CVE-2026-68422 btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix root leak if its reloc root is unexpected in mergerelocroots If we have an unexpected relocroot for our root, we jump to the out label but never drop the reference we obtained for root, resulting in a leak. Add a missi...

CVE-2026-68422

The CVE-2026-68422 entry describes a Linux kernel btrfs issue in the merge_reloc_roots path where an unexpected reloc_root could skip releasing the root reference, causing a memory leak. Affected component: btrfs in the Linux kernel; root handling during relocation merge. Root cause: missing btrf...

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

In btrfsgetrootref in fs/btrfs/disk-io.c within the Linux kernel, up to version 6.7.1, there may be an assertion failure and a crash occurring because a subvolume can be read out too early after its root item is inserted during subvolume creation...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates from a BUGON triggered when merging root nodes when the root entry in btrfs contains a non-zero dropprogress...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003904)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003904 advisory. btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero. Tenable has...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000418)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000418 advisory. btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero. Tenable has...

CVE-2024-56774

In the Linux kernel, the following vulnerability has been resolved: btrfs: add a sanity check for btrfs root in btrfssearchslot Syzbot reports a null-ptr-deref in btrfssearchslot. The reproducer is using rescue=ibadroots, and the extent tree root is corrupted thus the extent tree is NULL. When...

SUSE CVE-2019-19036

btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero...

The vulnerability of the btrfs_root_node() function in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the btrfsrootnode function in the Linux operating system’s kernel is related to the assignment of a null pointer. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the btrfs_root_node function (fs/btrfs/ctree.c) in the Linux kernel allows a hacker to trigger a service failure.

The vulnerability of the btrfsrootnode function fs/btrfs/ctree.c in the Linux kernel is related to the assignment of a null pointer. Exploiting this vulnerability allows an attacker to cause a service failure...

CVE-2019-19036

btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero...

DEBIAN-CVE-2019-19036

btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero...

CVE-2019-19036

btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero...

UBUNTU-CVE-2019-19036

btrfsrootnode in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcudereferenceroot-node can be zero...

Linux kernel null pointer dereference vulnerability (CNVD-2019-42385)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A null pointer dereference vulnerability exists in btrfsrootnode in fs/btrfs/ctree.c in Linux kernel 5.3.12 and...

DEBIAN-CVE-2018-14612

An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in btrfsrootnode when mounting a crafted btrfs image, because of a lack of chunk block group mapping validation in btrfsreadblockgroups in fs/btrfs/extent-tree.c, and a lack of empty-tree checks i...

Linux kernel invalid pointer dereference vulnerability (CNVD-2018-24481)

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the 'btrfsrootnode' function in Linux kernel version 4.17.10 and earlier. An attacker can exploit this vulnerability to cause a deni...