forcedeth: fix UAF of txrx_stats in nv_remove
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
forcedeth: fix UAF of txrx_stats in nv_remove
nv_remove() frees the per-CPU txrx_stats before unregister_netdev().
Until unregister completes, ndo_get_stats64, the NAPI/xmit data path,
and nv_close()/drain may still access txrx_stats, leading to a
use-after-free.
Free the stats only after unregister_netdev().
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1https://git.kernel.org/stable/c/22666ba1420164753d7b0f5a841986b25ace5435https://git.kernel.org/stable/c/7c22b4ee0bd003cecfc14ca28981cb213e201f70https://git.kernel.org/stable/c/ae20a8a4de06a289d40b0a0633d8d573f1fcb049https://git.kernel.org/stable/c/c9d24a205fd508b9999fcab6aca4c590490a12cfhttps://git.kernel.org/stable/c/cdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9https://git.kernel.org/stable/c/cf2dcde2284562ff87830ca0b7fa2b06e95aef1ehttps://git.kernel.org/stable/c/d51ce7a63b76eda02cabfed1b0cc277b2f5c9bcc