Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Dmitry Vyukov
On Wed, May 20, 2020 at 1:42 PM Walter Wu wrote: > > > > > > > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > Move free track from slub alloc meta-data to slub free > > > > > > > > > > > > meta-data in > > > > > >

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Walter Wu
On Wed, 2020-05-20 at 13:15 +0200, 'Dmitry Vyukov' via kasan-dev wrote: > On Wed, May 20, 2020 at 12:15 PM Walter Wu wrote: > > > > On Wed, 2020-05-20 at 11:44 +0200, 'Dmitry Vyukov' via kasan-dev wrote: > > > On Wed, May 20, 2020 at 11:17 AM Walter Wu > > > wrote: > > > > > > On Wed,

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Dmitry Vyukov
On Wed, May 20, 2020 at 12:15 PM Walter Wu wrote: > > On Wed, 2020-05-20 at 11:44 +0200, 'Dmitry Vyukov' via kasan-dev wrote: > > On Wed, May 20, 2020 at 11:17 AM Walter Wu > > wrote: > > > > > On Wed, 2020-05-20 at 13:14 +0800, Walter Wu wrote: > > > > > > > On Wed, May 20, 2020 at 6:03 AM

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Walter Wu
On Wed, 2020-05-20 at 11:44 +0200, 'Dmitry Vyukov' via kasan-dev wrote: > On Wed, May 20, 2020 at 11:17 AM Walter Wu wrote: > > > > On Wed, 2020-05-20 at 13:14 +0800, Walter Wu wrote: > > > > > > On Wed, May 20, 2020 at 6:03 AM Walter Wu > > > > > > wrote: > > > > > > > > > > > > > > > On Tue,

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Dmitry Vyukov
On Wed, May 20, 2020 at 11:17 AM Walter Wu wrote: > > > On Wed, 2020-05-20 at 13:14 +0800, Walter Wu wrote: > > > > > On Wed, May 20, 2020 at 6:03 AM Walter Wu > > > > > wrote: > > > > > > > > > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > > > > > wrote: > > > > > > > > > > > > > >

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Walter Wu
> On Wed, May 20, 2020 at 8:18 AM Walter Wu wrote: > > > > On Wed, 2020-05-20 at 13:14 +0800, Walter Wu wrote: > > > > On Wed, May 20, 2020 at 6:03 AM Walter Wu > > > > wrote: > > > > > > > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > > > > wrote: > > > > > > > > > > > > > > Move

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Dmitry Vyukov
On Wed, May 20, 2020 at 8:18 AM Walter Wu wrote: > > On Wed, 2020-05-20 at 13:14 +0800, Walter Wu wrote: > > > On Wed, May 20, 2020 at 6:03 AM Walter Wu > > > wrote: > > > > > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > > > wrote: > > > > > > > > > > > > Move free track from slub

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-20 Thread Walter Wu
On Wed, 2020-05-20 at 13:14 +0800, Walter Wu wrote: > > On Wed, May 20, 2020 at 6:03 AM Walter Wu wrote: > > > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > > wrote: > > > > > > > > > > Move free track from slub alloc meta-data to slub free meta-data in > > > > > order to make struct

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-19 Thread Walter Wu
> On Wed, May 20, 2020 at 6:03 AM Walter Wu wrote: > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > wrote: > > > > > > > > Move free track from slub alloc meta-data to slub free meta-data in > > > > order to make struct kasan_free_meta size is 16 bytes. It is a good > > > > size

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-19 Thread Walter Wu
> On Wed, May 20, 2020 at 6:03 AM Walter Wu wrote: > > > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu > > > wrote: > > > > > > > > Move free track from slub alloc meta-data to slub free meta-data in > > > > order to make struct kasan_free_meta size is 16 bytes. It is a good > > > > size

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-19 Thread Dmitry Vyukov
On Wed, May 20, 2020 at 6:03 AM Walter Wu wrote: > > > On Tue, May 19, 2020 at 4:25 AM Walter Wu wrote: > > > > > > Move free track from slub alloc meta-data to slub free meta-data in > > > order to make struct kasan_free_meta size is 16 bytes. It is a good > > > size because it is the minimal

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-19 Thread Walter Wu
> On Tue, May 19, 2020 at 4:25 AM Walter Wu wrote: > > > > Move free track from slub alloc meta-data to slub free meta-data in > > order to make struct kasan_free_meta size is 16 bytes. It is a good > > size because it is the minimal redzone size and a good number of > > alignment. > > > > For

Re: [PATCH v4 2/4] kasan: record and print the free track

2020-05-19 Thread Dmitry Vyukov
On Tue, May 19, 2020 at 4:25 AM Walter Wu wrote: > > Move free track from slub alloc meta-data to slub free meta-data in > order to make struct kasan_free_meta size is 16 bytes. It is a good > size because it is the minimal redzone size and a good number of > alignment. > > For free track in

[PATCH v4 2/4] kasan: record and print the free track

2020-05-18 Thread Walter Wu
Move free track from slub alloc meta-data to slub free meta-data in order to make struct kasan_free_meta size is 16 bytes. It is a good size because it is the minimal redzone size and a good number of alignment. For free track in generic KASAN, we do the modification in struct kasan_alloc_meta