CVE-2026-64591

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid WARNING in sva unbind path The Intel IOMMU driver allows SVA on devices even if they do not support PCI/PRI. Commit 39c20c4e83b9 "iommu/vt-d: Only handle IOPF for SVA when PRI is supported" modified the SVA bind...

kernel: Linux kernel: Denial of Service due to NULL function pointer race in timer shutdown

A flaw was found in the Linux kernel. A race condition exists in the timershutdownsync function, where a timer's function pointer can be set to NULL while the timer is still active on another processor. This can be exploited by a local attacker to trigger a kernel warning, potentially leading to...

UBUNTU-CVE-2026-64254

In the Linux kernel, the following vulnerability has been resolved: NTB: epf: Avoid pciiounmap with offset when PEERSPAD and CONFIG share BAR When BARPEERSPAD and BARCONFIG share one PCI BAR, the module teardown path ends up calling pciiounmap on the same iomem with some offset, which is...

CVE-2026-64254

In the Linux kernel, the following vulnerability has been resolved: NTB: epf: Avoid pciiounmap with offset when PEERSPAD and CONFIG share BAR When BARPEERSPAD and BARCONFIG share one PCI BAR, the module teardown path ends up calling pciiounmap on the same iomem with some offset, which is...

CVE-2026-64254: Reachable Assertion

In the Linux kernel, the following vulnerability has been resolved: NTB: epf: Avoid pciiounmap with offset when PEERSPAD and CONFIG share BAR When BARPEERSPAD and BARCONFIG share one PCI BAR, the module teardown path ends up calling pciiounmap on the same iomem with some offset, which is...

CVE-2026-63878

A flaw was found in the drm/amdgpu component of the Linux kernel. A local attacker can exploit an integer overflow vulnerability by providing an excessively large value for the numentries parameter in the GEMOP GETMAPPINGINFO ioctl. This can lead to an attempt to allocate an extremely large amoun...

CVE-2026-64153

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix iommumapsgtable return value check and avoid WARN Commit "iommu: return full error code from iommumapsgatomic" changed iommumapsgtable to return an ssizet and negative values in error cases, rather than a sizet and a...

CVE-2026-63878 drm/amdgpu: check num_entries in GEM_OP GET_MAPPING_INFO

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: check numentries in GEMOP GETMAPPINGINFO kvcallocargs-numentries, sizeofvmentries, GFPKERNEL at amdgpugem.c:1050 uses the user-supplied numentries directly without any upper bounds check. Since numentries is a u32 and...

CVE-2026-63878

The CVE-2026-63878 entry concerns the Linux kernel driver drm/amdgpu, specifically GEM_OP GET_MAPPING_INFO. The issue arises when user-supplied num_entries is used directly to allocate memory via kvcalloc without an upper bound, with num_entries as __u32 and each entry-sized 32 bytes. This can le...

CVE-2026-64108: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix busy dentry used after unmounting Since commit 340cea84f691c "cifs: open files should not hold ref on superblock", cifs file only holds the dentry refcnt, the cifs file close workcfile-deferred could be executed after...

CVE-2026-53352

A flaw was found in the Linux kernel. A race condition exists in the zapotherthreads function where job control flags are not properly cleared for the calling thread. This can occur when a multi-threaded process receives a stop signal, and one of its threads concurrently calls execve. The...

CVE-2026-53319

In the Linux kernel, the following vulnerability has been resolved: blk-wbt: remove WARNONONCE from wbtinitenabledefault wbtinitenabledefault uses WARNONONCE to check for failures from wbtalloc and wbtinit. However, both are expected failure paths: - wbtalloc can return NULL under memory pressure...

CVE-2026-46297

A flaw was found in the Linux kernel's libwx network driver. Incorrect handling of virtual function VF miscellaneous interrupts, specifically using requestthreadedirq with a null threaded handler and the IRQFONESHOT flag, can trigger a kernel warning. This issue may lead to system instability or...

CVE-2026-46279: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: mm/alloctag: clear codetag for pages allocated before pageext initialization Due to initialization ordering, pageext is allocated and initialized relatively late during boot. Some pages have already been allocated and freed befor...

CVE-2026-46254

A flaw was found in the Linux kernel's AppArmor security module. This vulnerability arises when AppArmor processes unaligned Deterministic Finite Automaton DFA tables, which can originate from either kernel or userspace. The unaligned memory access triggered by these tables can lead to system...

CVE-2026-46248

A flaw was found in the Linux kernel's ath12k Wi-Fi driver. When an arvif Access Point Virtual Interface is initialized in non-AP STA mode and a Multi-Link Operation MLO connection fails before the arvif is fully created, a stale link mapping can persist. This can lead to a kernel warning WARNON...

CVE-2026-46272

A flaw was found in the Linux kernel's Coresight Trace Memory Controller TMC Embedded Trace Router ETR driver. A race condition can occur when both the sysfs and perf modes are used simultaneously. This can lead to a kernel warning, potentially causing system instability or unexpected behavior...

AZL-89342 CVE-2026-46254 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: AppArmor: Allow apparmor to handle unaligned dfa tables The dfa tables can originate from kernel or userspace and 8-byte alignment isn't always guaranteed and as such may trigger unaligned memory accesses on various architectures...

CVE-2026-46268 PCI/P2PDMA: Fix p2pmem_alloc_mmap() warning condition

In the Linux kernel, the following vulnerability has been resolved: PCI/P2PDMA: Fix p2pmemallocmmap warning condition Commit b7e282378773 has already changed the initial page refcount of p2pdma page from one to zero, however, in p2pmemallocmmap it uses "VMWARNONONCEPAGE!pagerefcountpage" to asser...

CVE-2026-46268

The CVE relates to the Linux kernel PCI/P2PDMA subsystem. A warning in p2pmem_alloc_mmap() was triggered by an assertion VM_WARN_ON_ONCE_PAGE(!page_ref_count(page)) after the initial page refcount was changed to zero by a prior patch. The issue arises only when CONFIG_DEBUG_VM is enabled, produci...