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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2020-11-06 09:52:05 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-11-09 14:30:30 +0100 |
| commit | 1e106aa3509b86738769775969822ffc1ec21bf4 (patch) | |
| tree | 8e8a975a56017ec49c9a8190a5a4f5cd7ef64431 /kernel/locking | |
| parent | Linux 5.10-rc3 (diff) | |
| download | linux-1e106aa3509b86738769775969822ffc1ec21bf4.tar.xz linux-1e106aa3509b86738769775969822ffc1ec21bf4.zip | |
futex: Don't enable IRQs unconditionally in put_pi_state()
The exit_pi_state_list() function calls put_pi_state() with IRQs disabled
and is not expecting that IRQs will be enabled inside the function.
Use the _irqsave() variant so that IRQs are restored to the original state
instead of being enabled unconditionally.
Fixes: 153fbd1226fb ("futex: Fix more put_pi_state() vs. exit_pi_state_list() races")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201106085205.GA1159983@mwanda
Diffstat (limited to 'kernel/locking')
0 files changed, 0 insertions, 0 deletions