Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

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,...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: jbd2: Fixed integer underflow in jbd2journalinitializefastcommit. jbd2journalinitializefastcommit validates the journal capacity by checking whether journal-jlast - numfcblks JBD2MINJOURNALBLOCKS. Both jlast and numfcblks are...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jbd2: Added a miss release buffer head in fcdoonepass. In fcdoonepass, a miss release buffer head is added after use, which can lead to a reference count leak...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: jbd2: fixed data-race and null-ptr-deref in jbd2journaldirtymetadata Since handle-htransaction may be a NULL pointer, we should change it by calling ishandleabortedhandle before dereferencing it. The following data-race was...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Do not set the encryption key during the jbd2 transaction. A commit labeled “a80f7fcf1867” “ext4: fixup ext4fctrack functions’ signature” addressed this issue. The scope of the transaction in ext4unlink was extended too far...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: jbd2: Check ‘jh-btransaction’ before removing it from the checkpoint. The following process will corrupt the ext4 image: Step 1: jbd2journalcommittransaction jbd2journalinsertcheckpointjh, committransaction // Place jh into...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Fixed the nullptrdereference error when the journal load failed. During the mounting process, if the journal function fails due to a too-short journal, it causes jbd2journalload to fail with a NULL jsbbuffer. Subsequently,...

ROS-20260929-73-0093

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 a service failure...

SUSE CVE-2026-93268

In the Linux kernel, the following vulnerability has been resolved: ext4: skip extra isize expansion during mount to prevent deadlock ext4trytoexpandextraisize is called from ext4markinodedirty while holding an active jbd2 handle. During mount !SBACTIVE, the expand path may move xattrs to externa...

DEBIAN-CVE-2026-93268

In the Linux kernel, the following vulnerability has been resolved: ext4: skip extra isize expansion during mount to prevent deadlock ext4trytoexpandextraisize is called from ext4markinodedirty while holding an active jbd2 handle. During mount !SBACTIVE, the expand path may move xattrs to externa...

UBUNTU-CVE-2026-93268

In the Linux kernel, the following vulnerability has been resolved: ext4: skip extra isize expansion during mount to prevent deadlock ext4trytoexpandextraisize is called from ext4markinodedirty while holding an active jbd2 handle. During mount !SBACTIVE, the expand path may move xattrs to externa...

CVE-2026-93268

In the Linux kernel, the following vulnerability has been resolved: ext4: skip extra isize expansion during mount to prevent deadlock ext4trytoexpandextraisize is called from ext4markinodedirty while holding an active jbd2 handle. During mount !SBACTIVE, the expand path may move xattrs to externa...

SUSE CVE-2026-89566

In the Linux kernel, the following vulnerability has been resolved: jbd2: check needresched when skipping busy checkpoint buffers journalshrinkonecplist skips busy checkpoint buffers when called with JBD2SHRINKBUSYSKIP. The continue statement on this path also skips the needresched check at the e...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: jbd2: fixed a potential use-after-free issue in jbd2fcwaitbufs. In jbd2fcwaitbufs, using bh after referencing the buffer’s head count may lead to a use-after-free. Therefore, ensure that the buffer is updated before referencing i...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: jbd2: Stop waiting for space when jbd2cleanupjournaltail returns an error. In jbd2logwaitforspace, we may call jbd2cleanupjournaltail to reclaim some journal space. However, if an error occurs during the execution of...

SUSE CVE-2026-89567

In the Linux kernel, the following vulnerability has been resolved: jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against nrtoscan. Busy buffers therefore do not consume the scan budget. If a...

Linux Distros Unpatched Vulnerability : CVE-2026-89567

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jbd2: bound shrinker scans by examined checkpoint buffers The jbd2 shrinker currently accounts only checkpoint buffers that it successfully releases against...

Linux Distros Unpatched Vulnerability : CVE-2026-89566

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - jbd2: check needresched when skipping busy checkpoint buffers journalshrinkonecplist skips busy checkpoint buffers when called with JBD2SHRINKBUSYSKIP. The...

CVE-2026-89567

A flaw was found in the Linux kernel's jbd2 shrinker. This component, which manages journal buffers, does not correctly account for busy checkpoint buffers. This oversight can cause the shrinker to hold a critical system lock for an extended period when processing many busy buffers. The prolonged...

CVE-2026-89566

A flaw was found in the Linux kernel's jbd2 component. When the kernel's journaling block device jbd2 processes busy checkpoint buffers, it can skip a crucial rescheduling check. This oversight can lead to prolonged holding of a critical lock, causing other central processing units CPUs to wait...