ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.3%
exploitation probability
0.3%top 84% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ipv4: prevent potential spectre v1 gadget in ip_metrics_convert()
if (!type)
continue;
if (type > RTAX_MAX)
return -EINVAL;
...
metrics[type - 1] = val;
@type being used as an array index, we need to prevent
cpu speculation or risk leaking kernel memory content.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1d1d63b612801b3f0a39b7d4467cad0abd60e5c8https://git.kernel.org/stable/c/34c6142f0df9cd75cba5a7aa9df0960d2854b415https://git.kernel.org/stable/c/6850fe301d015a7d2012d1de8caf43dafb7cc2f6https://git.kernel.org/stable/c/746db9ec1e672eee13965625ddac0d97e16fa20chttps://git.kernel.org/stable/c/d50e7348b44f1e046121ff5be01b7fb6978a1149https://git.kernel.org/stable/c/ef050cf5fb70d995a0d03244e25179b7c66a924a