vt: prevent kernel-infoleak in con_font_get()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.6%
exploitation probability
0.6%top 54% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
vt: prevent kernel-infoleak in con_font_get()
font.data may not initialize all memory spaces depending on the implementation
of vc->vc_sw->con_font_get. This may cause info-leak, so to prevent this, it
is safest to modify it to initialize the allocated memory space to 0, and it
generally does not affect the overall performance of the system.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1e5a17dc77d8a8bbe67040b32e2ef755901aba44https://git.kernel.org/stable/c/23c4cb8a56978e5b1baa171d42e616e316c2039dhttps://git.kernel.org/stable/c/adb1f312f38f0d2c928ceaff089262798cc260b4https://git.kernel.org/stable/c/b3959d5eca136e0588f9af3867b34032160cb826https://git.kernel.org/stable/c/dc2d5f02636c7587bdd6d1f60fc59c55860b00a4https://git.kernel.org/stable/c/dc794e878e6d79f75205be456b1042a289c5759dhttps://git.kernel.org/stable/c/efc67cee700b89ffbdb74a0603a083ec1290ae31https://git.kernel.org/stable/c/f956052e00de211b5c9ebaa1958366c23f82ee9e