Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989248)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989248 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix abort logic in btrfsreplacefileextents Error injection testing uncovered a case where...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-989425)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989425 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota rescan and disable leading to NULL pointer deref If we have one ta...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989578)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989578 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix quota root leak after quota disable failure If during the quota disable we fai...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989606)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989606 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between quota disable and qgroup rescan worker Quota disable ioctl starts a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989478)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989478 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount During the...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988653)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988653 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory leak in addinoderef Line 1169 3 allocates a memory chunk for victimname by...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988680)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988680 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when stopping a space reclaim worker Often when running generic/5...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-990181)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990181 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve overflow the qgroup limit We use extentchangeset-byteschanged in...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990212)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990212 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix information leak in btrfsioctllogicaltoino Syzbot reported the following information...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988743)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988743 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve overflow the qgroup limit We use extentchangeset-byteschanged in...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989652)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989652 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix memory ordering between normal and ordered work functions Ordered work functions aren'...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990188)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990188 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount During the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: subpage: keep the TOWRITE tag until the folio is cleaned The btrfssubpagesetwriteback function calls foliostartwriteback the first time a folio is written back. It also clears the PAGECACHETAGTOWRITE tag, even if there...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Aborting transactions when an unexpected extent buffer generation occurs at btrfscopyroot. If we detect an unexpected generation of the extent buffer during the cloning process at btrfscopyroot, we simply call WARNON inste...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not allow relocation of partially dropped subvolumes BUG There is an internal report indicating that a balance-related transaction aborted, with the following call trace: item 85 key 594509824 169 0 itemoff 12599 itemsi...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Correctly handled csum tree errors with rescue=ibadroots. BUG There is a syzbot-based reproducer that can cause the kernel to crash. The call trace is as follows with some debug output added: DEBUG: rescue=ibadroots...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix race between quota disable and quota rescan ioctl There is a race between a task that disables quotas and another task that runs the rescan ioctl. This can lead to a use-after-free of qgroup records from the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: The folio mapping is checked after unlocking in relocateonefolio. When we call btrfsreadfolio to update a folio, we unlock the folio. As a result, another thread can modify the mapping such as removing it using invalidate...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: perform proper folio cleanup when cowfilerange fails BUG When testing with COW fixup marked as BUGON this involves the new pinuserpages change, which should not result in new out-of-band dirty pages, I encountered a crash...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a race condition related to block group refcounts in btrfscreatependingblockgroups. The creation of block groups occurs in two phases, resulting in a somewhat unintuitive behavior: A block group can be...