On Sat, 9 Jan 2021 21:41:23 +0100 Dmitry Vyukov <dvyu...@google.com> wrote:
> On Wed, Oct 28, 2020 at 9:31 AM syzbot > <syzbot+5b0d0de84d6c65b8d...@syzkaller.appspotmail.com> wrote: > > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: 4d09c1d9 Merge tag 'devicetree-fixes-for-5.10-1' of git://.. > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=1615899c500000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=a5c844e56cc50cdb > > dashboard link: https://syzkaller.appspot.com/bug?extid=5b0d0de84d6c65b8dd2b > > compiler: gcc (GCC) 10.1.0-syz 20200507 > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+5b0d0de84d6c65b8d...@syzkaller.appspotmail.com > > > > mm/process_vm_access.c:277:5: error: implicit declaration of function > > 'in_compat_syscall'; did you mean 'in_ia32_syscall'? > > [-Werror=implicit-function-declaration] > > Other build failures are piling behind this. > > #syz fix: mm/process_vm_access: Add missing #include <linux/compat.h> For some reason I cant reproduce this with that .config, but presumably this is the fix? From: Andrew Morton <a...@linux-foundation.org> Subject: mm/process_vm_access.c: include compat.h mm/process_vm_access.c:277:5: error: implicit declaration of function 'in_compat_syscall'; did you mean 'in_ia32_syscall'? [-Werror=implicit-function-declaration] Fixes: 38dc5079da7081e "Fix compat regression in process_vm_rw()" Reported-by: syzbot+5b0d0de84d6c65b8d...@syzkaller.appspotmail.com Cc: Kyle Huey <m...@kylehuey.com> Cc: Jens Axboe <ax...@kernel.dk> Cc: Al Viro <v...@zeniv.linux.org.uk> Cc: Christoph Hellwig <h...@lst.de> Signed-off-by: Andrew Morton <a...@linux-foundation.org> --- mm/process_vm_access.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/process_vm_access.c~a +++ a/mm/process_vm_access.c @@ -9,6 +9,7 @@ #include <linux/mm.h> #include <linux/uio.h> #include <linux/sched.h> +#include <linux/compat.h> #include <linux/sched/mm.h> #include <linux/highmem.h> #include <linux/ptrace.h> _
