CVE ID : CVE-2021-47461
Published : May 22, 2024, 7:15 a.m. | 55 minutes ago
Description : 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 by exit_mmap() and at the same time userfaultfd_writeprotect() is called. The race was detected by KASAN on a development kernel, but it appears to be possible on vanilla kernels as well. Use mmget_not_zero() to prevent the race as done in other userfaultfd operations.
Severity: 0.0 | NA
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Published : May 22, 2024, 7:15 a.m. | 55 minutes ago
Description : 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 by exit_mmap() and at the same time userfaultfd_writeprotect() is called. The race was detected by KASAN on a development kernel, but it appears to be possible on vanilla kernels as well. Use mmget_not_zero() to prevent the race as done in other userfaultfd operations.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...
Full story here: