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author | James Morris <james.l.morris@oracle.com> | 2014-04-14 11:23:14 +1000 |
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committer | James Morris <james.l.morris@oracle.com> | 2014-04-14 11:23:14 +1000 |
commit | ecd740c6f2f092b90b95fa35f757973589eaaca2 (patch) | |
tree | ce02b1e18c4fc5729699251460cd8be7604d8401 /kernel/kexec.c | |
parent | selinux: correctly label /proc inodes in use before the policy is loaded (diff) | |
parent | Linux 3.14 (diff) | |
download | linux-dev-ecd740c6f2f092b90b95fa35f757973589eaaca2.tar.xz linux-dev-ecd740c6f2f092b90b95fa35f757973589eaaca2.zip |
Merge commit 'v3.14' into next
Diffstat (limited to 'kernel/kexec.c')
-rw-r--r-- | kernel/kexec.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c index 9c970167e402..60bafbed06ab 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -932,6 +932,7 @@ static int kimage_load_segment(struct kimage *image, */ struct kimage *kexec_image; struct kimage *kexec_crash_image; +int kexec_load_disabled; static DEFINE_MUTEX(kexec_mutex); @@ -942,7 +943,7 @@ SYSCALL_DEFINE4(kexec_load, unsigned long, entry, unsigned long, nr_segments, int result; /* We only trust the superuser with rebooting the system. */ - if (!capable(CAP_SYS_BOOT)) + if (!capable(CAP_SYS_BOOT) || kexec_load_disabled) return -EPERM; /* @@ -1536,7 +1537,7 @@ void vmcoreinfo_append_str(const char *fmt, ...) size_t r; va_start(args, fmt); - r = vsnprintf(buf, sizeof(buf), fmt, args); + r = vscnprintf(buf, sizeof(buf), fmt, args); va_end(args); r = min(r, vmcoreinfo_max_size - vmcoreinfo_size); |