btrfs_fixes

btrfsfixes: Custom BTRFS Repair Tools Custom tools written during recovery of a 12TB multi-device BTRFS pool with severe extent tree corruption that the native commands btrfs check --repair, --init-extent-tree, etc. could not repair. SeeINCIDENT-ANALYSIS.md for a structured case study of the...

SUSE CVE-2026-90260

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: don't clobber the extent buffer when zeroing it out On a zoned filesystem a freed-but-still-dirty tree block is written out as zeros EXTENTBUFFERZONEDZEROOUT only to keep the zone write pointer advancing...

CVE-2026-90260

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: don't clobber the extent buffer when zeroing it out On a zoned filesystem a freed-but-still-dirty tree block is written out as zeros EXTENTBUFFERZONEDZEROOUT only to keep the zone write pointer advancing...

EUVD-2026-81853

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: don't clobber the extent buffer when zeroing it out On a zoned filesystem a freed-but-still-dirty tree block is written out as zeros EXTENTBUFFERZONEDZEROOUT only to keep the zone write pointer advancing...

PT-2026-94608

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the btrfs zoned filesystem where a freed-but-still-dirty tree block is written as zeros to maintain the zone write pointer. The btree csum one bio function previously...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed an issue where an incorrect return value was returned after changing a leaf in lookupextentdataref. After the commit 1618aa3c2e01 “btrfs: simplified return variables in lookupextentdataref“”, the err and ret variable...

Linux Distros Unpatched Vulnerability : CVE-2026-31666

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - btrfs: fix incorrect return value after changing leaf in lookupextentdataref After commit 1618aa3c2e01 btrfs: simplify return variables in lookupextentdataref,...

CVE-2026-31666

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect return value after changing leaf in lookupextentdataref After commit 1618aa3c2e01 "btrfs: simplify return variables in lookupextentdataref", the err and ret variables were merged into a single ret variable...

CVE-2026-31666

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect return value after changing leaf in lookupextentdataref After commit 1618aa3c2e01 "btrfs: simplify return variables in lookupextentdataref", the err and ret variables were merged into a single ret variable...

CVE-2026-31666: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect return value after changing leaf in lookupextentdataref After commit 1618aa3c2e01 "btrfs: simplify return variables in lookupextentdataref", the err and ret variables were merged into a single ret variable...

PT-2026-35018

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the btrfs component where the lookup extent data ref function returns an incorrect value after changing a leaf. Specifically, when btrfs next leaf returns 0, the ret...

Azure Linux 3.0 Security Update: kernel (CVE-2024-46840)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-46840 advisory. - In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == ...

CVE-2025-21658

In the Linux kernel, the following vulnerability has been resolved: btrfs: avoid NULL pointer dereference if no valid extent tree BUG Syzbot reported a crash with the following call trace: BTRFS info device loop0: scrub: started on devid 1 BUG: kernel NULL pointer dereference, address:...

CVE-2024-46840

In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUGONrefs == 0, which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walkdownproc we...

CVE-2024-46840 btrfs: clean up our handling of refs == 0 in snapshot delete

In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUGONrefs == 0, which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walkdownproc we...

CVE-2024-46840 btrfs: clean up our handling of refs == 0 in snapshot delete

In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUGONrefs == 0, which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walkdownproc we...

EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-2221)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The kernel package contains the Linux kernel vmlinuz, the core of any Linux operating system. The kernel handles the basic functions of the...