13 lines
437 B
Diff
13 lines
437 B
Diff
--- a/ltq_atm.c
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+++ b/ltq_atm.c
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@@ -338,7 +338,8 @@ static int ppe_ioctl(struct atm_dev *dev
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break;
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case PPE_ATM_MIB_VCC: /* VCC related MIB */
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- copy_from_user(&mib_vcc, arg, sizeof(mib_vcc));
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+ if (copy_from_user(&mib_vcc, arg, sizeof(mib_vcc)))
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+ return -EFAULT;
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conn = find_vpivci(mib_vcc.vpi, mib_vcc.vci);
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if (conn >= 0) {
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mib_vcc.mib_vcc.aal5VccCrcErrors = g_atm_priv_data.conn[conn].aal5_vcc_crc_err;
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