diff options
| author | Jamie Liu <jamieliu@google.com> | 2019-01-28 10:59:01 -0800 |
|---|---|---|
| committer | Shentubot <shentubot@google.com> | 2019-01-28 11:00:23 -0800 |
| commit | 1cedccf8e9b63757c182477f803afcb27bd9e17e (patch) | |
| tree | 08451a5d9f5286cf64b1b64e1c7fa36819db1c1f | |
| parent | a8b8e13154fe39396b9139e8409cb822bbe0a68a (diff) | |
Drop the one-page limit for /proc/[pid]/{cmdline,environ}.
It never actually should have applied to environ (the relevant change in
Linux 4.2 is c2c0bb44620d "proc: fix PAGE_SIZE limit of
/proc/$PID/cmdline"), and we claim to be Linux 4.4 now anyway.
PiperOrigin-RevId: 231250661
Change-Id: I37f9c4280a533d1bcb3eebb7803373ac3c7b9f15
| -rw-r--r-- | pkg/sentry/fs/proc/exec_args.go | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/pkg/sentry/fs/proc/exec_args.go b/pkg/sentry/fs/proc/exec_args.go index ddda67f54..a716eb5f5 100644 --- a/pkg/sentry/fs/proc/exec_args.go +++ b/pkg/sentry/fs/proc/exec_args.go @@ -101,12 +101,6 @@ func (f *execArgFile) Read(ctx context.Context, _ *fs.File, dst usermem.IOSequen return 0, syserror.EINVAL } - // N.B. Linux 4.2 eliminates the arbitrary one page limit. - if offset > usermem.PageSize { - return 0, io.EOF - } - dst = dst.TakeFirst64(usermem.PageSize - offset) - m, err := getTaskMM(f.t) if err != nil { return 0, err |