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[ciqlts9_2] Multiple patches tested (2 commits) #1277

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[ciqlts9_2] Multiple patches tested (2 commits) #1277

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865806b
RDMA/umad: Reject negative data_len in ib_umad_write
May 27, 2026
e59f8df
can: raw: fix ro->uniq use-after-free in raw_rcv()
May 27, 2026
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8 changes: 6 additions & 2 deletions drivers/infiniband/core/user_mad.c
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Original file line number Diff line number Diff line change
Expand Up @@ -500,7 +500,8 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf,
struct ib_ah *ah;
struct ib_rmpp_mad *rmpp_mad;
__be64 *tid;
int ret, data_len, hdr_len, copy_offset, rmpp_active;
int ret, hdr_len, copy_offset, rmpp_active;
size_t data_len;
u8 base_version;

if (count < hdr_size(file) + IB_MGMT_RMPP_HDR)
Expand Down Expand Up @@ -574,7 +575,10 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf,
}

base_version = ((struct ib_mad_hdr *)&packet->mad.data)->base_version;
data_len = count - hdr_size(file) - hdr_len;
if (check_sub_overflow(count, hdr_size(file) + hdr_len, &data_len)) {
ret = -EINVAL;
goto err_ah;
}
packet->msg = ib_create_send_mad(agent,
be32_to_cpu(packet->mad.hdr.qpn),
packet->mad.hdr.pkey_index, rmpp_active,
Expand Down
11 changes: 10 additions & 1 deletion net/can/raw.c
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Original file line number Diff line number Diff line change
Expand Up @@ -329,6 +329,14 @@ static int raw_notifier(struct notifier_block *nb, unsigned long msg,
return NOTIFY_DONE;
}

static void raw_sock_destruct(struct sock *sk)
{
struct raw_sock *ro = raw_sk(sk);

free_percpu(ro->uniq);
can_sock_destruct(sk);
}

static int raw_init(struct sock *sk)
{
struct raw_sock *ro = raw_sk(sk);
Expand All @@ -353,6 +361,8 @@ static int raw_init(struct sock *sk)
if (unlikely(!ro->uniq))
return -ENOMEM;

sk->sk_destruct = raw_sock_destruct;

/* set notifier */
spin_lock(&raw_notifier_lock);
list_add_tail(&ro->notifier, &raw_notifier_list);
Expand Down Expand Up @@ -403,7 +413,6 @@ static int raw_release(struct socket *sock)
ro->ifindex = 0;
ro->bound = 0;
ro->count = 0;
free_percpu(ro->uniq);

sock_orphan(sk);
sock->sk = NULL;
Expand Down
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