CVE-2026-72225

A flaw was found in the Linux kernel's jbd2 journaling layer. An integer underflow vulnerability in the jbd2journalinitializefastcommit function occurs when validating journal capacity. This underflow can corrupt critical journal metadata, such as jlast, jfcfirst, and jfree, leading to a journal...

CVE-2026-72225

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2journalinitializefastcommit jbd2journalinitializefastcommit validates journal capacity by checking journal-jlast - numfcblks JBD2MINJOURNALBLOCKS. Both jlast and numfcblks are unsigned, so when...

UBUNTU-CVE-2026-72225

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2journalinitializefastcommit jbd2journalinitializefastcommit validates journal capacity by checking journal-jlast - numfcblks JBD2MINJOURNALBLOCKS. Both jlast and numfcblks are unsigned, so when...

EUVD-2026-59124

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2journalinitializefastcommit jbd2journalinitializefastcommit validates journal capacity by checking journal-jlast - numfcblks JBD2MINJOURNALBLOCKS. Both jlast and numfcblks are unsigned, so when...

CVE-2026-72225

The CVE-2026-72225 issue is in the Linux kernel’s journal code (jbd2). A numeric underflow occurs in jbd2_journal_initialize_fast_commit() when calculating journal capacity with (journal->j_last - num_fc_blks) where both operands are unsigned; if num_fc_blks > j_last, the subtraction wraps ...

CVE-2026-72225 jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit()

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2journalinitializefastcommit jbd2journalinitializefastcommit validates journal capacity by checking journal-jlast - numfcblks JBD2MINJOURNALBLOCKS. Both jlast and numfcblks are unsigned, so when...

CVE-2026-72225 jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit()

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2journalinitializefastcommit jbd2journalinitializefastcommit validates journal capacity by checking journal-jlast - numfcblks JBD2MINJOURNALBLOCKS. Both jlast and numfcblks are unsigned, so when...

Linux Distros Unpatched Vulnerability : CVE-2026-72225

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jbd2: fix integer underflow in jbd2journalinitializefastcommit jbd2journalinitializefastcommit validates journal capacity by checking journal-jlast - numfcblks...

PT-2026-72413

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix integer underflow in jbd2 journal initialize fast commit jbd2 journal initialize fast commit validates journal capacity by checking journal-j last - num fc blks JBD2 MIN JOURNAL BLOCKS. Both j last and num fc blks are...

Siemens SIMATIC S7-1500 CPU 1518 MFP Improper Input Validation (CVE-2025-39782)

In the Linux kernel, the following vulnerability has been resolved: jbd2: prevent softlockup in jbd2logdocheckpoint Both jbd2logdocheckpoint and jbd2journalshrinkcheckpointlist periodically release jlistlock after processing a batch of buffers to avoid long hold times on the jlistlock. However,...

The vulnerability of the jbd2_journal_get_create_access() function in the fs/jbd2/transaction.c file of the Linux kernel’s file system allows a attacker to cause a service failure.

The vulnerability of the jbd2journalgetcreateaccess function in the fs/jbd2/transaction.c file of the Linux kernel’s file system is related to the distribution of resources without any restrictions or regulations. Exploiting this vulnerability could allow a attacker to cause service failures...

Linux Distros Unpatched Vulnerability : CVE-2026-46061

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a fs/jbd2: use sleeping version of findgetblock changed jbd2journalcancelrevoke to use...

CVE-2026-46061

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a "fs/jbd2: use sleeping version of findgetblock" changed jbd2journalcancelrevoke to use findgetblocknonatomic which holds the folio lock instead of iprivatelock. Th...

CVE-2026-46080 ocfs2: split transactions in dio completion to avoid credit exhaustion

In the Linux kernel, the following vulnerability has been resolved: ocfs2: split transactions in dio completion to avoid credit exhaustion During ocfs2 dio operations, JBD2 may report warnings via following call trace: ocfs2dioendiowrite ocfs2markextentwritten ocfs2changeextentflag ocfs2splitexte...

CVE-2026-46061 jbd2: fix deadlock in jbd2_journal_cancel_revoke()

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a "fs/jbd2: use sleeping version of findgetblock" changed jbd2journalcancelrevoke to use findgetblocknonatomic which holds the folio lock instead of iprivatelock. Th...

EUVD-2026-32443

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a "fs/jbd2: use sleeping version of findgetblock" changed jbd2journalcancelrevoke to use findgetblocknonatomic which holds the folio lock instead of iprivatelock. Th...

CVE-2026-46061

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a "fs/jbd2: use sleeping version of findgetblock" changed jbd2journalcancelrevoke to use findgetblocknonatomic which holds the folio lock instead of iprivatelock. Th...

CVE-2026-46061

Summary: CVE-2026-46061 is a Linux kernel issue in jbd2/journal handling that can cause an ABBA deadlock when filesystem blocksize is smaller than pagesize. The root cause is a lock-order conflict introduced by switching to __find_get_block_nonatomic() which can hold folio and buffer locks in the...

CVE-2026-46061

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix deadlock in jbd2journalcancelrevoke Commit f76d4c28a46a "fs/jbd2: use sleeping version of findgetblock" changed jbd2journalcancelrevoke to use findgetblocknonatomic which holds the folio lock instead of iprivatelock. Th...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from a deadlock caused by the jbd2journalcancelrevoke function in jbd2. This issue may lead to an ABBA...