powerpc/powernv/sriov: perform null check on iov before dereferencing iov
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
powerpc/powernv/sriov: perform null check on iov before dereferencing iov
Currently pointer iov is being dereferenced before the null check of iov
which can lead to null pointer dereference errors. Fix this by moving the
iov null check before the dereferencing.
Detected using cppcheck static analysis:
linux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either
the condition '!iov' is redundant or there is possible null pointer
dereference: iov. [nullPointerRedundantCheck]
num_vfs = iov->num_vfs;
^
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d