UBUNTU-CVE-2022-50534

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use last transaction's pmd-root when commit failed Recently we found a softlock up problem in dm thin pool btree lookup code due to corrupted metadata: Kernel panic - not syncing: softlockup: hung tasks CPU: 7 PID: 26692...

UBUNTU-CVE-2023-53681

In the Linux kernel, the following vulnerability has been resolved: bcache: Fix bchbtreenodealloc to make the failure behavior consistent In some specific situations, the return value of bchbtreenodealloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a...

CVE-2023-53681 bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent

In the Linux kernel, the following vulnerability has been resolved: bcache: Fix bchbtreenodealloc to make the failure behavior consistent In some specific situations, the return value of bchbtreenodealloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a...

CVE-2023-53681

In the Linux kernel, the following vulnerability has been resolved: bcache: Fix bchbtreenodealloc to make the failure behavior consistent In some specific situations, the return value of bchbtreenodealloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a...

EUVD-2025-32766

In the Linux kernel, the following vulnerability has been resolved: bcache: Fix bchbtreenodealloc to make the failure behavior consistent In some specific situations, the return value of bchbtreenodealloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a...

CVE-2023-53681

CVE-2023-53681 concerns a bug in the Linux kernel’s bcache subsystem. According to connected sources, in some scenarios the return value of __bch_btree_node_alloc may be NULL, which could lead to a potential NULL pointer dereference in the caller chain (examples mention btree_split, __bch_btree_n...

CVE-2022-50534 dm thin: Use last transaction's pmd->root when commit failed

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use last transaction's pmd-root when commit failed Recently we found a softlock up problem in dm thin pool btree lookup code due to corrupted metadata: Kernel panic - not syncing: softlockup: hung tasks CPU: 7 PID: 26692...

EUVD-2025-32837

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use last transaction's pmd-root when commit failed Recently we found a softlock up problem in dm thin pool btree lookup code due to corrupted metadata: Kernel panic - not syncing: softlockup: hung tasks CPU: 7 PID: 26692...

CVE-2022-50534

CVE-2022-50534 (Linux kernel, dm thin) : A vulnerability in the dm thin component can trigger an ABBA deadlock between shrinker_rwsem and pmd-root_lock when concurrent drop cache operations and dm thin worker threads run. This may lead to a broken btree with mixed fresh/stale nodes and cause a sy...

CVE-2022-50534 dm thin: Use last transaction's pmd->root when commit failed

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use last transaction's pmd-root when commit failed Recently we found a softlock up problem in dm thin pool btree lookup code due to corrupted metadata: Kernel panic - not syncing: softlockup: hung tasks CPU: 7 PID: 26692...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-986627)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986627 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix general protection fault in nilfsbtreeinsert If nilfs2 reads a corrupted disk image a...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-986467)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986467 advisory. In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalancechildren Move dmtmunlock after dmtmdec. Tenable h...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986764)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986764 advisory. In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalancechildren Move dmtmunlock after dmtmdec. Tenable h...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986547)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986547 advisory. In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalancechildren Move dmtmunlock after dmtmdec. Tenable h...

Linux kernel 安全漏洞

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 stems from an uninitialized bchbtreenodealloc return value, which could result in a null pointer dereference...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986585)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986585 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix general protection fault in nilfsbtreeinsert If nilfs2 reads a corrupted disk image a...

PT-2025-41039

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the dm thin pool btree lookup code that can lead to a softlockup. This issue arises from corrupted metadata, potentially causing an infinite loop...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987314)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987314 advisory. In the Linux kernel, the following vulnerability has been resolved: dm btree remove: assign newroot only when removal succeeds removeraw in dmbtreeremove may fail du...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-383904)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-383904 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential oob read in nilfsbtreecheckdelete The function nilfsbtreecheckdelete, which...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986309)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986309 advisory. In the Linux kernel, the following vulnerability has been resolved: dm btree remove: assign newroot only when removal succeeds removeraw in dmbtreeremove may fail du...