kernel: userfaultfd: fix a race between writeprotect and exit_mmap()

A possible race condition flaw was found in the Linux kernel. When a process exits, its virtual memory areas VMAs are removed by exitmmap, and at the same time, userfaultfdwriteprotect is called...

SUSE CVE-2024-41027

In the Linux kernel, the following vulnerability has been resolved: Fix userfaultfdapi to return EINVAL as expected Currently if we request a feature that is not set in the Kernel config we fail silently and return all the available features. However, the man page indicates we should return an...

DEBIAN-CVE-2024-41027

In the Linux kernel, the following vulnerability has been resolved: Fix userfaultfdapi to return EINVAL as expected Currently if we request a feature that is not set in the Kernel config we fail silently and return all the available features. However, the man page indicates we should return an...

UBUNTU-CVE-2024-41027

In the Linux kernel, the following vulnerability has been resolved: Fix userfaultfdapi to return EINVAL as expected Currently if we request a feature that is not set in the Kernel config we fail silently and return all the available features. However, the man page indicates we should return an...

CVE-2024-36881

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

SUSE CVE-2024-36881

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

DEBIAN-CVE-2024-36943

In the Linux kernel, the following vulnerability has been resolved: fs/proc/taskmmu: fix loss of young/dirty bits during pagemap scan makeuffdwppte was previously doing: pte = ptepgetptep; ptepmodifyprotstartptep; pte = ptemkuffdwppte; ptepmodifyprotcommitptep, pte; But if another thread accessed...

DEBIAN-CVE-2024-36881

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

CVE-2024-36881

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

UBUNTU-CVE-2024-36881

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

CVE-2024-36881 mm/userfaultfd: reset ptes when close() for wr-protected ones

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

CVE-2024-36881 mm/userfaultfd: reset ptes when close() for wr-protected ones

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

CVE-2024-36881 mm/userfaultfd: reset ptes when close() for wr-protected ones

In the Linux kernel, the following vulnerability has been resolved: mm/userfaultfd: reset ptes when close for wr-protected ones Userfaultfd unregister includes a step to remove wr-protect bits from all the relevant pgtable entries, but that only covered an explicit UFFDIOUNREGISTER ioctl, not a...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from the mm/userfaultfd module resetting write-protected ptes on close...

SUSE CVE-2021-47461

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a race between writeprotect and exitmmap A race is possible when a process exits, its VMAs are removed by exitmmap and at the same time userfaultfdwriteprotect is called. The race was detected by KASAN on a...

CVE-2021-47461

A possible race condition flaw was found in the Linux kernel. When a process exits, its virtual memory areas VMAs are removed by exitmmap, and at the same time, userfaultfdwriteprotect is called...

CVE-2021-47461

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a race between writeprotect and exitmmap A race is possible when a process exits, its VMAs are removed by exitmmap and at the same time userfaultfdwriteprotect is called. The race was detected by KASAN on a...

CVE-2021-47461

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a race between writeprotect and exitmmap A race is possible when a process exits, its VMAs are removed by exitmmap and at the same time userfaultfdwriteprotect is called. The race was detected by KASAN on a...

DEBIAN-CVE-2021-47461

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a race between writeprotect and exitmmap A race is possible when a process exits, its VMAs are removed by exitmmap and at the same time userfaultfdwriteprotect is called. The race was detected by KASAN on a...

CVE-2021-47461

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: fix a race between writeprotect and exitmmap A race is possible when a process exits, its VMAs are removed by exitmmap and at the same time userfaultfdwriteprotect is called. The race was detected by KASAN on a...