Alertas de Seguridad de la Información

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-80528] In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while us…

In the Linux kernel, the following vulnerability has been resolved: ceph: avoid fs reclaim while using current->journal_info handle_reply() stores a `ceph_mds_request` pointer in `current->journal_info` while filling the inode and dentry cache from an MDS reply. An allocation in this section can enter direct reclaim and prune dentries from another filesystem. If this dirties an ext4 inode, ext…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80530] In the Linux kernel, the following vulnerability has been resolved: xfs: fix exchange-range reflink…

In the Linux kernel, the following vulnerability has been resolved: xfs: fix exchange-range reflink flag clearing issue with INO1_WRITTEN When exchanging two full-file ranges, xmi_can_exchange_reflink_flags() can move the reflink inode flag from the file that currently has it to the other file, as long as exactly one side is marked. This assumes that the file contents, and therefore all shared …

nvdaltovulnerabilidad CVSS 7.1 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-80519] In the Linux kernel, the following vulnerability has been resolved: ovpn: finish crypto callback cl…

In the Linux kernel, the following vulnerability has been resolved: ovpn: finish crypto callback cleanup before peer release Crypto completion callbacks hold both key-slot and peer references. The peer reference pins the netdev, and dropping the last peer reference can let netdev unregistration and module removal make progress. Do not release that peer reference before the callback has finished…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80520] In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when…

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix NULL dereference when killing missing key ovpn_crypto_kill_key assumes both crypto slots are populated and dereferences each slot before checking it. That is not guaranteed: a peer can have only one installed key, and the kill path may be asked to remove a key that is not present. Read each slot once while holding the…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80521] In the Linux kernel, the following vulnerability has been resolved: af_unix: Unlink scc_entry in un…

In the Linux kernel, the following vulnerability has been resolved: af_unix: Unlink scc_entry in unix_del_edge(). Kyle Zeng reported that GC could free a dead SCC partially. The scenario is as follows: 1) Create two SCCs: X -. A B ^--' 2) Run the following concurrently: 2-1) send() sk-B to sk-B from sk-X 2-2) close() both A and B At 2-1), there is a sm…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80522] In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - fix rctx->crypt…

In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req() Perform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way it is done in tegra_ccm_crypt_init(). The current formulae may lead to a crash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize remains zero. Then a decrypt oper…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-80523] In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: k3: set hdma clo…

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: k3: set hdma clock as critical HDMA clock is responsible for the internal TCM access path of X100 RISC-V core, so set the clock flag as critical to prevent it from being shut off, otherwise the Linux system will hang, for example in the case of a vector instruction access generates a page fault.

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74750] In the Linux kernel, the following vulnerability has been resolved: ovpn: defer key slot crypto fre…

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…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-74751] In the Linux kernel, the following vulnerability has been resolved: riscv: lib: Fix ZBB strnlen rea…

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 …

nvdcriticovulnerabilidad CVSS 9.4 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-74752] In the Linux kernel, the following vulnerability has been resolved: sctp: validate cookie AUTH stat…

In the Linux kernel, the following vulnerability has been resolved: sctp: validate cookie AUTH state before use When cookie authentication is disabled, COOKIE_ECHO restores fixed-size AUTH fields directly from peer-controlled cookie bytes. A forged RANDOM length, HMAC list, or CHUNKS list can then reach association consumers with lengths or identifiers that were never validated against the loca…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74753] In the Linux kernel, the following vulnerability has been resolved: perf: Reject exited events as g…

In the Linux kernel, the following vulnerability has been resolved: perf: Reject exited events as group leaders perf_event_remove_on_exec() sets remove-on-exec events to the EXIT state and detaches their group relationships. The event's file descriptor can remain open, however, and perf_event_open() currently accepts that event as a group leader because its early validation rejects only REVOKED…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-74743] In the Linux kernel, the following vulnerability has been resolved: macvlan: inherit needed_headroo…

In the Linux kernel, the following vulnerability has been resolved: macvlan: inherit needed_headroom and needed_tailroom from lowerdev macvlan devices inherit hard_header_len from lowerdev during macvlan_init(), but leave needed_headroom and needed_tailroom set to 0. When the underlying lowerdev requires extra headroom or tailroom for headers/trailers (e.g. macsec, ipsec, wireguard, tunnels, or…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-74744] In the Linux kernel, the following vulnerability has been resolved: ipvlan: inherit needed_headroom…

In the Linux kernel, the following vulnerability has been resolved: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev ipvlan devices inherit hard_header_len from phy_dev during ipvlan_init(), but leave needed_headroom and needed_tailroom set to 0. When the underlying phy_dev (or stacked lower device) requires extra headroom or tailroom for headers/trailers (e.g. macsec, ipsec, wi…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74745] In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: avoid deadlock when …

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: avoid deadlock when canceling IRQ affinity notifier Unregistering IRQ affinity notifiers waits for the callback synchronously. bnxt takes the netdev instance lock in the notifier (to restart the queue) and cancels the work under the same lock. This may obviously deadlock. Move the restart to the async service task. T…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-74746] In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: publish G…

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: publish GC-visible tuple last nf_flow_table_iterate() only treats original-direction tuple nodes as owning entries. Publishing the original node first lets GC observe and free a flow while flow_offload_add() is still inserting the reply node. Publish the reply node first and the original node last so GC nev…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74747] In the Linux kernel, the following vulnerability has been resolved: ipvs: revalidate ihl to prevent…

In the Linux kernel, the following vulnerability has been resolved: ipvs: revalidate ihl to prevent out-of-bounds access While the outer IP header is already pulled into the skb head, we must be careful and revalidate the embedded headers after reading them from the skb frags to prevent out-of-bounds access. One such place reported by Sashiko is ip_vs_nat_icmp() where local process can change t…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74748] In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount …

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap __ip_set_put_byindex() resolved the index to a set pointer under RCU, then took ip_set_ref_lock in __ip_set_put() to decrement set->ref. ip_set_swap() holds that same lock while swapping both the ip_set_list slots and the two sets' ref counters, so it can interleav…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74736] In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_bpf: reject dev-…

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_bpf: reject dev-bound programs bound to a different device cls_bpf_prog_from_efd() obtained a SCHED_CLS program via bpf_prog_get_type_dev() but never verified that a device-bound (offloaded) program's bound netdev matches the TC netdev the classifier is being attached to. This let a program loaded with prog_ifinde…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Crítico vulnerabilidad

26/08/2026

[CVE-2026-74737] In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw-nu…

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw-nuss: Fix port_id extraction from SRC TAG On the packet reception path, the ID of the MAC Port on which the packet was received, is embedded in the RX DMA Descriptor's metadata. The ID is extracted using the helper function cppi5_desc_get_tags_ids() which fills in the 16-bit Source Tag into the 'port…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

26/08/2026

[CVE-2026-74739] In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: skip hash t…

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: skip hash tables in u32_bind_class() u32_walk() enumerates both struct tc_u_hnode and struct tc_u_knode through the walker callback. u32_bind_class() unconditionally casts the passed fh to tc_u_knode and accesses &n->res, so when fh is actually a tc_u_hnode, which has no tcf_result member, this results in a s…

nvdaltovulnerabilidad CVSS 7.8 NVD