Messages in this thread Patch in this message | | | From | Li Qiong <> | Subject | [PATCH] smackfs: check for allocation failure of kmalloc() | Date | Mon, 13 Jun 2022 14:22:02 +0800 |
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As the possible failure of the kmalloc(), it should be better to check it and print a warning message.
Signed-off-by: Li Qiong <liqiong@nfschina.com> --- security/smack/smackfs.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index 4b58526450d4..0d11ba3cb4cd 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -695,6 +695,11 @@ static void smk_cipso_doi(void) __func__, __LINE__, rc); doip = kmalloc(sizeof(struct cipso_v4_doi), GFP_KERNEL | __GFP_NOFAIL); + if (unlikely(!doip)) { + printk(KERN_WARNING "%s:%d failed to allocate a memory for doip\n", + __func__, __LINE__); + return; + } doip->map.std = NULL; doip->doi = smk_cipso_doi_value; doip->type = CIPSO_V4_MAP_PASS; -- 2.25.1
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