Re: [PATCH] io_uring: check ctx->sq_data before io_sq_offload_start

2021-04-19 Thread Jens Axboe
On 4/19/21 6:36 AM, Palash Oswal wrote: > syzkaller identified KASAN: null-ptr-deref Read in io_uring_create > bug on the stable 5.11-y tree. > > BUG: KASAN: null-ptr-deref in io_sq_offload_start fs/io_uring.c:8254 [inline] > BUG: KASAN: null-ptr-deref in io_disable_sqo_submit fs/io_uring.c:8999

[PATCH] io_uring: check ctx->sq_data before io_sq_offload_start

2021-04-19 Thread Palash Oswal
syzkaller identified KASAN: null-ptr-deref Read in io_uring_create bug on the stable 5.11-y tree. BUG: KASAN: null-ptr-deref in io_sq_offload_start fs/io_uring.c:8254 [inline] BUG: KASAN: null-ptr-deref in io_disable_sqo_submit fs/io_uring.c:8999 [inline] BUG: KASAN: null-ptr-deref in io_uring_cre