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| author | Jesper Nilsson <jesper.nilsson@axis.com> | 2009-06-11 19:09:00 +0200 |
|---|---|---|
| committer | Jesper Nilsson <jesper.nilsson@axis.com> | 2009-06-11 19:09:00 +0200 |
| commit | 91a120d03fd901fc8b95e85af7903358c5862d65 (patch) | |
| tree | e2ca1d2bedaf65fdaa41a8266fedff9ffe47de53 /arch/cris/arch-v32/drivers/cryptocop.c | |
| parent | 7f2ff23db1de53ea8695bb4a7c1cfab88886e3fd (diff) | |
| download | linux-stable-91a120d03fd901fc8b95e85af7903358c5862d65.tar.gz linux-stable-91a120d03fd901fc8b95e85af7903358c5862d65.tar.bz2 linux-stable-91a120d03fd901fc8b95e85af7903358c5862d65.zip | |
CRISv32: Fix potential null reference in cryptocop driver.
The code didn't test the pointer to the newly allocated
memory, but a parameter sent in as value.
Since the input parameter was most often set, the code
would have used a null pointer if the kmalloc failed.
If the input parameter was not set, the code would
leak the allocated buffer.
http://bugzilla.kernel.org/show_bug.cgi?id=11363
Reported-by: Daniel Marjamäki <danielm77@spray.se>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/arch-v32/drivers/cryptocop.c')
| -rw-r--r-- | arch/cris/arch-v32/drivers/cryptocop.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c index 67c61ea86813..fd529a0ec758 100644 --- a/arch/cris/arch-v32/drivers/cryptocop.c +++ b/arch/cris/arch-v32/drivers/cryptocop.c @@ -1395,7 +1395,7 @@ static int create_md5_pad(int alloc_flag, unsigned long long hashed_length, char if (padlen < MD5_MIN_PAD_LENGTH) padlen += MD5_BLOCK_LENGTH; p = kmalloc(padlen, alloc_flag); - if (!pad) return -ENOMEM; + if (!p) return -ENOMEM; *p = 0x80; memset(p+1, 0, padlen - 1); @@ -1427,7 +1427,7 @@ static int create_sha1_pad(int alloc_flag, unsigned long long hashed_length, cha if (padlen < SHA1_MIN_PAD_LENGTH) padlen += SHA1_BLOCK_LENGTH; p = kmalloc(padlen, alloc_flag); - if (!pad) return -ENOMEM; + if (!p) return -ENOMEM; *p = 0x80; memset(p+1, 0, padlen - 1); |