UBUNTU-CVE-2026-23053

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

UBUNTU-CVE-2026-23097

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

CVE-2025-71194

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock in waitcurrenttrans due to ignored transaction type When waitcurrenttrans is called during starttransaction, it currently waits for a blocked transaction without considering whether the given transaction type...

UBUNTU-CVE-2026-23050

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix a deadlock when returning a delegation during open Ben Coddington reports seeing a hang in the following stack trace: 0 ffffd0b50e1774e0 schedule at ffffffff9ca05415 1 ffffd0b50e177548 schedule at ffffffff9ca05717 2...

CVE-2026-23050

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix a deadlock when returning a delegation during open Ben Coddington reports seeing a hang in the following stack trace: 0 ffffd0b50e1774e0 schedule at ffffffff9ca05415 1 ffffd0b50e177548 schedule at ffffffff9ca05717 2...

UBUNTU-CVE-2025-71194

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock in waitcurrenttrans due to ignored transaction type When waitcurrenttrans is called during starttransaction, it currently waits for a blocked transaction without considering whether the given transaction type...

CVE-2026-23097 migrate: correct lock ordering for hugetlb file folios

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

CVE-2026-23097 migrate: correct lock ordering for hugetlb file folios

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

CVE-2026-23097

CVE-2026-23097: Linux kernel migrate path deadlock due to incorrect lock ordering between hugetlb folio_lock and i_mmap_rwsem. Specifically migrate_pages -> migrate_hugetlbs -> unmap_and_move_huge_page -> remove_migration_ptes -> __rmap_walk_file() acquires i_mmap_lock_read while anot...

CVE-2026-23097 migrate: correct lock ordering for hugetlb file folios

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

EUVD-2026-5445

In the Linux kernel, the following vulnerability has been resolved: migrate: correct lock ordering for hugetlb file folios Syzbot has found a deadlock analyzed by Lance Yang: 1 Task 5749: Holds foliolock, then tries to acquire immaprwsemread lock. 2 Task 5754: Holds immaprwsemwrite lock, then tri...

CVE-2026-23053

Summary (CVE-2026-23053): A Linux kernel vulnerability in NFS can deadlock during NFSv4.1 state recovery when kthreadd tries to reclaim memory by calling nfs_release_folio(). The deadlock prevents progress in nfs_release_folio(), which delays memory reclamation. The fix implemented is to initiate...

CVE-2026-23053

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

CVE-2026-23053

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

EUVD-2026-5493

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

CVE-2026-23053 NFS: Fix a deadlock involving nfs_release_folio()

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

CVE-2026-23053 NFS: Fix a deadlock involving nfs_release_folio()

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfsreleasefolio Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfsreleasefolio. The latter cannot make progres...

CVE-2026-23050 pNFS: Fix a deadlock when returning a delegation during open()

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix a deadlock when returning a delegation during open Ben Coddington reports seeing a hang in the following stack trace: 0 ffffd0b50e1774e0 schedule at ffffffff9ca05415 1 ffffd0b50e177548 schedule at ffffffff9ca05717 2...

EUVD-2026-5496

In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix a deadlock when returning a delegation during open Ben Coddington reports seeing a hang in the following stack trace: 0 ffffd0b50e1774e0 schedule at ffffffff9ca05415 1 ffffd0b50e177548 schedule at ffffffff9ca05717 2...

CVE-2026-23050

CVE-2026-23050 is a Linux kernel issue affecting pNFS: a deadlock when returning a delegation during open(). The provided documents describe a hang in the nfsv4 delegation return path where a state recovery waits for open() to finish delegations. Root cause: delegation return is waiting on a layo...