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Sicherheitslücken in linux-lowlatency-hwe-6.8 · Seite 65

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-2026-93140

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    udf: Mark LVID buffer as uptodate before marking it dirty

    In the Linux kernel, the following vulnerability has been resolved: udf: Mark LVID buffer as uptodate before marking it dirty When an I/O error occurs while writing the Logical Volume Integrity Descriptor (LVID) buffer to the block device, the block layer's completion handler (`end_buffer_write_sync()`) clears the `BH_Uptodate` flag on the buffer. However, the buffer still contains valid LVID data in memory. If the filesystem is subsequently remounted read-write or synced, `udf_open_lvid()` or `udf_sync_fs()` will modify the LVID buffer and call `mark_buffer_dirty()`. This triggers a spurious `WARN_ON_ONCE(!buffer_uptodate(bh))` warning in

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  2. CVE-2026-93138

    Hoch · CVSS 7.8EPSS 0,18%Keine Korrektur veröffentlicht

    bpf: Fix vmlinux BTF prep race in bpf_get_btf_vmlinux

    In the Linux kernel, the following vulnerability has been resolved: bpf: Fix vmlinux BTF prep race in bpf_get_btf_vmlinux bpf_get_btf_vmlinux() lazily parses the vmlinux BTF under the bpf_verifier_lock, but publishes the result through a plain store and re-checks it through a plain lockless load. Nothing orders the stores initializing the struct btf inside btf_parse_vmlinux() against the store publishing the pointer: On a weakly ordered arch, a concurrent first-time caller taking the lockless fast path could in principle observe the pointer before the parsed contents are visible. The mutex_unlock() does not help such a reader given it only

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  3. CVE-2026-93137

    Hoch · CVSS 7.8EPSS 0,16%Keine Korrektur veröffentlicht

    bpf: Fix use-after-free on mm_struct in bpf_find_vma()

    In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free on mm_struct in bpf_find_vma() bpf_find_vma() reads task->mm and calls mmap_read_trylock(mm) without holding a reference on the mm. On a foreign task, a concurrent exit_mm() can free the mm_struct between the lockless read and the trylock, resulting in a use-after-free. mm_struct is not SLAB_TYPESAFE_BY_RCU. For the current task, task->mm is stable. For a foreign task, pin the mm under task->alloc_lock and release it with mmput_async(), mirroring commit d8e27d2d22b6 ("bpf: fix mm lifecycle in open-coded task_vma iterator"). Use spin_trylock() instea

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  4. CVE-2026-93136

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    bus: mhi: ep: Fix device refcount leak in the error path of MHI device creation

    In the Linux kernel, the following vulnerability has been resolved: bus: mhi: ep: Fix device refcount leak in the error path of MHI device creation mhi_ep_create_device() takes one device reference for the UL channel and another for the DL channel after allocating the transfer device. These references are normally released by mhi_ep_destroy_device() before the device itself is removed. If dev_set_name() or device_add() fails, the error path currently drops only one reference. The remaining channel references keep the device from being released and leave the channels associated with a device that was never registered. Route both failures t

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  5. CVE-2026-93131

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    platform/x86: dell-privacy: Fix race condition

    In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-privacy: Fix race condition Accessing priv->features_present needs to happen with the list mutex being held, otherwise priv can be freed at any moment.

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  6. CVE-2026-93130

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    platform/x86: dell-wmi-base: Fix resource leak on module load failure

    In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-base: Fix resource leak on module load failure We need to properly clean up the SMBIOS request and the privacy driver when the module load fails.

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  7. CVE-2026-93129

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    platform/x86: dell-wmi-base: Fix handling of ultra performance key

    In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-base: Fix handling of ultra performance key The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields. Use the correct index for accessing the first data field to avoid a potential buffer overread.

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  8. CVE-2026-93128

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    platform/x86: lg-laptop: Fix LED resource handling

    In the Linux kernel, the following vulnerability has been resolved: platform/x86: lg-laptop: Fix LED resource handling The event notification callback might access kbd_backlight even when it was not successfully registered with the LED subsystem. The same happens inside acpi_remove(), where the LED devices are unregistered unconditionally. Fix this by tracking the availability of the kbd_backlight LED device and use devm_led_classdev_register() to let devres take care of unregistering the LED devices during removal. For this the parent device of the LED devices is changed to the native platform device.

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  9. CVE-2026-93126

    Nicht bewertetEPSS 0,2%Keine Korrektur veröffentlicht

    remoteproc: qcom_q6v5_adsp: Fix reference leak for device node

    In the Linux kernel, the following vulnerability has been resolved: remoteproc: qcom_q6v5_adsp: Fix reference leak for device node When calling of_parse_phandle_with_args(), the caller is responsible to call of_node_put() to release the reference of device node. In adsp_map_carveout, it does not release the reference.

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  10. CVE-2026-93125

    Hoch · CVSS 7.8EPSS 0,13%Keine Korrektur veröffentlicht

    bpf: Reject rdonly/rdwr_buf_size kfunc arguments that exceed u32 max

    In the Linux kernel, the following vulnerability has been resolved: bpf: Reject rdonly/rdwr_buf_size kfunc arguments that exceed u32 max check_kfunc_args() detects a kfunc argument named rdonly_buf_size or rdwr_buf_size and stores reg->var_off.value into meta->r0_size, a u64, and does not bound it. check_kfunc_call() later copies that value into the returned register's mem_size field: meta->r0_size = reg->var_off.value; ... regs[BPF_REG_0].mem_size = meta.r0_size; regs[BPF_REG_0].mem_size is u32. A constant whose upper 32 bits are set gets truncated instead of causing a load-time rejection, so the verifier records a PTR_TO_MEM regis

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  11. CVE-2026-93123

    Niedrig · CVSS 1.8EPSS 0,21%Keine Korrektur veröffentlicht

    serial: qcom-geni: do not advance stale DMA completions

    In the Linux kernel, the following vulnerability has been resolved: serial: qcom-geni: do not advance stale DMA completions The qcom GENI serial DMA TX completion path advances the transmit fifo by the number of bytes recorded in port->tx_remaining. If uart_flush_buffer() runs after the hardware has completed a DMA transfer but before the DMA completion interrupt has been handled, the serial core resets the transmit fifo while port->tx_remaining still describes the old DMA transfer. A previous fix avoided advancing an empty fifo by checking that the fifo length is at least tx_remaining. That still does not distinguish the old DMA payload

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  12. CVE-2026-93122

    Hoch · CVSS 7.8EPSS 0,18%Keine Korrektur veröffentlicht

    usb: gadget: uac: validate rate list length before storing

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uac: validate rate list length before storing UAC1 and UAC2 configfs rate-list attributes parse a comma-separated list of sampling rates and store each parsed value in fixed-size arrays. The arrays have UAC_MAX_RATES entries, but the store paths do not check that the input contains at most that many tokens before writing through opts->name##s[i++]. Writing more than ten rates therefore writes past the end of the p_srates[] or c_srates[] array in struct f_uac1_opts or struct f_uac2_opts. With CONFIG_UBSAN_BOUNDS enabled, writing an 11-entry rate list to the UA

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  13. CVE-2026-93120

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    usb: gadget: configfs: fix out-of-bounds read of qw_sign

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: configfs: fix out-of-bounds read of qw_sign os_desc_qw_sign_show() passes OS_STRING_QW_SIGN_LEN as the input length to utf16s_to_utf8s(), but that argument counts UTF-16 code units while OS_STRING_QW_SIGN_LEN (14) is the byte size of qw_sign[]. The array holds only OS_STRING_QW_SIGN_LEN / 2 (7) code units, so the conversion reads up to 7 units (14 bytes) past the end of qw_sign[] into the following members of struct gadget_info when the stored signature fills the array without a NUL terminator, exposing those bytes through the configfs attribute. The store pat

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  14. CVE-2026-93119

    Nicht bewertetEPSS 0,2%Keine Korrektur veröffentlicht

    usb: ljca: bound bank_num in ljca_enumerate_gpio()

    In the Linux kernel, the following vulnerability has been resolved: usb: ljca: bound bank_num in ljca_enumerate_gpio() ljca_enumerate_gpio() reads desc->bank_num from the device and loops valid_pin[i] = get_unaligned_le32(...) for i < bank_num. valid_pin[] holds only LJCA_MAX_GPIO_NUM / 32 = 2 entries. Two checks run before the loop. The reply length must match struct_size(desc, bank_desc, bank_num). The product pins_per_bank * bank_num must not exceed LJCA_MAX_GPIO_NUM. Neither one bounds bank_num against the size of valid_pin[]. The reply is capped at LJCA_MAX_PAYLOAD_SIZE (60) bytes, so the struct_size check limits bank_num to 9. A devi

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  15. CVE-2026-93118

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    usb: gadget: aspeed_udc: check endpoint DMA allocation

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: aspeed_udc: check endpoint DMA allocation ast_udc_probe() allocates a coherent DMA buffer used as the backing store for endpoint buffers. ast_udc_init_ep() derives per-endpoint buffer pointers from udc->ep0_buf, so a failed allocation is dereferenced during probe. Check the allocation before endpoint setup. The existing probe error path called ast_udc_remove(), which unregisters the gadget unconditionally and is not safe before usb_add_gadget_udc() succeeds. Add a local cleanup helper for probe failures so pre-registration failures only unwind the resources th

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  16. CVE-2026-93117

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    usb: fix UAF when probe runs concurrent to dyn ID removal

    In the Linux kernel, the following vulnerability has been resolved: usb: fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held, as remove_id_store can free the node. Thus, make a copy in usb_probe_interface. Clarify the documentation that the id parameter is only valid during the probe. USB serial has the same pattern, but it does not need fixing as the IDs cannot be removed via sysfs.

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  17. CVE-2026-93116

    Hoch · CVSS 7EPSS 0,16%Keine Korrektur veröffentlicht

    platform/x86: asus-wmi: fix resource leaks on probe failure

    In the Linux kernel, the following vulnerability has been resolved: platform/x86: asus-wmi: fix resource leaks on probe failure During driver initialization in asus_wmi_add(), various subsystems are registered sequentially. However, the error path labels are out of order relative to the registration sequence. Specifically: 1. If asus_wmi_custom_fan_curve_init() fails, the driver jumps to fail_custom_fan_curve. Because this label is placed below fail_sysfs, it bypasses the cleanup calls for the input device and sysfs groups, which were successfully registered before, leaking those resources. 2. If asus_screenpad_init() fails, the d

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  18. CVE-2026-93115

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL

    In the Linux kernel, the following vulnerability has been resolved: platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. mlxbf_pmc_probe() passes the result of ACPI_COMPANION() to acpi_device_hid(), which dereferences it, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. Accordingly, add a requisite ACPI_COMPANION() check again

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  19. CVE-2026-93114

    Nicht bewertetEPSS 0,17%Keine Korrektur veröffentlicht

    platform/surface: acpi-notify: Check ACPI companion before use

    In the Linux kernel, the following vulnerability has been resolved: platform/surface: acpi-notify: Check ACPI companion before use Since every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), platform drivers that rely on the existence of a device's ACPI companion object should verify its presence. san_probe() dereferences the result of ACPI_COMPANION() when installing the GSBUS address space handler, so force-binding the driver to a device without an ACPI companion leads to a NULL pointer dereference. The dereference was introduced when the probe function

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  20. CVE-2026-93113

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    clk: qcom: camcc-sc8280xp: unregister CAMCC_GDSC_CLK

    In the Linux kernel, the following vulnerability has been resolved: clk: qcom: camcc-sc8280xp: unregister CAMCC_GDSC_CLK With the introduction of sync_state support in the clk and pmdomain subsystems, the following warning happens when the unused clocks are shutdown in camcc-sc8280xp: [ 15.408367] titan_top_gdsc status stuck at 'on' [ 15.408429] WARNING: drivers/clk/qcom/gdsc.c:178 at gdsc_toggle_logic+0x14c/0x160, CPU#2: kworker/u32:1/14 [ 15.408462] Modules linked in: bnep vfat fat ath11k_pci(+) ath11k mac80211 cfg80211 mhi libarc4 snd_soc_wcd938x snd_soc_wcd938x_sdw snd_soc_wcd_classh hci_uart snd_soc_wcd_common sn

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