Re: BUG: unable to handle kernel NULL pointer dereference in setup_kmem_cache_node

2019-01-02 Thread Dmitry Vyukov
On Wed, Jan 2, 2019 at 4:51 PM Christopher Lameter wrote: > > On Wed, 2 Jan 2019, Dmitry Vyukov wrote: > > > Am I missing something or __alloc_alien_cache misses check for > > kmalloc_node result? > > > > static struct alien_cache *__alloc_alien_cache(int node, int entries, > >

Re: BUG: unable to handle kernel NULL pointer dereference in setup_kmem_cache_node

2019-01-02 Thread Christopher Lameter
On Wed, 2 Jan 2019, Dmitry Vyukov wrote: > Am I missing something or __alloc_alien_cache misses check for > kmalloc_node result? > > static struct alien_cache *__alloc_alien_cache(int node, int entries, > int batch, gfp_t gfp) > { > size_t me

Re: BUG: unable to handle kernel NULL pointer dereference in setup_kmem_cache_node

2019-01-02 Thread Dmitry Vyukov
On Wed, Jan 2, 2019 at 12:36 PM syzbot wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit:903b77c63167 Merge tag 'linux-kselftest-4.21-rc1' of git:/.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=133428e340 > kernel config:

BUG: unable to handle kernel NULL pointer dereference in setup_kmem_cache_node

2019-01-02 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:903b77c63167 Merge tag 'linux-kselftest-4.21-rc1' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=133428e340 kernel config: https://syzkaller.appspot.com/x/.config?x=53a2f2aa0b1f7606 da