Re: [PATCH] pipe: handle zero sized F_SETPIPE_SZ fcntl

2017-02-20 Thread Christoph Hellwig
Looks fine: Reviewed-by: Christoph Hellwig

[PATCH] pipe: handle zero sized F_SETPIPE_SZ fcntl

2017-02-19 Thread Nicolai Stange
Syzkaller reported this UBSAN: Undefined behaviour in include/linux/log2.h:63:13 shift exponent 64 is too large for 64-bit type 'long unsigned int' Call Trace: __dump_stack lib/dump_stack.c:15 [inline] dump_stack+0x108/0x19b lib/dump_stack.c:51 ubsan_epilogue+0x12/0x8f lib/ubsan.c:1