CVE-2022-50301

In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The "len" variable needs to be checked before the very first write. Otherwise if omap2_iommu_dump_ctx() with "bytes" less than 32 it is a buffer overflow. 2) The snprintf() function returns the number of bytes that *would* have been copied if there were enough space. But we want to know the number of bytes which were *actually* copied so use scnprintf() instead.

• linux linux kernel (>= 3.19 < 4.9.331) • linux linux kernel (>= 4.10 < 4.14.296) • linux linux kernel (>= 4.15 < 4.19.262) • linux linux kernel (>= 4.20 < 5.4.220) • linux linux kernel (>= 5.5 < 5.10.150) • linux linux kernel (>= 5.11 < 5.15.75) • linux linux kernel (>= 5.16 < 5.19.17) • linux linux kernel (>= 6.0 < 6.0.3)