Author: trasz
Date: Mon Aug 24 12:57:03 2020
New Revision: 364669
URL: https://svnweb.freebsd.org/changeset/base/364669
Log:
MFC r349746:
Fix linuxulator prlimit64(2) with pid == 0. This makes 'ulimit -a'
return something reasonable, and helps linux binaries which attempt
to close all the files, eg apt(8).
Sponsored by: The FreeBSD Foundation
Modified:
stable/12/sys/compat/linux/linux_misc.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/compat/linux/linux_misc.c
==============================================================================
--- stable/12/sys/compat/linux/linux_misc.c Mon Aug 24 12:54:19 2020
(r364668)
+++ stable/12/sys/compat/linux/linux_misc.c Mon Aug 24 12:57:03 2020
(r364669)
@@ -2397,10 +2397,14 @@ linux_prlimit64(struct thread *td, struct linux_prlimi
flags |= PGET_CANDEBUG;
else
flags |= PGET_CANSEE;
- error = pget(args->pid, flags, &p);
- if (error != 0)
- return (error);
-
+ if (args->pid == 0) {
+ p = td->td_proc;
+ PHOLD(p);
+ } else {
+ error = pget(args->pid, flags, &p);
+ if (error != 0)
+ return (error);
+ }
if (args->old != NULL) {
PROC_LOCK(p);
lim_rlimit_proc(p, which, &rlim);
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