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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 13:13:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-27 13:13:43 +0300 |
| commit | 53c2f13c1ee59c8889bf23ef58653677e3ec1644 (patch) | |
| tree | 8a34720bf4bc2329d2ff328318cb78ea474f0d41 /drivers/tee/tee_core.c | |
| parent | 3394ade23d7e3934a166e973e664046ea6f559d4 (diff) | |
| parent | e60eb441596d1c70e4a264d2bac726c6cd2da067 (diff) | |
| download | linux-rolling-stable.tar.xz | |
Merge v6.15.4linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tee/tee_core.c')
| -rw-r--r-- | drivers/tee/tee_core.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c index d113679b1e2d..acc7998758ad 100644 --- a/drivers/tee/tee_core.c +++ b/drivers/tee/tee_core.c @@ -10,6 +10,7 @@ #include <linux/fs.h> #include <linux/idr.h> #include <linux/module.h> +#include <linux/overflow.h> #include <linux/slab.h> #include <linux/tee_core.h> #include <linux/uaccess.h> @@ -19,7 +20,7 @@ #define TEE_NUM_DEVICES 32 -#define TEE_IOCTL_PARAM_SIZE(x) (sizeof(struct tee_param) * (x)) +#define TEE_IOCTL_PARAM_SIZE(x) (size_mul(sizeof(struct tee_param), (x))) #define TEE_UUID_NS_NAME_SIZE 128 @@ -487,7 +488,7 @@ static int tee_ioctl_open_session(struct tee_context *ctx, if (copy_from_user(&arg, uarg, sizeof(arg))) return -EFAULT; - if (sizeof(arg) + TEE_IOCTL_PARAM_SIZE(arg.num_params) != buf.buf_len) + if (size_add(sizeof(arg), TEE_IOCTL_PARAM_SIZE(arg.num_params)) != buf.buf_len) return -EINVAL; if (arg.num_params) { @@ -565,7 +566,7 @@ static int tee_ioctl_invoke(struct tee_context *ctx, if (copy_from_user(&arg, uarg, sizeof(arg))) return -EFAULT; - if (sizeof(arg) + TEE_IOCTL_PARAM_SIZE(arg.num_params) != buf.buf_len) + if (size_add(sizeof(arg), TEE_IOCTL_PARAM_SIZE(arg.num_params)) != buf.buf_len) return -EINVAL; if (arg.num_params) { @@ -699,7 +700,7 @@ static int tee_ioctl_supp_recv(struct tee_context *ctx, if (get_user(num_params, &uarg->num_params)) return -EFAULT; - if (sizeof(*uarg) + TEE_IOCTL_PARAM_SIZE(num_params) != buf.buf_len) + if (size_add(sizeof(*uarg), TEE_IOCTL_PARAM_SIZE(num_params)) != buf.buf_len) return -EINVAL; params = kcalloc(num_params, sizeof(struct tee_param), GFP_KERNEL); @@ -798,7 +799,7 @@ static int tee_ioctl_supp_send(struct tee_context *ctx, get_user(num_params, &uarg->num_params)) return -EFAULT; - if (sizeof(*uarg) + TEE_IOCTL_PARAM_SIZE(num_params) > buf.buf_len) + if (size_add(sizeof(*uarg), TEE_IOCTL_PARAM_SIZE(num_params)) > buf.buf_len) return -EINVAL; params = kcalloc(num_params, sizeof(struct tee_param), GFP_KERNEL); |