CVE-2026-97415

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate names in ROOTREF and ROOTBACKREF ROOTREF and ROOTBACKREF items contain a struct btrfsrootref followed by the subvolume name. Several readers assume that this layout is already valid and then use the...

CVE-2026-93813

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODEREF's namelen BUG A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 PF: supervisor write access in kernel mode PF:...

CVE-2026-97415 btrfs: tree-checker: validate names in ROOT_REF and ROOT_BACKREF

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate names in ROOTREF and ROOTBACKREF ROOTREF and ROOTBACKREF items contain a struct btrfsrootref followed by the subvolume name. Several readers assume that this layout is already valid and then use the...

EUVD-2026-86028

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate names in ROOTREF and ROOTBACKREF ROOTREF and ROOTBACKREF items contain a struct btrfsrootref followed by the subvolume name. Several readers assume that this layout is already valid and then use the...

CVE-2026-97415

The Linux kernel contains a vulnerability in the BTRFS file system where ROOT_REF and ROOT_BACKREF items are not properly validated. Because several readers assume the layout is valid and use the on-disk name length directly, a corrupted item can cause these readers to access memory outside the i...

CVE-2026-93813 btrfs: tree-checker: validate INODE_REF's namelen

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODEREF's namelen BUG A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 PF: supervisor write access in kernel mode PF:...

CVE-2026-93813

The Linux kernel contains a vulnerability in the btrfs file system where a crafted image with a corrupted INODE_REF item can trigger an out-of-boundary access. This occurs because the namelen can exceed the BTRFS_NAME_LEN limit of 255, while the allocated memory for @name remains only 255 bytes. ...

EUVD-2026-86201

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODEREF's namelen BUG A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 PF: supervisor write access in kernel mode PF:...

CVE-2026-97415

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate names in ROOTREF and ROOTBACKREF ROOTREF and ROOTBACKREF items contain a struct btrfsrootref followed by the subvolume name. Several readers assume that this layout is already valid and then use the...

CVE-2026-93813

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODEREF's namelen BUG A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 PF: supervisor write access in kernel mode PF:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: Rejects invalid reloc tree root keys with stack dump. BUG Syzbot reported a crash that an ASSERT was triggered inside preparetomerge. This ASSERT ensures that the reloc tree is properly pointed back by its subvolume tree...

CVE-2026-64567

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

UBUNTU-CVE-2026-64567

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

CVE-2026-64567

The CVE-2026-64567 vulnerability affects the Linux kernel’s btrfs free-space-cache loading. The issue stems from loading a v1 free-space cache where num_entries can exceed the available pages, allowing io_ctl_check_crc to advance past the end of the pages[] array. This leads to a slab-out-of-boun...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003035)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003035 advisory. An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in ioctlmappage when mounting and operating a crafted btrfs imag...

SUSE CVE-2023-53618

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump BUG Syzbot reported a crash that an ASSERT got triggered inside preparetomerge. That ASSERT makes sure the reloc tree is properly pointed back by its subvolume tree. CAUS...

CVE-2023-53618

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump BUG Syzbot reported a crash that an ASSERT got triggered inside preparetomerge. That ASSERT makes sure the reloc tree is properly pointed back by its subvolume tree. CAUS...

UBUNTU-CVE-2023-53618

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump BUG Syzbot reported a crash that an ASSERT got triggered inside preparetomerge. That ASSERT makes sure the reloc tree is properly pointed back by its subvolume tree. CAUS...

EUVD-2025-32818

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump BUG Syzbot reported a crash that an ASSERT got triggered inside preparetomerge. That ASSERT makes sure the reloc tree is properly pointed back by its subvolume tree. CAUS...

CVE-2023-53618 btrfs: reject invalid reloc tree root keys with stack dump

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump BUG Syzbot reported a crash that an ASSERT got triggered inside preparetomerge. That ASSERT makes sure the reloc tree is properly pointed back by its subvolume tree. CAUS...