net: stmmac: make sure that ptp_rate is not 0 before configuring EST
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: make sure that ptp_rate is not 0 before configuring EST
If the ptp_rate recorded earlier in the driver happens to be 0, this
bogus value will propagate up to EST configuration, where it will
trigger a division by 0.
Prevent this division by 0 by adding the corresponding check and error
code.
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://git.kernel.org/stable/c/451ee661d0f6272017fa012f99617101aa8ddf2chttps://git.kernel.org/stable/c/b15c9a21950e1af6d440ce5a8edfa8a94b9acb9bhttps://git.kernel.org/stable/c/b92ec4a848728460f181def33735605f154d438fhttps://git.kernel.org/stable/c/cbefe2ffa7784525ec5d008ba87c7add19ec631ahttps://git.kernel.org/stable/c/d5e3bfdba0dc419499b801937128957f77503761https://git.kernel.org/stable/c/d6b0f7ed3e9b6c5e2e3a006c8f72c95aa4ac4b74