CVE-2026-80633

CVE-2026-80633 is a locking bug in the Linux kernel iommufd subsystem. The function iopt_release_pages() calls dma_buf_unpin() without holding the required dma_resv lock, causing a kernel WARN every time iommufd_ioas_destroy() or iommufd_ioas_unmap() releases the last reference on a DMABUF-backed...

CVE-2026-80633

In the Linux kernel, the following vulnerability has been resolved: iommufd: Take dmaresv lock before dmabufunpin in release path dmabufunpin requires the caller to hold the exporter's dmaresv lock: void dmabufunpinstruct dmabufattachment attach ... dmaresvasserthelddmabuf-resv;...

CVE-2026-80633 iommufd: Take dma_resv lock before dma_buf_unpin() in release path

In the Linux kernel, the following vulnerability has been resolved: iommufd: Take dmaresv lock before dmabufunpin in release path dmabufunpin requires the caller to hold the exporter's dmaresv lock: void dmabufunpinstruct dmabufattachment attach ... dmaresvasserthelddmabuf-resv;...

CVE-2026-80632 wifi: mt76: mt7996: Fix NULL pointer dereference in mt7996_init_tx_queues()

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix NULL pointer dereference in mt7996inittxqueues When MT76NPU and CONFIGNETMEDIATEKSOCWED are enabled and mt76 detects properly the Airoha NPU SoC, mt7996inittxqueues will dereference a NULL WED pointer. Fix...

CVE-2026-80631

CVE-2026-80631 affects the Linux kernel's btrfs LZO decompression path (lzo_decompress_bio() in fs/btrfs/lzo.c). The root cause is an insufficient validation check: each on-disk segment length (seg_len) is validated only against the workspace buffer size, not against the actual compressed input s...

EUVD-2026-67508

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix NULL pointer dereference in mt7996inittxqueues When MT76NPU and CONFIGNETMEDIATEKSOCWED are enabled and mt76 detects properly the Airoha NPU SoC, mt7996inittxqueues will dereference a NULL WED pointer. Fix...

EUVD-2026-67507

In the Linux kernel, the following vulnerability has been resolved: btrfs: lzo: reject compressed segment that overflows the compressed input lzodecompressbio validates each on-disk segment length seglen only against the workspace cbuf size, not against the compressed input size compressedlen, th...

CVE-2026-80631 btrfs: lzo: reject compressed segment that overflows the compressed input

In the Linux kernel, the following vulnerability has been resolved: btrfs: lzo: reject compressed segment that overflows the compressed input lzodecompressbio validates each on-disk segment length seglen only against the workspace cbuf size, not against the compressed input size compressedlen, th...

CVE-2026-80632

CVE-2026-80632 affects the Linux kernel 's wifi mt76 driver for the mt7996 chipset. When both MT76_NPU and CONFIG_NET_MEDIATEK_SOC_WED are enabled and mt76 detects the Airoha NPU SoC , the function mt7996_init_tx_queues() dereferences a NULL WED pointer, resulting in a NULL pointer dereference (k...

CVE-2026-80631 btrfs: lzo: reject compressed segment that overflows the compressed input

In the Linux kernel, the following vulnerability has been resolved: btrfs: lzo: reject compressed segment that overflows the compressed input lzodecompressbio validates each on-disk segment length seglen only against the workspace cbuf size, not against the compressed input size compressedlen, th...

CVE-2026-80630

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfqcodel: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever fqcodel drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

EUVD-2026-67506

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfqcodel: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever fqcodel drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

CVE-2026-80630 net/sched: sch_fq_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring qlen

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfqcodel: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever fqcodel drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

CVE-2026-80630

CVE-2026-80630 is a vulnerability in the Linux kernel's fq_codel traffic control qdisc (net/sched/sch_fq_codel). During the peek operation, the code calls qdisc_tree_reduce_backlog before reincrementing qlen. If qlen momentarily drops to zero while peek still returns a packet, the parent qdisc's ...

CVE-2026-80628 ALSA: seq: oss: Serialize readq reset state with q->lock

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Serialize readq reset state with q-lock sndseqossreadqclear resets qlen, head, and tail without q-lock even though the normal reader and producer paths serialize the same ring state under that spinlock. A reset ca...

CVE-2026-80629 octeontx2-af: npc: Fix size of entry2cntr_map

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: npc: Fix size of entry2cntrmap KASAN prints below splat. This is caused by allocating counter for reserved mcam entry for cpt 2nd pass entry. But mcam-entry2cntrmap is not allocated for reserved entries. BUG: KASAN:...

CVE-2026-80628 ALSA: seq: oss: Serialize readq reset state with q->lock

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Serialize readq reset state with q-lock sndseqossreadqclear resets qlen, head, and tail without q-lock even though the normal reader and producer paths serialize the same ring state under that spinlock. A reset ca...

CVE-2026-80629

CVE-2026-80629 is a slab-out-of-bounds write in the Linux kernel's octeontx2-af NPC (Network Policy Classifier) driver. The bug occurs when a counter is allocated for a reserved MCAM entry used by the CPT 2nd pass, while mcam->entry2cntr_map was not sized to cover reserved entries, resulting i...

CVE-2026-80628

CVE-2026-80628 is a data race in the Linux kernel's ALSA sequencer OSS subsystem. The function snd_seq_oss_readq_clear() resets ring queue state (qlen, head, tail) without holding the q->lock spinlock, while the normal reader and producer paths serialize the same state under that lock. This ra...

CVE-2026-80629 octeontx2-af: npc: Fix size of entry2cntr_map

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: npc: Fix size of entry2cntrmap KASAN prints below splat. This is caused by allocating counter for reserved mcam entry for cpt 2nd pass entry. But mcam-entry2cntrmap is not allocated for reserved entries. BUG: KASAN:...