diff options
| author | pluknet <pluknet@FreeBSD.org> | 2011-06-17 07:30:56 +0000 |
|---|---|---|
| committer | pluknet <pluknet@FreeBSD.org> | 2011-06-17 07:30:56 +0000 |
| commit | 108671f8107f11abb39794484ddd7f68d4f1991d (patch) | |
| tree | 3fb9d4d7bde28d6778ea66a822985a4fe9fa2cce /sys/compat/linprocfs | |
| parent | a262e24ff4cc1d41e01cbf14b859f5e0b541db03 (diff) | |
| download | FreeBSD-src-108671f8107f11abb39794484ddd7f68d4f1991d.zip FreeBSD-src-108671f8107f11abb39794484ddd7f68d4f1991d.tar.gz | |
Return empty cmdline/environ string for processes with kernel address
space. This is consistent with the behavior in linux.
PR: kern/157871
Reported by: Petr Salinger <Petr Salinger att seznam cz>
Verified on: GNU/kFreeBSD debian 8.2-1-amd64 (by reporter)
Reviewed by: kib (some time ago)
MFC after: 2 weeks
Diffstat (limited to 'sys/compat/linprocfs')
| -rw-r--r-- | sys/compat/linprocfs/linprocfs.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sys/compat/linprocfs/linprocfs.c b/sys/compat/linprocfs/linprocfs.c index ddbd8b4..692c5a3 100644 --- a/sys/compat/linprocfs/linprocfs.c +++ b/sys/compat/linprocfs/linprocfs.c @@ -1049,6 +1049,15 @@ linprocfs_doproccmdline(PFS_FILL_ARGS) PROC_UNLOCK(p); return (ret); } + + /* + * Mimic linux behavior and pass only processes with usermode + * address space as valid. Return zero silently otherwize. + */ + if (p->p_vmspace == &vmspace0) { + PROC_UNLOCK(p); + return (0); + } if (p->p_args != NULL) { sbuf_bcpy(sb, p->p_args->ar_args, p->p_args->ar_length); PROC_UNLOCK(p); @@ -1073,6 +1082,15 @@ linprocfs_doprocenviron(PFS_FILL_ARGS) PROC_UNLOCK(p); return (ret); } + + /* + * Mimic linux behavior and pass only processes with usermode + * address space as valid. Return zero silently otherwize. + */ + if (p->p_vmspace == &vmspace0) { + PROC_UNLOCK(p); + return (0); + } PROC_UNLOCK(p); ret = linprocfs_doargv(td, p, sb, ps_string_env); |
