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Sicherheitslücken in linux-lowlatency-hwe-6.8 · Seite 67

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-lowlatency-hwe-6.8: 759. Davon im KEV-Katalog: 0.

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  1. CVE-2026-93085

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    firmware: arm_scmi: Reject out of range DT protocol IDs

    In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Reject out of range DT protocol IDs SCMI protocol IDs carried in message headers are limited by MSG_PROTOCOL_ID_MASK. The DT parsing paths noticed protocol IDs outside that range, but only logged an error and then kept processing the invalid value. That lets a malformed 32-bit DT reg value reach helpers which take a u8 protocol ID, where it can be truncated and/or treated as a different protocol. For channel setup, two different out-of-range values can also be used as distinct IDR keys while aliasing the generated SCMI protocol identity. Skip DT proto

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  2. CVE-2026-93084

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    firmware: arm_scmi: Drop handle on protocol bind failures

    In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Drop handle on protocol bind failures The SCMI bus notifier acquires an SCMI handle when the driver core emits BUS_NOTIFY_BIND_DRIVER, before invoking the protocol driver probe callback. The protocol probe path only checks whether sdev->handle is set. If device_link_add() fails after the handle has been acquired, the protocol device can still bind with a valid handle but without the dependency link to the SCMI parent. A concurrent parent unbind can then miss the child and tear down the SCMI instance while the child still holds a handle into it. If the

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  3. CVE-2026-93083

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    firmware: arm_scmi: Unwind TX receiver mailbox setup failure

    In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Unwind TX receiver mailbox setup failure mailbox_chan_setup() can request an additional unidirectional TX receiver channel after successfully acquiring the primary channel. If that second request fails, the function returns immediately and leaves the primary channel allocated. Unwind the primary mailbox channel before returning the error so probe deferral or other setup failures do not leave the channel busy for later probe attempts.

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  4. CVE-2026-93081

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    firmware: arm_scmi: Fix SCMI device destroy lifetimes

    In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix SCMI device destroy lifetimes scmi_child_dev_find() drops the reference returned by device_find_child() before returning the scmi_device pointer. A concurrent unregister can then release the device while the destroy path is still using the returned pointer. Make the lookup helper return the device_find_child() reference and keep it until scmi_device_destroy() has finished unregistering the child. Also split device_unregister() in __scmi_device_destroy() so the SCMI bus ID is not made reusable until after device_del() has removed the old scmi_dev.N

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  5. CVE-2026-93073

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    dax: read holder_ops once in dax_holder_notify_failure()

    In the Linux kernel, the following vulnerability has been resolved: dax: read holder_ops once in dax_holder_notify_failure() dax_holder_notify_failure() reads dax_dev->holder_ops twice without READ_ONCE() -- once for the NULL check and once for the indirect notify_failure() call. A concurrent fs_put_dax() can clear holder_ops between the two reads, so the check can observe a non-NULL pointer while the call dereferences NULL. (kill_dax() also clears holder_ops, but only after synchronize_srcu(), so it cannot race a reader that is inside dax_read_lock(); fs_put_dax() does no such synchronization.) Fetch holder_ops once into a local with READ

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  6. CVE-2026-93072

    Nicht bewertetEPSS 0,2%Keine Korrektur veröffentlicht

    irqchip/renesas-irqc: Fix generic interrupt chip leak on remove

    In the Linux kernel, the following vulnerability has been resolved: irqchip/renesas-irqc: Fix generic interrupt chip leak on remove The driver allocates domain generic chips probe. However, on driver removal, the generic chips are not automatically freed when the interrupt domain is removed because the domain flags do not include IRQ_DOMAIN_FLAG_DESTROY_GC. This causes both the domain generic chips structure and the associated generic chips to be leaked. Additionally, the generic chips remain on the global list and may later be accessed by generic interrupt chip suspend, resume, or shutdown callbacks after the driver has been removed, pote

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  7. CVE-2026-93067

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    drm/bridge: tc358767: clamp the reported AUX read size to the request

    In the Linux kernel, the following vulnerability has been resolved: drm/bridge: tc358767: clamp the reported AUX read size to the request tc_aux_transfer() clamps an AUX read to the payload limit: size_t size = min_t(size_t, DP_AUX_MAX_PAYLOAD_BYTES - 1, msg->size); After the transfer it replaces size with the byte count the controller reports in AUX_BYTES: if (size) size = FIELD_GET(AUX_BYTES, auxstatus); AUX_BYTES is GENMASK(15, 8), so it can be up to 255. Nothing clamps it back to the request. tc_aux_read_data() reads that many bytes into the 16-byte auxrdata stack buffer, then copies them into the caller buffer. A reported count

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  8. CVE-2026-93065

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    wifi: iwlwifi: fix counter type in iwl_fwrt_dump_error_logs

    In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix counter type in iwl_fwrt_dump_error_logs The loop counter 'count' was declared as u8 while num_pc is u32. If firmware advertises more than 255 PC entries the counter wraps back to zero and the loop never terminates potentially causing an infinite loop or reading past the allocated pc_data array. Change the declaration to u32 to match num_pc.

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  9. CVE-2026-93064

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser

    In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser iwl_mvm_frob_txf_key_iter() tracks the last matched byte position in loop variable 'i'. When a full key match is found (match == keylen), 'i' points at the last byte of the matched key. The memset start offset should therefore be i + 1 - keylen, not i - keylen; the current code zeroes one byte before the match and leaves the final key byte un-sanitised.

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  10. CVE-2026-93063

    Hoch · CVSS 8.4EPSS 0,21%Keine Korrektur veröffentlicht

    wifi: iwlwifi: mei: check SAP message length before reading it

    In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mei: check SAP message length before reading it Verify the SAP message size is not larger than the local buffer before reading the message to avoid buffer overflow.

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  11. CVE-2026-93062

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    wifi: iwlwifi: guard against division by zero in iwl_dbg_tlv_alloc_fragments

    In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: guard against division by zero in iwl_dbg_tlv_alloc_fragments Make sure we don't end-up with a num_frags = 0 situation. For that, check that the required size is not 0 and put a checker on num_frags as well.

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  12. CVE-2026-93061

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    gpu: host1x: Avoid stack over-read in debug output helpers

    In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Avoid stack over-read in debug output helpers host1x_debug_output() and host1x_debug_cont() used vsnprintf(), which returns the length the formatted string would have reached with an unbounded buffer. That return value was passed straight to o->fn as the number of bytes to emit. This could cause a read past end of the output buffer if a call to host1x_debug_* produced a string longer than 256 bytes. This only affected the debugfs files as the printk debug sink ignores the number of bytes. In practice, this is very unlikely to occur. Fix by switching to vscnpr

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  13. CVE-2026-93058

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    drm/msm: Only fini scheduler after successful init

    In the Linux kernel, the following vulnerability has been resolved: drm/msm: Only fini scheduler after successful init msm_ringbuffer_new() destroys a partially initialized ring through msm_ringbuffer_destroy() when an allocation or scheduler setup step fails. If drm_sched_init() fails before it finishes initializing the scheduler, the failure path still calls drm_sched_fini(). That teardown path assumes the scheduler work items, lists, and workqueue state were initialized. Track successful scheduler initialization and call drm_sched_fini() only after drm_sched_init() returned 0. This issue was found by a static analysis checker and conf

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  14. CVE-2026-93056

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    usb: gadget: f_uac1_legacy: remove broken string configfs attributes

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_uac1_legacy: remove broken string configfs attributes The UAC1_STR_ATTRIBUTE macro defines configfs show/store handlers for the fn_play, fn_cap, and fn_cntl string options. The store function contains an inverted null check on the kstrndup() return value. This means every write attempt returns -ENOMEM on success and dereferences a NULL pointer on allocation failure. The attributes have been broken and unused for many years. Remove the UAC1_STR_ATTRIBUTE macro and the three attributes it generated. The internal defaults (FILE_PCM_PLAYBACK, FILE_PCM_CAPTURE,

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  15. CVE-2026-93055

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    UDF symlink pathComponent header OOB read

    In the Linux kernel, the following vulnerability has been resolved: UDF symlink pathComponent header OOB read udf_symlink_filler() can enter udf_pc_to_char() with a partial pathComponent header. Validate that enough input remains for a complete pathComponent header before accessing it. Reject malformed symlink data that would otherwise make udf_pc_to_char() perform an out-of-bounds read.

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  16. CVE-2026-93054

    Hoch · CVSS 7EPSS 0,15%Keine Korrektur veröffentlicht

    uio: Fix stale info pointer in failed registration path

    In the Linux kernel, the following vulnerability has been resolved: uio: Fix stale info pointer in failed registration path After device_add(), the UIO device is visible to userspace and /dev/uioX can be opened. If a later setup step fails, __uio_register_device() unwinds the device but leaves idev->info pointing at the caller-owned struct uio_info. That is unsafe when an opener races with the failed registration path. The open file keeps a reference to the uio_device, while the caller sees registration failure and may free its struct uio_info. Later file operations can then follow idev->info and dereference freed memory. Handle post-devi

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  17. CVE-2026-93053

    Nicht bewertetEPSS 0,18%Keine Korrektur veröffentlicht

    speakup: keyhelp: guard letter_offsets possible out-of-range indexing

    In the Linux kernel, the following vulnerability has been resolved: speakup: keyhelp: guard letter_offsets possible out-of-range indexing help_init() builds letter_offsets[] by using the first byte of each function name as an index via `(start & 31) - 1`. If function_names are overridden from sysfs (root) with a name starting outside [a–z], the index underflows or exceeds the array, leading to OOB write. Function names can be overridden with the following commands as root: modprobe speakup_soft echo "0 _bad" > /sys/accessibility/speakup/i18n/function_names # then press Insert+2 on /dev/tty This fix checks the first letter in

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  18. CVE-2026-93052

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    misc: bcm-vk: Use acquire/release for msgq_inited

    In the Linux kernel, the following vulnerability has been resolved: misc: bcm-vk: Use acquire/release for msgq_inited bcm_vk_sync_msgq() fills the message queue information and then sets msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the message queues and their cached queue information. atomic_set()/atomic_read() do not order those accesses. A reader can see msgq_inited set while still seeing stale queue information. Use release when publishing the initialized queues and acquire when checking the gate. Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the gate and does not publish queue state to read

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  19. CVE-2026-93051

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    misc: ad525x_dpot: use driver core groups for sysfs files

    In the Linux kernel, the following vulnerability has been resolved: misc: ad525x_dpot: use driver core groups for sysfs files ad_dpot_probe() creates per-RDAC sysfs files manually and then optionally creates the command sysfs group. This leaves probe responsible for rolling back partial sysfs state and makes remove responsible for matching every file that probe created. Move the device attributes into driver core dev_groups for the I2C and SPI drivers and use an is_visible() callback to expose only the attributes supported by the probed device. With this shape, the driver core creates the sysfs files only after probe succeeds and removes t

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  20. CVE-2026-93050

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    ipack: ipoctal: fix UAF, null-ptr-deref, and use-after-free in cleanup on remove

    In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix UAF, null-ptr-deref, and use-after-free in cleanup on remove Three issues arise when the device is removed while a tty session is still active: 1. UAF of struct ipoctal: the remove callback frees ipoctal via kfree() while tty ops may still access it. Fix by introducing kref-based lifetime management — kref is taken in install() when a tty is opened and released in cleanup() when the tty is finally destroyed; remove() uses kref_put() instead of kfree(). 2. NULL dereference in ipoctal_write_tty(): __ipoctal_remove() frees xmit_buf via tty

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