Alertas de Seguridad de la Información

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53091] In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdisc_pkt_…

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdisc_pkt_len_segs_init() Most ndo_start_xmit() methods expects headers of gso packets to be already in skb->head. net/core/tso.c users are particularly at risk, because tso_build_hdr() does a memcpy(hdr, skb->data, hdr_len); qdisc_pkt_len_segs_init() already does a dissection of gso packets. Use pskb_may…

nvdaltovulnerabilidad CVSS 8.4 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53097] In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix use-aft…

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix use-after-free bugs in mt7996_mac_dump_work() When the mt7996 pci chip is detaching, the mt7996_crash_data is released in mt7996_coredump_unregister(). However, the work item dump_work may still be running or pending, leading to UAF bugs when the already freed crash_data is dereferenced again in mt7996_ma…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53075] In the Linux kernel, the following vulnerability has been resolved: ppp: require CAP_NET_ADMIN in t…

In the Linux kernel, the following vulnerability has been resolved: ppp: require CAP_NET_ADMIN in target netns for unattached ioctls /dev/ppp open is currently authorized against file->f_cred->user_ns, while unattached administrative ioctls operate on current->nsproxy->net_ns. As a result, a local unprivileged user can create a new user namespace with CLONE_NEWUSER, gain CAP_NET_ADMIN only in t…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53076] In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpu_init_value…

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpu_init_value An out-of-bounds read occurs when copying element from a BPF_MAP_TYPE_CGROUP_STORAGE map to another pcpu map with the same value_size that is not rounded up to 8 bytes. The issue happens when: 1. A CGROUP_STORAGE map is created with value_size not aligned to 8 bytes (e.g., 4 bytes) 2. A pcpu m…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53077] In the Linux kernel, the following vulnerability has been resolved: net/rds: Restrict use of RDS/IB…

In the Linux kernel, the following vulnerability has been resolved: net/rds: Restrict use of RDS/IB to the initial network namespace Prevent using RDS/IB in network namespaces other than the initial one. The existing RDS/IB code will not work properly in non-initial network namespaces.

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53069] In the Linux kernel, the following vulnerability has been resolved: net, bpf: fix null-ptr-deref in…

In the Linux kernel, the following vulnerability has been resolved: net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master syzkaller reported a kernel panic in bond_rr_gen_slave_id() reached via xdp_master_redirect(). Full decoded trace: https://syzkaller.appspot.com/bug?extid=80e046b8da2820b6ba73 bond_rr_gen_slave_id() dereferences bond->rr_tx_counter, a per-CPU counter that …

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53068] In the Linux kernel, the following vulnerability has been resolved: drm/komeda: fix integer overflo…

In the Linux kernel, the following vulnerability has been resolved: drm/komeda: fix integer overflow in AFBC framebuffer size check The AFBC framebuffer size validation calculates the minimum required buffer size by adding the AFBC payload size to the framebuffer offset. This addition is performed without checking for integer overflow. If the addition oveflows, the size check may incorrectly su…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Crítico vulnerabilidad

24/06/2026

[CVE-2026-53055] In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - preven…

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occ…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53050] In the Linux kernel, the following vulnerability has been resolved: quota: Fix race of dquot_scan_a…

In the Linux kernel, the following vulnerability has been resolved: quota: Fix race of dquot_scan_active() with quota deactivation dquot_scan_active() can race with quota deactivation in quota_release_workfn() like: CPU0 (quota_release_workfn) CPU1 (dquot_scan_active) ============================== ============================== spin_lock(&dq_list_lock); list_replace_init( …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53036] In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix off-by-one in c…

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix off-by-one in check_imm signed range check check_imm(bits, imm) is used in the arm64 BPF JIT to verify that a branch displacement (in arm64 instruction units) fits into the signed N-bit immediate field of a B, B.cond or CBZ/CBNZ encoding before it is handed to the encoder. The macro currently tests for (imm > 0 &…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53033] In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Take state lock f…

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Take state lock for af_unix iter When a BPF iterator program updates a sockmap, there is a race condition in unix_stream_bpf_update_proto() where the `peer` pointer can become stale[1] during a state transition TCP_ESTABLISHED -> TCP_CLOSE. CPU0 bpf CPU1 close -------- …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53024] In the Linux kernel, the following vulnerability has been resolved: greybus: raw: fix use-after-fre…

In the Linux kernel, the following vulnerability has been resolved: greybus: raw: fix use-after-free if write is called after disconnect If a user writes to the chardev after disconnect has been called, the kernel panics with the following trace (with CONFIG_INIT_ON_FREE_DEFAULT_ON=y): BUG: kernel NULL pointer dereference, address: 0000000000000218 ... Call Trace: …

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53025] In the Linux kernel, the following vulnerability has been resolved: greybus: raw: fix use-after-fre…

In the Linux kernel, the following vulnerability has been resolved: greybus: raw: fix use-after-free on cdev close This addresses a use-after-free bug when a raw bundle is disconnected but its chardev is still opened by an application. When the application releases the cdev, it causes the following panic when init on free is enabled (CONFIG_INIT_ON_FREE_DEFAULT_ON=y): refcount_t: underf…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-53005] In the Linux kernel, the following vulnerability has been resolved: af_unix: Drop all SCM attribute…

In the Linux kernel, the following vulnerability has been resolved: af_unix: Drop all SCM attributes for SOCKMAP. SOCKMAP can hide inflight fd from AF_UNIX GC. When a socket in SOCKMAP receives skb with inflight fd, sk_psock_verdict_data_ready() looks up the mapped socket and enqueue skb to its psock->ingress_skb. Since neither the old nor the new GC can inspect the psock queue, the hidden skb…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Crítico vulnerabilidad

24/06/2026

[CVE-2026-52999] In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix o…

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix out-of-bounds read on option matching In nf_osf_match(), the nf_osf_hdr_ctx structure is initialized once and passed by reference to nf_osf_match_one() for each fingerprint checked. During TCP option parsing, nf_osf_match_one() advances the shared ctx->optp pointer. If a fingerprint perfectly match…

nvdcriticovulnerabilidad CVSS 9.1 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52987] In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_ex…

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_exec_fini() in userq validate When new_addition is true, amdgpu_userq_vm_validate() calls drm_exec_fini(&exec) before iterating over the collected HMM ranges and calling amdgpu_ttm_tt_get_user_pages(). If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to unlock_all and calls drm_e…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52981] In the Linux kernel, the following vulnerability has been resolved: neigh: let neigh_xmit take skb …

In the Linux kernel, the following vulnerability has been resolved: neigh: let neigh_xmit take skb ownership neigh_xmit always releases the skb, except when no neighbour table is found. But even the first added user of neigh_xmit (mpls) relied on neigh_xmit to release the skb (or queue it for tx). sashiko reported: If neigh_xmit() is called with an uninitialized neighbor table (for example, N…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52967] In the Linux kernel, the following vulnerability has been resolved: smb/client: fix possible infini…

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix possible infinite loop and oob read in symlink_data() On 32-bit architectures, the infinite loop is as follows: len = p->ErrorDataLength == 0xfffffff8 u8 *next = p->ErrorContextData + len next == p On 32-bit architectures, the out-of-bounds read is as follows: len = p->ErrorDataLength == 0xfffffff0 u…

nvdaltovulnerabilidad CVSS 8.1 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52974] In the Linux kernel, the following vulnerability has been resolved: net: tls: fix strparser anchor …

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix strparser anchor skb leak on offload RX setup failure When tls_set_device_offload_rx() fails at tls_dev_add(), the error path calls tls_sw_free_resources_rx() to clean up the SW context that was initialized by tls_set_sw_offload(). This function calls tls_sw_release_resources_rx() (which stops the strparser via tls…

nvdaltovulnerabilidad CVSS 7.5 NVD

L Alto vulnerabilidad

24/06/2026

[CVE-2026-52950] In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with re…

In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init do the alloc for us. This should make the retry safe. Reported by Sashiko. v2: Fix up the error unwi…

nvdaltovulnerabilidad CVSS 7.8 NVD