Re: [PATCH 4.4 099/190] arm64: futex: Fix undefined behaviour with FUTEX_OP_OPARG_SHIFT usage

2018-05-17 Thread Greg Kroah-Hartman
On Wed, May 16, 2018 at 12:15:36AM +0100, Ben Hutchings wrote: > On Wed, 2018-04-11 at 20:35 +0200, Greg Kroah-Hartman wrote: > > 4.4-stable review patch.  If anyone has any objections, please let me know. > > > > -- > > > > > From: Will Deacon > > > > > > [ Upstream commit 5f1

Re: [PATCH 4.4 099/190] arm64: futex: Fix undefined behaviour with FUTEX_OP_OPARG_SHIFT usage

2018-05-15 Thread Ben Hutchings
On Wed, 2018-04-11 at 20:35 +0200, Greg Kroah-Hartman wrote: > 4.4-stable review patch.  If anyone has any objections, please let me know. > > -- > > > From: Will Deacon > > > [ Upstream commit 5f16a046f8e144c294ef98cd29d9458b5f8273e5 ] > > FUTEX_OP_OPARG_SHIFT instructs the f

[PATCH 4.4 099/190] arm64: futex: Fix undefined behaviour with FUTEX_OP_OPARG_SHIFT usage

2018-04-11 Thread Greg Kroah-Hartman
4.4-stable review patch. If anyone has any objections, please let me know. -- From: Will Deacon [ Upstream commit 5f16a046f8e144c294ef98cd29d9458b5f8273e5 ] FUTEX_OP_OPARG_SHIFT instructs the futex code to treat the 12-bit oparg field as a shift value, potentially leading to