Alertas de Seguridad de la Información

L Crítico vulnerabilidad

08/06/2026

[CVE-2026-46289] In the Linux kernel, the following vulnerability has been resolved: lib/scatterlist: fix length cal…

In the Linux kernel, the following vulnerability has been resolved: lib/scatterlist: fix length calculations in extract_kvec_to_sg Patch series "Fix bugs in extract_iter_to_sg()", v3. Fix bugs in the kvec and user variants of extract_iter_to_sg. This series is growing due to useful remarks made by sashiko.dev. The main bugs are: - The length for an sglist entry when extracting from a kvec c…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46293] In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix o…

In the Linux kernel, the following vulnerability has been resolved: clk: microchip: mpfs-ccc: fix out of bounds access during output registration UBSAN reported an out of bounds access during registration of the last two outputs. This out of bounds access occurs because space is only allocated in the hws array for two PLLs and the four output dividers that each has, but the defined IDs contain t…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46294] In the Linux kernel, the following vulnerability has been resolved: dm: fix a buffer overflow in io…

In the Linux kernel, the following vulnerability has been resolved: dm: fix a buffer overflow in ioctl processing Tony Asleson (using Claude) found a buffer overflow in dm-ioctl in the function retrieve_status: 1. The code in retrieve_status checks that the output string fits into the output buffer and writes the output string there 2. Then, the code aligns the "outptr" variable to the next …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46285] In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free …

In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free in docg3_release() In docg3_release(), the docg3 pointer is obtained from cascade->floors[0]->priv before the loop that calls doc_release_device() on each floor. doc_release_device() frees the docg3 struct via kfree(docg3) at line 1881. After the loop, docg3->cascade->bch dereferences the already-f…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46288] In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-fre…

In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in of_unittest_changeset() The variable 'parent' is assigned the value of 'nchangeset' earlier in the function, meaning both point to the same struct device_node. The call to of_node_put(nchangeset) can decrement the reference count to zero and free the node if there are no other holders. After t…

nvdaltovulnerabilidad CVSS 8.4 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46277] In the Linux kernel, the following vulnerability has been resolved: mm/zone_device: do not touch de…

In the Linux kernel, the following vulnerability has been resolved: mm/zone_device: do not touch device folio after calling ->folio_free() The contents of a device folio can immediately change after calling ->folio_free(), as the folio may be reallocated by a driver with a different order. Instead of touching the folio again to extract the pgmap, use the local stack variable when calling percpu…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46279] In the Linux kernel, the following vulnerability has been resolved: mm/alloc_tag: clear codetag for…

In the Linux kernel, the following vulnerability has been resolved: mm/alloc_tag: clear codetag for pages allocated before page_ext initialization Due to initialization ordering, page_ext is allocated and initialized relatively late during boot. Some pages have already been allocated and freed before page_ext becomes available, leaving their codetag uninitialized. A clear example is in init_se…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46280] In the Linux kernel, the following vulnerability has been resolved: lib: test_hmm: evict device pag…

In the Linux kernel, the following vulnerability has been resolved: lib: test_hmm: evict device pages on file close to avoid use-after-free Patch series "Minor hmm_test fixes and cleanups". Two bugfixes a cleanup for the HMM kernel selftests. These were mostly reported by Zenghui Yu with special thanks to Lorenzo for analysing and pointing out the problems. This patch (of 3): When dmirror_f…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46281] In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix buffer overflow in…

In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix buffer overflow in vrealloc_node_align() Commit 4c5d3365882d ("mm/vmalloc: allow to set node and align in vrealloc") added the ability to force a new allocation if the current pointer is on the wrong NUMA node, or if an alignment constraint is not met, even if the user is shrinking the allocation. On this path (nee…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46274] In the Linux kernel, the following vulnerability has been resolved: io-wq: check that the predecess…

In the Linux kernel, the following vulnerability has been resolved: io-wq: check that the predecessor is hashed in io_wq_remove_pending() io_wq_remove_pending() needs to fix up wq->hash_tail[] if the cancelled work was the tail of its hash bucket. When doing this, it checks whether the preceding entry in acct->work_list has the same hash value, but never checks that the predecessor is hashed at …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

08/06/2026

[CVE-2026-46275] In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_uart: fix UAFs a…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths Vulnerabilities leading to Use-After-Free (UAF) and Null Pointer Dereference (NPD) conditions were observed in the lifecycle management of hci_uart. The primary issue arises because the workqueues (init_ready and write_work) are only flushed/cancelled if …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46273] In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packet…

In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapters on Power systems do not support segmentation offload when the MSS is less than 224 bytes. Attempting to send such packets causes the adapter to freeze, stopping all traffic until manually reset. Implement ndo_features_check to disable GSO for packets with sm…

nvdaltovulnerabilidad CVSS 8.6 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46265] In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix WQ_MEM_RECLAIM wa…

In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix WQ_MEM_RECLAIM warning When sunrpc is used, if a reset triggered, our wq may lead the following trace: workqueue: WQ_MEM_RECLAIM xprtiod:xprt_rdma_connect_worker [rpcrdma] is flushing !WQ_MEM_RECLAIM hns_roce_irq_workq:flush_work_handle [hns_roce_hw_v2] WARNING: CPU: 0 PID: 8250 at kernel/workqueue.c:2644 check_fl…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Crítico vulnerabilidad

03/06/2026

[CVE-2026-46266] In the Linux kernel, the following vulnerability has been resolved: inet: RAW sockets using IPPROTO…

In the Linux kernel, the following vulnerability has been resolved: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP Yizhou Zhao reported that simply having one RAW socket on protocol IPPROTO_RAW (255) was dangerous. socket(AF_INET, SOCK_RAW, 255); A malicious incoming ICMP packet can set the protocol field to 255 and match this socket, leading to FNHE cache changes. inner = IP(s…

nvdcriticovulnerabilidad CVSS 9.1 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46267] In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers an…

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state and the skb queues. If teardown happens in parallel with a …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46270] In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-…

In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally dealloca…

nvdaltovulnerabilidad CVSS 8.4 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46271] In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads o…

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi-link connection, WCN7850 firmware crashes due to WoW offloads enabled on both primary and secondary links. Change to do it only on primary link to fix it. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46260] In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bound access i…

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bound access in fib6_add_rt2node(). syzbot reported out-of-bound read in fib6_add_rt2node(). [0] When IPv6 route is created with RTA_NH_ID, struct fib6_info does not have the trailing struct fib6_nh. The cited commit started to check !iter->fib6_nh->fib_nh_gw_family to ensure that rt6_qualify_for_ecmp() will r…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46263] In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bou…

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix out-of-bounds stream encoder index v3 eng_id can be negative and that stream_enc_regs[] can be indexed out of bounds. eng_id is used directly as an index into stream_enc_regs[], which has only 5 entries. When eng_id is 5 (ENGINE_ID_DIGF) or negative, this can access memory past the end of the array. Add a …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

03/06/2026

[CVE-2026-46264] In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix sysfs initializa…

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix sysfs initialization In case of devm_add_action_or_reset() failure the provided cleanup action will be run immediately on the not yet initialized kobject. This may lead to errors like: [ ] kobject: '(null)' (ff110001393608e0): is not initialized, yet kobject_put() is being called. [ ] WARNING: lib/kobject.c:734…

nvdaltovulnerabilidad CVSS 8.8 NVD