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| author | Ricardo Ribalda <ribalda@chromium.org> | 2023-01-04 15:38:47 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-03 07:50:04 +0100 |
| commit | 7e99f8b69c11c104933b9bc8fda226ebfb8aaaa5 (patch) | |
| tree | f6d0c0a96b7af09eea2f86d5d7bd1bb42f2ec7b9 /kernel/kexec_file.c | |
| parent | Documentation: sysctl: correct kexec_load_disabled (diff) | |
| download | linux-7e99f8b69c11c104933b9bc8fda226ebfb8aaaa5.tar.xz linux-7e99f8b69c11c104933b9bc8fda226ebfb8aaaa5.zip | |
kexec: factor out kexec_load_permitted
Both syscalls (kexec and kexec_file) do the same check, let's factor it
out.
Link: https://lkml.kernel.org/r/20221114-disable-kexec-reset-v6-2-6a8531a09b9a@chromium.org
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Guilherme G. Piccoli <gpiccoli@igalia.com>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Philipp Rudo <prudo@redhat.com>
Cc: Ross Zwisler <zwisler@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/kexec_file.c')
| -rw-r--r-- | kernel/kexec_file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index dd5983010b7b..c897eb4b8c8c 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -330,7 +330,7 @@ SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd, struct kimage **dest_image, *image; /* We only trust the superuser with rebooting the system. */ - if (!capable(CAP_SYS_BOOT) || kexec_load_disabled) + if (!kexec_load_permitted()) return -EPERM; /* Make sure we have a legal set of flags */ |