CVE-2026-74277

The CVE-2026-74277 issue is in the Linux kernel iommu/dma-iommu code, specifically the P2PDMA path. In iommu_dma_map_sg(), the DMA length for the current scatterlist segment was erroneously taken from the head entry (sg->length) instead of the current entry (s->length). This causes all P2PD...

CVE-2026-74275

The CVE-2026-74275 entry is about the Linux kernel driver cxl/region where cxl_cancel_auto_attach() can access p->targets[] using a potentially negative index cxled->pos. The root cause is that cxled->pos may be set to a negative errno in cxl_region_sort_targets() if cxl_calc_interleave_...

CVE-2026-74273

CVE-2026-74273 affects the Linux kernel’s cxl/region logic. The fix expands the range lock and renames it to a new lock called regions_lock to disable region deletion during two critical windows: between construct_region() and attach_target(), and between device_add() and registering the remove a...

CVE-2026-74274

The CVE-2026-74274 entry concerns the Linux kernel cxl/region auto-discovery logic. A NULL hole in a region’s target array (introduced when an endpoint decoder is removed or detached) could lead to null dereferences (possible Oops: general protection fault) or miscounting targets when lock flags ...

CVE-2026-74272

The CVE-2026-74272 entry details a Linux kernel issue in cxl/region where the sysfs trigger could attempt to delete the same region multiple times and race with kernel teardown. The workaround/patch replaces a per-region devres list with an xarray of regions and uses the existing root-decoder unr...

CVE-2026-74271

CVE-2026-74271 affects the Linux kernel’s power supply core. If the device tree property power-supplies has multiple values, accessing psy->supplied_from[i-1] in __power_supply_populate_supplied_from can overrun the supplied_from array. The patch fixes supplied_from allocations to prevent the ...

CVE-2026-74270

The CVE-2026-74270 vulnerability affects the Linux kernel handling of the handshake genl family. The DONE downcall previously performed no privilege check, allowing an unprivileged process that could observe or guess a valid socket to submit DONE with HANDSHAKE_A_DONE_STATUS == 0, causing the ker...

CVE-2026-74269

CVE-2026-74269 describes a Linux kernel issue where bnxt RX path under XDP head-grow can underflow the skb head when the head is adjusted by -256. The root cause is an underflow in bnxt_rx_multi_page_skb that builds the skb with napi_build_skb(data_ptr - bp->rx_offset, rxr->rx_page_size); b...

CVE-2026-74268

This CVE describes a Linux kernel vulnerability where a child socket can inherit BPF sock_ops cb flags from the listener through sk_clone_lock(), leading to a crash or compromised handling if its setup fails in tcp_v4_syn_recv_sock() or tcp_v6_syn_recv_sock(). The root cause is that, on forced-cl...

CVE-2026-74267

The CVE concerns the Linux kernel’s traffic scheduler (net/sched sch_codel). During a peek when codel drops packets, qdisc_tree_reduce_backlog is called before the qlen is re-incremented, potentially deactivating the parent class while 1 packet remains, risking a wild memory access in certain qdi...

CVE-2026-74266

The CVE-2026-74266 family documents a Linux kernel vulnerability in net/sched sch_dualpi2 where qdisc_tree_reduce_backlog is invoked during peek before the queue length (qlen) is restored. This causes a race where, if qlen drops to zero but a packet remains, the parent’s qlen_notify callback can ...

CVE-2026-74265

The CVE describes a Linux kernel fix in net: mana where gdma queue id is now initialized to INVALID_QUEUE_ID immediately after allocation. Previously, mana_gd_create_mana_wq_cq() left queue->id as 0 until mana_create_wq_obj() set the firmware-returned id; if creation failed before that, cleanu...

CVE-2026-74264

CVE-2026-74264 affects the Linux kernel watchdog code. The root issue is a race in refcount tracking between netdev_watchdog_up() and dev_watchdog(), caused by using dev->watchdog_dev_tracker without proper synchronization, which could lead to a use-after-free and list corruption (list_del cor...

CVE-2026-74263

The CVE affects the Linux kernel net: wwan: t7xx driver. In t7xx_port_ctrl_tx, each skb fragment is cloned and the clone is immediately used to set cloned->len; if skb_clone() fails, a NULL pointer dereference can occur. The fix checks the clone before using it and, when previous fragments are...

CVE-2026-74262

In the Linux kernel, CVE-2026-74262 affects the kernel networking path used by KCM. kcm_attach() replaces a live lower TCP socket’s sk_data_ready and sk_write_space callbacks with KCM handlers, and kcm_unattach() restores them later. These updates were plain stores and could be observed by other ...

CVE-2026-74261

CVE-2026-74261 — In the Linux kernel ALSA sequencer, a bug during fifo pool resize could leave stale cells and block pool teardown. The issue stems from snd_seq_fifo_resize() waiting for the replacement pool while a reader holds f->use_lock, and race conditions where events can be duplicated o...

CVE-2026-74260

In the Linux kernel, CVE-2026-74260 concerns netfilter nf_dup_netdev. Affected area: nf_dev_xmit_recursion*() helpers were added and then used by nft_dup and nft_fwd. The patch also disables bh (BH) when transmitting the skb to address potential migration to a different CPU, which could cause imb...

CVE-2026-74258

Summary (CVE-2026-74258): The Linux kernel patch fixes a vulnerability in the BPF upprobe path where __get_user could read user-space data without proper bounds checks. The root cause is missing bounds validation prior to using __get_user in uprobe_multi data; the fix adds an access_ok check to v...

CVE-2026-74259

Summary (mode C): CVE-2026-74259 affects the Linux kernel CIFS implementation. The issue arises when cifs files are not cleaned up before killing the superblock during unmount, allowing a NULL pointer dereference in cifsFileInfo_put_final which can trigger a BUG check. Reproduction notes outline ...

CVE-2026-74257

CVE-2026-74257 stems from a use-after-free in the Linux kernel sockmap path (udp_bpf_recvmsg) where sk_msg_recvmsg() can touch the same sk_msg when multiple threads race. The mitigation described in connected docs is to serialize sk_msg_recvmsg() by callers, specifically by adding a lock around u...