diff options
| author | Ed Maste <emaste@FreeBSD.org> | 2026-05-29 20:48:34 +0000 |
|---|---|---|
| committer | Ed Maste <emaste@FreeBSD.org> | 2026-06-01 16:30:20 +0000 |
| commit | 72e34b3e3907d5fd63abf7b2246cae80641769b3 (patch) | |
| tree | 2bc1472e1f8ea27f34ca1e3d57521e60b88fd85b | |
| parent | 79d0dbc9c6d6a1627c9f3eeab0633c232a6a0a34 (diff) | |
get/setpriority: Add capability mode checks
Reviewed by: oshogbo
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D57345
| -rw-r--r-- | sys/kern/kern_resource.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sys/kern/kern_resource.c b/sys/kern/kern_resource.c index 31f89bd41f6d..95c4e7d5eead 100644 --- a/sys/kern/kern_resource.c +++ b/sys/kern/kern_resource.c @@ -37,6 +37,7 @@ #include <sys/param.h> #include <sys/systm.h> #include <sys/sysproto.h> +#include <sys/capsicum.h> #include <sys/file.h> #include <sys/filedesc.h> #include <sys/kernel.h> @@ -99,6 +100,13 @@ kern_getpriority(struct thread *td, int which, int who) struct pgrp *pg; int error, low; + if (IN_CAPABILITY_MODE(td)) { + if (which != PRIO_PROCESS) + return (ECAPMODE); + if (who != 0 && who != td->td_proc->p_pid) + return (ECAPMODE); + } + error = 0; low = PRIO_MAX + 1; switch (which) { @@ -189,6 +197,14 @@ kern_setpriority(struct thread *td, int which, int who, int prio) int found = 0, error = 0; curp = td->td_proc; + + if (IN_CAPABILITY_MODE(td)) { + if (which != PRIO_PROCESS) + return (ECAPMODE); + if (who != 0 && who != curp->p_pid) + return (ECAPMODE); + } + switch (which) { case PRIO_PROCESS: if (who == 0) { |