net: wwan: t7xx: check skb_clone in control TX
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
net: wwan: t7xx: check skb_clone in control TX
t7xx_port_ctrl_tx() clones each skb fragment before passing it to the
port transmit path. The clone is used immediately to set cloned->len, so
an skb_clone() failure results in a NULL pointer dereference.
Check the clone before using it. If previous fragments were already
queued, preserve the driver's existing partial-write behavior by
returning the number of bytes submitted so far.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/05f789fa90d95d5771230e78453cedff2486039dhttps://git.kernel.org/stable/c/112490467586146d323cb7230b1d72137e36900chttps://git.kernel.org/stable/c/4c1b25d85f4c9a0f85f3f8c39988ad266a3f3095https://git.kernel.org/stable/c/7edd4db82f9429591de10be4c904c817f12ba029https://git.kernel.org/stable/c/f7aebaee2961bfcb86f282202d3dbd9b69db1a7c