Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:userfaultfd: fix a race between writeprotect and exit_mmap()A race is possible when a process exits, its VMAs are removed byexit_mmap() and at the same time userfaultfd_writeprotect() is called.The race was detected by KASAN on a development kernel, but it appearsto be possible on vanilla kernels as well.Use mmget_not_zero() to prevent the race as done in other userfaultfdoperations.
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- https://github.com/fkie-cad/nvd-json-data-feeds