CVE-2026-31598

Summary of CVE-2026-31598 (ocfs2 deadlock) : In the Linux kernel OCFS2, a potential deadlock arises from ABBA lock ordering between unlink and dio_end_io_write. The path in unlink acquires inode_lock (orphan_dir_inode) before ip_alloc_sem, while dio_end_io_write acquires ip_alloc_sem first, then ...

CVE-2026-31598

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...

CVE-2026-31598 ocfs2: fix possible deadlock between unlink and dio_end_io_write

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...

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...

EUVD-2026-25485

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't stable unless kvm-lock is held or KVM can guarantee KVMSEVINIT2 has...

CVE-2026-31592

CVE-2026-31592 affects the Linux kernel KVM subsystem. The vulnerability arises when sev_mem_enc_register_region() is not protected by kvm->lock before sev_guest() is checked, risking state corruption if KVM_INIT{2} fails and an uninitialized sev->regions_list is touched, potentially causin...

CVE-2026-31592 KVM: SEV: Protect *all* of sev_mem_enc_register_region() with kvm->lock

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't stable unless kvm-lock is held or KVM can guarantee KVMSEVINIT2 has...

CVE-2026-31592

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't stable unless kvm-lock is held or KVM can guarantee KVMSEVINIT2 has...

CVE-2026-31592 KVM: SEV: Protect *all* of sev_mem_enc_register_region() with kvm->lock

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Protect all of sevmemencregisterregion with kvm-lock Take and hold kvm-lock for before checking sevguest in sevmemencregisterregion, as sevguest isn't stable unless kvm-lock is held or KVM can guarantee KVMSEVINIT2 has...

CVE-2026-31589

The CVE-2026-31589 issue affects the Linux kernel memory management in the mm path related to folio_unmap_invalidate. The vulnerability arises when the system calls free_folio() directly, instead of loading the free_folio function pointer after obtaining a mapping reference or lock, potentially l...

CVE-2026-31589

In the Linux kernel, the following vulnerability has been resolved: mm: call -freefolio directly in foliounmapinvalidate We can only call filemapfreefolio if we have a reference to or hold a lock on the mapping. Otherwise, we've already removed the folio from the mapping so it no longer pins the...

CVE-2026-31589

In the Linux kernel, the following vulnerability has been resolved: mm: call -freefolio directly in foliounmapinvalidate We can only call filemapfreefolio if we have a reference to or hold a lock on the mapping. Otherwise, we've already removed the folio from the mapping so it no longer pins the...

CVE-2026-31583

In the Linux kernel, the following vulnerability has been resolved: media: em28xx: fix use-after-free in em28xxv4l2open em28xxv4l2open reads dev-v4l2 without holding dev-lock, creating a race with em28xxv4l2init's error path and em28xxv4l2fini, both of which free the em28xxv4l2 struct and set...

CVE-2026-31583

In the Linux kernel, the following vulnerability has been resolved: media: em28xx: fix use-after-free in em28xxv4l2open em28xxv4l2open reads dev-v4l2 without holding dev-lock, creating a race with em28xxv4l2init's error path and em28xxv4l2fini, both of which free the em28xxv4l2 struct and set...

CVE-2026-31579

In the Linux kernel, the following vulnerability has been resolved: wireguard: device: use exitrtnl callback instead of manual rtnllock in preexit wgnetnspreexit manually acquires rtnllock inside the pernet .preexit callback. This causes a hung task when another thread holds rtnlmutex - the...

CVE-2026-31579

In the Linux kernel, the following vulnerability has been resolved: wireguard: device: use exitrtnl callback instead of manual rtnllock in preexit wgnetnspreexit manually acquires rtnllock inside the pernet .preexit callback. This causes a hung task when another thread holds rtnlmutex - the...

CVE-2026-31579 wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit

In the Linux kernel, the following vulnerability has been resolved: wireguard: device: use exitrtnl callback instead of manual rtnllock in preexit wgnetnspreexit manually acquires rtnllock inside the pernet .preexit callback. This causes a hung task when another thread holds rtnlmutex - the...

CVE-2026-31579 wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit

In the Linux kernel, the following vulnerability has been resolved: wireguard: device: use exitrtnl callback instead of manual rtnllock in preexit wgnetnspreexit manually acquires rtnllock inside the pernet .preexit callback. This causes a hung task when another thread holds rtnlmutex - the...

CVE-2026-31556 xfs: scrub: unlock dquot before early return in quota scrub

In the Linux kernel, the following vulnerability has been resolved: xfs: scrub: unlock dquot before early return in quota scrub xchkquotaitem can return early after calling xchkfblockprocesserror. When that helper returns false, the function returned immediately without dropping dq-qqlock, which...

CVE-2026-31556

In the Linux kernel, the following vulnerability has been resolved: xfs: scrub: unlock dquot before early return in quota scrub xchkquotaitem can return early after calling xchkfblockprocesserror. When that helper returns false, the function returned immediately without dropping dq-qqlock, which...