USN-6951-4: Linux kernel (BlueField) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - M68K architecture; - User-Mode Linux UML; - x86 architecture; - Accessibility subsystem; -...

CVE-2022-48897

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

CVE-2022-48892

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

DEBIAN-CVE-2022-48892

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

CVE-2022-48892

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

CVE-2022-48897

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

UBUNTU-CVE-2022-48892

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

UBUNTU-CVE-2022-48897

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

CVE-2022-48897 arm64/mm: fix incorrect file_map_count for invalid pmd

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

CVE-2022-48897

CVE-2022-48897 affects the Linux kernel arm64 memory management, specifically a bug where pmd_leaf could be considered valid even when the PMD is invalid due to pmd_present_invalid. This caused file_map_count to be decremented and then incremented in multiple code paths, ultimately triggering a B...

CVE-2022-48897 arm64/mm: fix incorrect file_map_count for invalid pmd

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

CVE-2022-48897 arm64/mm: fix incorrect file_map_count for invalid pmd

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

CVE-2022-48897

In the Linux kernel, the following vulnerability has been resolved: arm64/mm: fix incorrect filemapcount for invalid pmd The page table check trigger BUGON unexpectedly when split hugepage: ------------ cut here ------------ kernel BUG at mm/pagetablecheck.c:119! Internal error: Oops - BUG:...

CVE-2022-48892 sched/core: Fix use-after-free bug in dup_user_cpus_ptr()

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

CVE-2022-48892

CVE-2022-48892 : Linux kernel sched/core fix for a use-after-free in dup_user_cpus_ptr(). The vulnerability existed due to dup_user_cpus_ptr() accessing user_cpus_ptr without proper locking, racing with fork() and the clearing of user_cpus_ptr during set_cpus_allowed_ptr_locked(), primarily affec...

CVE-2022-48892 sched/core: Fix use-after-free bug in dup_user_cpus_ptr()

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

CVE-2022-48892

In the Linux kernel, the following vulnerability has been resolved: sched/core: Fix use-after-free bug in dupusercpusptr Since commit 07ec77a1d4e8 "sched: Allow task CPU affinity to be restricted on asymmetric systems", the setting and clearing of usercpusptr are done under pilock for arm64...

Ubuntu 20.04 LTS : Linux kernel (HWE) vulnerabilities (USN-6950-4)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6950-4 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

Ubuntu 20.04 LTS : Linux kernel (BlueField) vulnerabilities (USN-6951-4)

"The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6951-4 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws i...

Ubuntu: Security Advisory (USN-6951-3)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...