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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-07 17:23:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-07 17:23:00 +0200 |
| commit | dcf5b8a7ae4e3875878529597c05f8cac4121515 (patch) | |
| tree | 0d86567a8feacb35b2a62c1ba6cf6c2fe3be65de /drivers/char/ipmi/ipmb_dev_int.c | |
| parent | 864c971e923f55d3ff5ac3ebc87aab8108d30c8a (diff) | |
| parent | 7cfc41f8e80f11ffa8382ed1a505154ceffb79c7 (diff) | |
Merge v6.18.50linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/ipmi/ipmb_dev_int.c')
| -rw-r--r-- | drivers/char/ipmi/ipmb_dev_int.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c index ee2bdc7ed0da..bc0564d87867 100644 --- a/drivers/char/ipmi/ipmb_dev_int.c +++ b/drivers/char/ipmi/ipmb_dev_int.c @@ -141,13 +141,14 @@ static ssize_t ipmb_write(struct file *file, const char __user *buf, u8 msg[MAX_MSG_LEN]; ssize_t ret; - if (count > sizeof(msg)) + if (!count || count > sizeof(msg)) return -EINVAL; if (copy_from_user(&msg, buf, count)) return -EFAULT; - if (count < msg[0]) + if (msg[IPMB_MSG_LEN_IDX] < IPMB_REQUEST_LEN_MIN || + count < (size_t)msg[IPMB_MSG_LEN_IDX] + 1) return -EINVAL; rq_sa = GET_7BIT_ADDR(msg[RQ_SA_8BIT_IDX]); |