CVE-2026-31596

In the Linux kernel, the following vulnerability has been resolved: ocfs2: handle invalid dinode in ocfs2groupextend BUG kernel BUG at fs/ocfs2/resize.c:308! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP: 0010:ocfs2groupextend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308 Code: 8b8520ff ffff83f8 860f858...

EUVD-2026-25489

In the Linux kernel, the following vulnerability has been resolved: ocfs2: handle invalid dinode in ocfs2groupextend BUG kernel BUG at fs/ocfs2/resize.c:308! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP: 0010:ocfs2groupextend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308 Code: 8b8520ff ffff83f8 860f858...

CVE-2026-31596 ocfs2: handle invalid dinode in ocfs2_group_extend

In the Linux kernel, the following vulnerability has been resolved: ocfs2: handle invalid dinode in ocfs2groupextend BUG kernel BUG at fs/ocfs2/resize.c:308! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP: 0010:ocfs2groupextend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308 Code: 8b8520ff ffff83f8 860f858...

CVE-2026-31597

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix use-after-free in ocfs2fault when VMFAULTRETRY filemapfault may drop the mmaplock before returning VMFAULTRETRY, as documented in mm/filemap.c: "If our return value has VMFAULTRETRY set, it's because the mmaplock may b...

CVE-2026-31596

In the Linux kernel, the following vulnerability has been resolved: ocfs2: handle invalid dinode in ocfs2groupextend BUG kernel BUG at fs/ocfs2/resize.c:308! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP: 0010:ocfs2groupextend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308 Code: 8b8520ff ffff83f8 860f858...

CVE-2026-31597 ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix use-after-free in ocfs2fault when VMFAULTRETRY filemapfault may drop the mmaplock before returning VMFAULTRETRY, as documented in mm/filemap.c: "If our return value has VMFAULTRETRY set, it's because the mmaplock may b...

CVE-2026-31596

CVE-2026-31596 affects OCFS2 in the Linux kernel. The vulnerability stems from ocfs2_group_extend assuming a validated global bitmap inode block from ocfs2_inode_lock(), and BUG_ON() when the signature isn’t a dinode. A crafted filesystem can bypass structural validation via the JBD2 path, leadin...

PT-2026-34950

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur in the ocfs2 module due to an ABBA lock ordering violation between the ocfs2 unlink and ocfs2 dio end io write functions. The ocfs2 unlink function acquires the orph...

CVE-2026-31598: Improper Locking

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix possible deadlock between unlink and dioendiowrite ocfs2unlink takes orphan dir inodelock first and then ipallocsem, while in ocfs2dioendiowrite, it acquires these locks in reverse order. This creates an ABBA lock...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ocfs2 file system’s ocfs2groupextend function. This function assumes that the global bitmap f...

CVE-2026-31596: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ocfs2: handle invalid dinode in ocfs2groupextend BUG kernel BUG at fs/ocfs2/resize.c:308! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP: 0010:ocfs2groupextend+0x10aa/0x1ae0 fs/ocfs2/resize.c:308 Code: 8b8520ff ffff83f8 860f858...

PT-2026-34948

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the OCFS2 file system where the ocfs2 group extend function assumes that the global bitmap inode block returned from ocfs2 inode lock is already validated. In crafted...

CVE-2026-31597: Use After Free

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix use-after-free in ocfs2fault when VMFAULTRETRY filemapfault may drop the mmaplock before returning VMFAULTRETRY, as documented in mm/filemap.c: "If our return value has VMFAULTRETRY set, it's because the mmaplock may b...

Linux Kernel Security Vulnerabilities

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from inconsistent lock order between the unlink operation of the ocfs2 file system and the dioendiowrite...

Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the ocfs2 file system’s ocfs2fault function. When filemapfault returns VMFAULTRETRY, it may relea...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013612)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013612 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix memory leak in ocfs2mountvolume There is a memory leak reported by kmemleak:...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010994)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010994 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix defrag path triggering jbd2 ASSERT code path: ocfs2ioctlmoveextents ocfs2moveextents...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-006960)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006960 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix defrag path triggering jbd2 ASSERT code path: ocfs2ioctlmoveextents ocfs2moveextents...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013331)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013331 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix defrag path triggering jbd2 ASSERT code path: ocfs2ioctlmoveextents ocfs2moveextents...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013062)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013062 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: clear extent cache after moving/defragmenting extents The extent map cache can become stal...