Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-04 04:04:19 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

lib/btree: fix possible NULL pointer dereference

Browse Source 
mempool_alloc() can return null in atomic case.

Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Cc: Joern Engel <joern@logfs.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
kirjanov@gmail.com 2010-05-15 12:32:34 -04:00 committed by Linus Torvalds
parent bdef2fe88b
commit 43aa7ac736
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/btree.c
View File

@ -95,7 +95,8 @@ static unsigned long *btree_node_alloc(struct btree_head *head, gfp_t gfp)
unsigned long *node;
node = mempool_alloc(head->mempool, gfp);
memset(node, 0, NODESIZE);
if (likely(node))
memset(node, 0, NODESIZE);
return node;
}