Re: [PATCH v2] s390: fix handling of -1 in set{,fs}[gu]id16 syscalls

2018-01-15 Thread Heiko Carstens
On Mon, Jan 15, 2018 at 08:38:17PM +0100, Eugene Syromiatnikov wrote: > For some reason, the implementation of some 16-bit ID system calls > (namely, setuid16/setgid16 and setfsuid16/setfsgid16) used type cast > instead of low2highgid/low2highuid macros for converting [GU]IDs, which > led to incorr

[PATCH v2] s390: fix handling of -1 in set{,fs}[gu]id16 syscalls

2018-01-15 Thread Eugene Syromiatnikov
For some reason, the implementation of some 16-bit ID system calls (namely, setuid16/setgid16 and setfsuid16/setfsgid16) used type cast instead of low2highgid/low2highuid macros for converting [GU]IDs, which led to incorrect handling of value of -1 (which ought to be considered invalid). Discovere