Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098706)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098706 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix race between quota disable and quota rescan ioctl There's a race between a ta...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098782)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098782 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction abort when snapshotting received subvolumes Currently a user can trigger ...

The vulnerability of the `range_is_hole_in_parent()` function in the `fs/btrfs/send.c` module of the btrfs file system in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the rangeisholeinparent function in the fs/btrfs/send.c module of the btrfs file system in the Linux operating system is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the log_conflict_inodes() function in the fs/btrfs/tree-log.c file of the Btrfs file system’s kernel in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the logconflictinodes function in the fs/btrfs/tree-log.c file of the Btrfs file system in the Linux operating system is related to synchronization errors. Exploiting this vulnerability can allow an attacker to cause service failures...

The vulnerability of the lookup_extent_data_ref() function in the fs/btrfs/extent-tree.c file of the Btrfs file system in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the lookupextentdataref function in the fs/btrfs/extent-tree.c file of the Btrfs file system in the Linux operating system is related to the return of incorrect code states. Exploitation of this vulnerability may allow an attacker to compromise the confidentiality, integrity,...

CVE-2026-74723

A flaw was found in the Linux kernel. A local attacker could craft a btrfs image with a malformed LZO compressed file extent. This could lead to an out-of-bounds read during decompression, potentially causing a denial of service...

CVE-2026-74722

A flaw was found in the Linux kernel's btrfs filesystem. A local attacker could exploit a memory leak in the btrfsdoencodedwrite function. This occurs because an extent changeset is not properly freed before the function returns. Successful exploitation of this memory leak could lead to a denial ...

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

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Do not abort the filesystem when attempting to take a snapshot of a deleted subvolume. If the source file descriptor for the snapshot ioctl refers to a deleted subvolume, the following abort occurs: BTRFS: Transaction...

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

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not ASSERT if the newly created subvolume has already been read. BUG There is a syzbot crash, triggered by the ASSERT during subvolume creation: Assertion failed: !anondev, in fs/btrfs/disk-io.c:1319 ----------- kernel...

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

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Handled the chunk tree lookup error in btrfsrelocatesyschunks. The unhandled case in the btrfsrelocatesyschunks loop is a corruption. This can only occur under two impossible conditions: - First, the search key is set t...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: HID: amdsfh: Switch to device-managed dmamalloccoherent Using the device-managed version simplifies cleanup in the probe function. This also ensures proper cleanup, which helps to resolve memory errors, page faults, btrfs...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: In the case of a zoned filesystem, there’s a memory leak that occurs after finding a block group containing super blocks. In the excludesuperstripes function, if we encounter a block group that contains super blocks, and w...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed a deadlock that occurred when cloning inline extents and using qgroups. There are a few exceptional cases where cloning an inline extent requires copying the inline extent data into a page of the destination inode...

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

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Do not free the qgroup space unless specified. Boris noticed during his simple quota testing that there was a leak caused by Sweet Tea’s change to the subvol create function, which would stop a transaction commit. This...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: setpageextentmapped after readfolio in btrfscontexpand. While attempting to run the subpage block size tests, I encountered the following panic in generic/476: Assertion failed: PagePrivatepage && page-private, in...

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

A use-after-free flaw was discovered in btrfssearchslot in fs/btrfs/ctree.c within btrfs in the Linux Kernel. This flaw allows an attacker to crash the system and potentially cause a kernel information leak...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed leaks in the ulist structure during error paths in the qgroup self tests. In the testnosharedqgroup and testmultiplerefs qgroup self tests, if we fail to add the tree reference, remove the extent item, or remove t...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a race condition between quota rescan and disabling quotas, which could lead to a NULL pointer derefrence. If one task attempts to start the quota rescan worker while another task attempts to disable quotas, we can e...

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: btrfs: added handling for RAID1C23/DUP to btrfsreduceallocprofile Callers of btrfsreduceallocprofile expect it to return exactly one allocation profile flag. If this is not done, it may ultimately result in a WARNON and remount-r...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: removed BUGON functions in addnewfreespace In addnewfreespace, there were BUGON functions designed to handle any failures in adding free space to the in-memory free space cache. Such failures are mostly due to ENOMEM,...