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| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-74751 | 1 Linux | 1 Linux Kernel | 2026-08-27 | 9.4 Critical |
| In the Linux kernel, the following vulnerability has been resolved: riscv: lib: Fix ZBB strnlen reading past count boundary The ZBB-optimized strnlen loop loads one word ahead before checking the aligned boundary: REG_L t1, SZREG(t0) // load next word addi t0, t0, SZREG // advance orc.b t1, t1 bgeu t0, t4, 4f // boundary check AFTER load where t4 = (s + count) & -SZREG. When s is aligned and count is a multiple of SZREG, t4 equals s + count and the loop loads a full word starting at exactly s + count. If s + count falls on a page boundary with the next page unmapped, this faults. Fix by computing the aligned boundary from the last valid byte (s + count - 1) instead of s + count. This makes the loop stop at the word containing the last valid byte rather than potentially loading the word after it. The count == 0 case is already handled by the beqz early exit. Also add a pre-loop guard (bgeu t0, t4) for the case where all valid bytes fit within the first word. With the adjusted boundary, t4 can equal t0, and entering the loop with stale register state from the first-word processing would produce incorrect results. The final minu clamp ensures the result is still correct when the last loaded word extends past s + count - 1 within the same aligned word. | ||||
| CVE-2026-74750 | 1 Linux | 1 Linux Kernel | 2026-08-27 | 7.5 High |
| In the Linux kernel, the following vulnerability has been resolved: ovpn: defer key slot crypto freeing to workqueue Key slots are released through a kref and the existing release path frees the AEAD transforms from an RCU callback. That is not safe for all crypto implementations: crypto_free_aead can sleep, for example when an async or hardware implementation has teardown work to complete. Use queue_rcu_work for key-slot release. This keeps the RCU grace period needed by lockless key-slot readers, but runs the actual crypto teardown from workqueue context where sleeping is allowed. Once the rcu_work callback runs, pre-existing RCU readers are gone, and the final kref put already proves that no transform user remains, so the worker can release the AEAD transforms and free the slot directly. The previous patch drains ovpn_wq during module exit, so queued key-slot teardown work cannot outlive module text. | ||||
| CVE-2026-74742 | 1 Linux | 1 Linux Kernel | 2026-08-27 | 7.5 High |
| In the Linux kernel, the following vulnerability has been resolved: veth: fix queue index used to wake the peer txq in veth_poll veth_poll() derives the index of the peer TX queue to wake from rq->xdp_rxq.queue_index. That field is only initialized by xdp_rxq_info_reg() in veth_enable_xdp_range(), which runs only when an XDP program is attached. On the plain GRO/NAPI path (veth_napi_enable_range()) xdp_rxq_info_reg() is never called, so queue_index stays 0 for every queue, as priv->rq is zero-allocated. So in a multi-queue setup with GRO enabled and no XDP program attached, every NAPI instance looks at the peer's TX queue 0. If veth_xmit() stops peer TX queue 1 because the ptr_ring is full (NETDEV_TX_BUSY), nothing ever wakes it again: the poller draining queue 1 wakes queue 0 instead. veth implements no ndo_tx_timeout, so the netdev watchdog does not kick in either, and the queue stays stopped indefinitely. Derive the index from the position of the rq within priv->rq instead, which is correct regardless of whether XDP was ever enabled. Scripts to reproduce the stall are available at https://github.com/netoptimizer/veth-backpressure-performance-testing | ||||
| CVE-2023-22289 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22328 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22343 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22352 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22364 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22420 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22423 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22426 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22430 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22433 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22434 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22437 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22445 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-22446 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-23544 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-27503 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||
| CVE-2023-27508 | 2026-08-27 | N/A | ||
| This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is Unused | ||||