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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2013-10-14 14:26:08 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-10-15 13:47:59 +0200 |
| commit | 9784bd4f1a6ea736ad9bf241f5a965e0a2913a5e (patch) | |
| tree | 8e738103f83aa9a6b40baf1ddfc66cbf43098a45 /drivers/s390 | |
| parent | s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32() (diff) | |
| download | linux-9784bd4f1a6ea736ad9bf241f5a965e0a2913a5e.tar.xz linux-9784bd4f1a6ea736ad9bf241f5a965e0a2913a5e.zip | |
s390/vmlogrdr: fix array access in vmlogrdr_open()
Fix check within vmlogrdr_open() if the minor address is not larger
than the number of array elements.
Found with "smatch":
drivers/s390/char/vmlogrdr.c:318 vmlogrdr_open() warn:
buffer overflow 'sys_ser' 3 <= 3
Acked-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/char/vmlogrdr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index 9b3a24e8d3a0..cf31d3321dab 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -313,7 +313,7 @@ static int vmlogrdr_open (struct inode *inode, struct file *filp) int ret; dev_num = iminor(inode); - if (dev_num > MAXMINOR) + if (dev_num >= MAXMINOR) return -ENODEV; logptr = &sys_ser[dev_num]; |