leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mtd: onenand_base: Fix a memory leak bug

Browse Source 
In onenand_scan(), if CONFIG_MTD_ONENAND_VERIFY_WRITE is defined,
'this->verify_buf' is allocated through kzalloc(). However, it is not
deallocated in the following execution, if the allocation for
'this->oob_buf' fails, leading to a memory leak bug. To fix this issue,
free 'this->verify_buf' before returning the error.

Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Wenwen Wang 2019-08-18 10:52:49 -05:00 committed by Miquel Raynal
parent 80107e7648
commit d83aef09aa
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/mtd/nand/onenand/onenand_base.c
View File

@ -3879,6 +3879,9 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
if (!this->oob_buf) {
if (this->options & ONENAND_PAGEBUF_ALLOC) {
this->options &= ~ONENAND_PAGEBUF_ALLOC;
#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
kfree(this->verify_buf);
#endif
kfree(this->page_buf);
}
return -ENOMEM;