Alertas de Seguridad de la Información

L Crítico vulnerabilidad

10/07/2026

[CVE-2026-53363] In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: preserve shared-fr…

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: preserve shared-frag marker in iptfs_consume_frags() iptfs_consume_frags() transfers paged fragments from one socket buffer to another but fails to propagate the SKBFL_SHARED_FRAG flag. This is the same class of bug that was fixed in skb_try_coalesce() for CVE-2026-46300: when fragments backed by read-only page-cach…

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

04/07/2026

[CVE-2026-53361] In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to …

In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thread 3 -------- -------- -------- unix_schedule_gc() …

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

04/07/2026

[CVE-2026-53362] In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on th…

In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branch is taken (MSG_MORE / NETIF_F_SG / large fraglen), alloclen and pagedlen are computed as alloclen = fragheaderlen + transhdrlen; pagedlen = datalen - transhdrlen; datalen already includes fraggap (datalen = length +…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

04/07/2026

[CVE-2026-53359] In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use…

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix shadow paging use-after-free due to unexpected role Commit 0cb2af2ea66ad ("KVM: x86: Fix shadow paging use-after-free due to unexpected GFN") fixed a shadow paging mismatch between stored and computed GFNs; the bug could be triggered by changing a PDE mapping from outside the guest, and then deleting a memslot. Th…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

04/07/2026

[CVE-2026-53360] In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Require in-GHCB scrat…

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in use As per the GHCB spec, when using GHCB v2+ require the software scratch area to reside in the GHCB's shared buffer. Note, things like Page State Change (PSC) requests _rely_ on this behavior, as the guest can't provide a length when making the request, i.e. the size of…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

02/07/2026

[CVE-2026-53357] In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2cap_soc…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del() bt_accept_dequeue() unlinks a not-yet-accepted child from the parent accept queue and release_sock()s it before returning, so the returned sk has no caller reference and is unlocked. l2cap_sock_cleanup_listen() walks these children on listening-socket close. …

nvdaltovulnerabilidad CVSS 8.0 NVD

L Alto vulnerabilidad

02/07/2026

[CVE-2026-53358] In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use chan time…

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: use chan timer to close channels in cleanup_listen() l2cap_chan_close() removes the channel from conn->chan_l, which must be done under conn->lock. cleanup_listen() runs under the parent sk_lock, so acquiring conn->lock would invert the established conn->lock -> chan->lock -> sk_lock order. Instead of calling…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Alto vulnerabilidad

01/07/2026

[CVE-2026-53356] In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix phys BO pread…

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix phys BO pread/pwrite with offset sg_page() returns struct page pointer not (void *) so the scaling of pread/pwrite is wrong for phys BO and wrong parts of BO would be accessed if non-zero offset is used. Last impacted platform with overlay or cursor planes using phys mapping was Gen3/945G/Lakeport. (cherry pi…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

01/07/2026

[CVE-2026-53354] In the Linux kernel, the following vulnerability has been resolved: arm64: errata: Mitigate TLBI er…

In the Linux kernel, the following vulnerability has been resolved: arm64: errata: Mitigate TLBI errata on various Arm CPUs A number of CPUs developed by Arm suffer from errata whereby a broadcast TLBI;DSB sequence may complete before the global observation of writes which are translated by an affected TLB entry. These errata ONLY affect the completion of memory accesses which have been transla…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Crítico vulnerabilidad

01/07/2026

[CVE-2026-53355] In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setu…

In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released. When rds_ib_setup_qp() fails after allocating i_sends …

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

01/07/2026

[CVE-2026-53341] In the Linux kernel, the following vulnerability has been resolved: fhandle: fix UAF due to unlocke…

In the Linux kernel, the following vulnerability has been resolved: fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh() may_decode_fh() accesses mount::mnt_ns without holding any locks; that means the mount can concurrently be unmounted, and the mnt_namespace can concurrently be freed after an RCU grace period. This race can happens as follows, assuming that the mount point was cr…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

01/07/2026

[CVE-2026-53346] In the Linux kernel, the following vulnerability has been resolved: rust: arm64: set uwtable llvm m…

In the Linux kernel, the following vulnerability has been resolved: rust: arm64: set uwtable llvm module flag for CONFIG_UNWIND_TABLES Due to a rustc bug [1] the -Cforce-unwind-tables=y flag only emits the uwtable annotation for functions, but not for the module. This means that compiler-generated functions such as 'asan.module_ctor' do not receive the uwtable annotation. When CONFIG_UNWIND_PAT…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

01/07/2026

[CVE-2026-53329] In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Use krealloc_a…

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Use krealloc_array() in dal_vector_reserve() [Why & How] dal_vector_reserve() computes the allocation size as "capacity * vector->struct_size" using uint32_t arithmetic, which can silently wrap to a small value on overflow. This would cause krealloc to return a smaller buffer than expected, leading to heap overf…

nvdaltovulnerabilidad CVSS 7.0 NVD

L Alto vulnerabilidad

01/07/2026

[CVE-2026-53330] 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 read in dp_get_eq_aux_rd_interval() [Why & How] The aux_rd_interval array in struct dc_lttpr_caps is declared with MAX_REPEATER_CNT - 1 (7) elements, indexed 0..6. However, the offset parameter passed to dp_get_eq_aux_rd_interval() can be as large as MAX_REPEATER_CNT (8) when a sink reports 8 L…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53322] In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs befo…

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Clean up DMABUFs before disabling function On device shutdown, make vfio_pci_core_close_device() call vfio_pci_dma_buf_cleanup() before the function is disabled via vfio_pci_core_disable(). This ensures that all access via DMABUFs is revoked before the function's BARs become inaccessible. This fixes an issue where, i…

nvdaltovulnerabilidad CVSS 8.8 NVD

L Crítico vulnerabilidad

26/06/2026

[CVE-2026-53309] In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dl…

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison The local-vs-remote region comparison loop uses '

nvdcriticovulnerabilidad CVSS 9.8 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53300] In the Linux kernel, the following vulnerability has been resolved: net: enetc: fix NTMP DMA use-af…

In the Linux kernel, the following vulnerability has been resolved: net: enetc: fix NTMP DMA use-after-free issue The AI-generated review reported a potential DMA use-after-free issue [1]. If netc_xmit_ntmp_cmd() times out and returns an error, the pending command is not explicitly aborted, while ntmp_free_data_mem() unconditionally frees the DMA buffer. If the buffer has already been reallocate…

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53303] In the Linux kernel, the following vulnerability has been resolved: f2fs: protect extension_list re…

In the Linux kernel, the following vulnerability has been resolved: f2fs: protect extension_list reading with sb_lock in f2fs_sbi_show() In f2fs_sbi_show(), the extension_list, extension_count and hot_ext_count are read without holding sbi->sb_lock. If a concurrent sysfs store modifies the extension list via f2fs_update_extension_list(), the show path may read inconsistent count and array conten…

nvdaltovulnerabilidad CVSS 7.1 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53294] In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: don't fr…

In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: don't free the reused channel The RX channel can be aliased to the TX channel if it has a different MMIO. This special case needs to be handled when freeing the channels otherwise a double-free occurs.

nvdaltovulnerabilidad CVSS 7.8 NVD

L Alto vulnerabilidad

26/06/2026

[CVE-2026-53296] In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: free cha…

In the Linux kernel, the following vulnerability has been resolved: mailbox: mailbox-test: free channels on probe error On probe error, free the previously obtained channels. This not only prevents a leak, but also UAF scenarios because the client structure will be removed nonetheless because it was allocated with devm.

nvdaltovulnerabilidad CVSS 7.8 NVD