes up to f7853c34241807bb97673a5e97719123be39a09e:

  locking/rtmutex: Fix task->pi_waiters integrity (2023-07-17 13:59:10 +0200)

----------------------------------------------------------------
- Fix a rtmutex race condition resulting from sharing of the sort key
  between the lock waiters and the PI chain tree (->pi_waiters) of
  a task by giving each tree their own sort key

----------------------------------------------------------------
Peter Zijlstra (1):
      locking/rtmutex: Fix task->pi_waiters integrity

 kernel/locking/rtmutex.c        | 170 +++++++++++++++++++++++++++-------------
 kernel/locking/rtmutex_api.c    |   2 +-
 kernel/locking/rtmutex_common.h |  47 ++++++++---
 kernel/locking/ww_mutex.h       |  12 +--
 4 files changed, 155 insertions(+), 76 deletions(-)

-- 
Regards/Gruss,
    Boris.

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