Re: [PATCH] kasan: Remove use after scope bugs detection.

2019-01-16 Thread Will Deacon
On Fri, Jan 11, 2019 at 09:58:42PM +0300, Andrey Ryabinin wrote: > Use after scope bugs detector seems to be almost entirely useless > for the linux kernel. It exists over two years, but I've seen only > one valid bug so far [1]. And the bug was fixed before it has been > reported. There were some

Re: [PATCH] kasan: Remove use after scope bugs detection.

2019-01-14 Thread Andrey Ryabinin
On 1/14/19 4:24 PM, Dmitry Vyukov wrote: > On Fri, Jan 11, 2019 at 7:58 PM Andrey Ryabinin > wrote: >> >> Use after scope bugs detector seems to be almost entirely useless >> for the linux kernel. It exists over two years, but I've seen only >> one valid bug so far [1]. And the bug was fixed befo

Re: [PATCH] kasan: Remove use after scope bugs detection.

2019-01-14 Thread Dmitry Vyukov
On Fri, Jan 11, 2019 at 7:58 PM Andrey Ryabinin wrote: > > Use after scope bugs detector seems to be almost entirely useless > for the linux kernel. It exists over two years, but I've seen only > one valid bug so far [1]. And the bug was fixed before it has been > reported. There were some other u

[PATCH] kasan: Remove use after scope bugs detection.

2019-01-11 Thread Andrey Ryabinin
Use after scope bugs detector seems to be almost entirely useless for the linux kernel. It exists over two years, but I've seen only one valid bug so far [1]. And the bug was fixed before it has been reported. There were some other use-after-scope reports, but they were false-positives due to diffe