Alertas de Seguridad de la Información

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93816] In the Linux kernel, the following vulnerability has been resolved: f2fs: validate inline dentry na…

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate inline dentry name lengths before conversion Inline dentry conversion copies names out of the inline dentry area before checking that each recorded name length fits in the available filename slots. A corrupted image can therefore make the conversion path read past the inline filename storage while building the re…

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93817] In the Linux kernel, the following vulnerability has been resolved: perf: Fix addr_filter_ranges li…

In the Linux kernel, the following vulnerability has been resolved: perf: Fix addr_filter_ranges lifetime Lee Jia Jie reported that since event::addr_filter_ranges is used under RCU, it should be RCU freed.

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93810] In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix double fput Fi…

In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix double fput Fix a double fput() in error handling in cachefiles_create_tmpfile().

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93813] In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate I…

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODE_REF's namelen [BUG] A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page CPU: 9 UID: 0 PID: 1034 Comm: poc Not tainted 7.1.0-rc4-cust…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93801] In the Linux kernel, the following vulnerability has been resolved: smb/client: zero-initialize sta…

In the Linux kernel, the following vulnerability has been resolved: smb/client: zero-initialize stack-allocated cifs_open_info_data Stack-allocated cifs_open_info_data may contain random data. This can make some fields have wrong value if they are not set later.

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93806] In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate assoc …

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: validate assoc response length before status and IE access cfg80211_rx_assoc_resp() initialises the status and response-IE fields of cfg80211_connect_resp_params from the management frame before proving that the frame is long enough for those offsets. S1G and regular association responses also have different IE o…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93793] In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX…

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX_CMD response layout TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload. For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in th…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93796] In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: null RX po…

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: null RX pointers after free When iwl_pcie_tx_init() fails after RX init, nic init unwinds via iwl_pcie_rx_free(). The freed RX members stayed non-NULL on the live transport object, so later teardown or retry could touch stale RX state. Set rx_pool, global_table, rxq, and alloc_page to NULL after free to mak…

nvdaltovulnerabilidad CVSS 7.0 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93798] In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reloc root cleanup i…

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reloc root cleanup in merge_reloc_roots() If the root we got has zero root refs in its root item, we are resetting the root's ->reloc_root without using barriers like we do everywhere else. Sashiko complained about this while reviewing another patch, and it's correct (see the Link tag below). Also, we should not clea…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93799] In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate st…

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate sta_id in BA window status notif BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the firmware notification and uses it to index fw_id_to_mac_id[] without bounds checking. Validate sta_id before array access to prevent out-of-bounds indexing.

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93786] In the Linux kernel, the following vulnerability has been resolved: ksmbd: preserve VFS inherited P…

In the Linux kernel, the following vulnerability has been resolved: ksmbd: preserve VFS inherited POSIX ACL mask The VFS initializes a child's POSIX ACL from the parent's default ACL and the requested creation mode. Do not mutate the parent ACL or overwrite the child's VFS-computed access and default ACLs afterwards. This preserves restrictive ACL_MASK entries and prevents SMB object creation f…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93787] In the Linux kernel, the following vulnerability has been resolved: smb: client: bound dirent name …

In the Linux kernel, the following vulnerability has been resolved: smb: client: bound dirent name against end of SMB response in cifs_filldir cifs_filldir() copies the entry name out of an SMB1 TRANS2_FIND_FIRST / FIND_NEXT response using a length (de.namelen) supplied by the server. The kmalloc'd SMB response buffer is bounded, but nothing checks that de.name + de.namelen still lies inside tha…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93790] In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix out-of-…

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif mvmsta->tid_data was indexed by the TFD loop counter 'i' instead of the actual TID value 'tid'. This writes lq_color into a random tid_data slot unrelated to the BA entry. Since multi-TID blockack is not really in use, 'i' was always 0 and no harm was done. Add a …

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93288] In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: wait …

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state sashiko reports: "nfnl_log_net_exit() calls nf_log_unset(), which clears the logger pointer without an RCU grace period. Immediately after, ops_free_list() frees the per-net state while concurrent packets might still be executing nf_log_packet() und…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93782] In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: flush backend after…

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: flush backend after device ioctls vhost-scsi translates guest response descriptors into userspace iovecs when commands are submitted. Target-core completes those commands asynchronously, so VHOST_SET_MEM_TABLE can replace the memory table while an in-flight command still retains response iovecs translated through th…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93284] In the Linux kernel, the following vulnerability has been resolved: drm/pagemap: dma-unmap pages be…

In the Linux kernel, the following vulnerability has been resolved: drm/pagemap: dma-unmap pages before handling migration errors drm_pagemap_migrate_unmap_pages() relies on the pages array to determine which pages require DMA unmapping. However, drm_pagemap_migration_unlock_put_pages() clears the array as part of its cleanup, leaving drm_pagemap_migrate_unmap_pages() with no valid page informat…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93287] In the Linux kernel, the following vulnerability has been resolved: i2c: smbus: reject oversized bl…

In the Linux kernel, the following vulnerability has been resolved: i2c: smbus: reject oversized block transfers in the common path The SMBus block transfer length data->block[0] is validated in i2c_smbus_xfer_emulated() but that check runs too late for tracepoints and is skipped entirely when the adapter provides a native smbus_xfer implementation. This allows user-controlled oversized block le…

nvdaltovulnerabilidad CVSS 7.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93280] In the Linux kernel, the following vulnerability has been resolved: greybus: audio: bound the topol…

In the Linux kernel, the following vulnerability has been resolved: greybus: audio: bound the topology section sizes against the fetched size gb_audio_gb_get_topology() fetches a topology blob of a module-supplied size, and gbaudio_tplg_parse_data() then walks it by adding the module-supplied size_dais, size_controls and size_widgets fields to form the control, widget and route section offsets. …

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93282] In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix maximum allowed acce…

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix maximum allowed access checks The DACL permission check looks for an ACE matching the current user and falls back to the Everyone ACE. It does not consider an Authenticated Users ACE, even though an authenticated session is a member of that well-known group. As a result, opening a file whose access is granted through…

nvdaltovulnerabilidad CVSS 8.1 NVD

M Alto vulnerabilidad

24/09/2026

[CVE-2026-93277] In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Validate udata be…

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Validate udata before executing commands The destroy callbacks currently zero the udata output after tearing down driver resources. If the userspace access fails, uverbs preserves the uobject and allows the destroy callback to run again, even though the driver resource has already been freed. Call ib_no_udata_io()…

nvdaltovulnerabilidad CVSS 7.8 NVD