diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2010-01-04 19:26:14 +1030 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-01-06 15:05:19 -0800 |
| commit | 370b7588553ff0dc89c8b9436a935e2b7fe0207d (patch) | |
| tree | 081d15b02e50dcfd0042ae36771cbae533adf828 | |
| parent | 743c078e0e10e41b8b10f3c07973068d76fcc866 (diff) | |
lguest: fix bug in setting guest GDT entry
commit 3e27249c84beed1c79d767b350e52ad038db9053 upstream.
We kill the guest, but then we blatt random stuff.
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/lguest/segments.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/lguest/segments.c b/drivers/lguest/segments.c index 951c57b0a7e0..ede46581351a 100644 --- a/drivers/lguest/segments.c +++ b/drivers/lguest/segments.c @@ -179,8 +179,10 @@ void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi) * We assume the Guest has the same number of GDT entries as the * Host, otherwise we'd have to dynamically allocate the Guest GDT. */ - if (num >= ARRAY_SIZE(cpu->arch.gdt)) + if (num >= ARRAY_SIZE(cpu->arch.gdt)) { kill_guest(cpu, "too many gdt entries %i", num); + return; + } /* Set it up, then fix it. */ cpu->arch.gdt[num].a = lo; |