aboutsummaryrefslogtreecommitdiff
path: root/mm/mempolicy.c
diff options
context:
space:
mode:
authorDave Jones <davej@redhat.com>2012-09-06 12:01:00 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-09-06 09:37:58 -0700
commit80de7c3138ee9fd86a98696fd2cf7ad89b995d0a (patch)
tree22fab8f6c06e4de548734d165eebb0352c76556f /mm/mempolicy.c
parent080909503664641432cc8adf2ee2084775fd992a (diff)
downloadlinux-80de7c3138ee9fd86a98696fd2cf7ad89b995d0a.tar.gz
Remove user-triggerable BUG from mpol_to_str
Trivially triggerable, found by trinity: kernel BUG at mm/mempolicy.c:2546! Process trinity-child2 (pid: 23988, threadinfo ffff88010197e000, task ffff88007821a670) Call Trace: show_numa_map+0xd5/0x450 show_pid_numa_map+0x13/0x20 traverse+0xf2/0x230 seq_read+0x34b/0x3e0 vfs_read+0xac/0x180 sys_pread64+0xa2/0xc0 system_call_fastpath+0x1a/0x1f RIP: mpol_to_str+0x156/0x360 Cc: stable@vger.kernel.org Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index bd92431d4c4..4ada3be6e25 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2562,7 +2562,7 @@ int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol, int no_context)
break;
default:
- BUG();
+ return -EINVAL;
}
l = strlen(policy_modes[mode]);