octeontx2-af: avoid off-by-one read from userspace
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 87% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: avoid off-by-one read from userspace
We try to access count + 1 byte from userspace with memdup_user(buffer,
count + 1). However, the userspace only provides buffer of count bytes and
only these count bytes are verified to be okay to access. To ensure the
copied buffer is NUL terminated, we use memdup_user_nul instead.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0a0285cee11c7dcc2657bcd456e469958a5009e7https://git.kernel.org/stable/c/8f11fe3ea3fc261640cfc8a5addd838000407c67https://git.kernel.org/stable/c/bcdac70adceb44373da204c3c297f2a98e13216ehttps://git.kernel.org/stable/c/ec697fbd38cbe2eef0948b58673b146caa95402fhttps://git.kernel.org/stable/c/f299ee709fb45036454ca11e90cb2810fe771878https://git.kernel.org/stable/c/fc3e0076c1f82fe981d321e3a7bad4cbee542c19https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html