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Sicherheitslücken in linux-gkeop-5.4 · Seite 168

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-gkeop-5.4: 1109. Davon im KEV-Katalog: 0.

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  1. CVE-2026-80612

    Kritisch · CVSS 9.8EPSS 0,55%Keine Korrektur veröffentlicht

    net: lwtunnel: Drop skb metadata before LWT encapsulation

    In the Linux kernel, the following vulnerability has been resolved: net: lwtunnel: Drop skb metadata before LWT encapsulation skb metadata is meant for passing information between XDP and TC. It lives in the skb headroom, immediately before skb->data. LWT programs cannot access the __sk_buff->data_meta pseudo-pointer to metadata. However, LWT encapsulation prepends outer headers, moving skb->data back over the headroom where the metadata sits. On an RX-originated (forwarded) packet that still carries XDP metadata this goes wrong in two different ways, depending on the encap type: 1. Non-BPF LWT encaps (mpls, seg6, ioam6 ...) call skb_push

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  2. CVE-2026-80611

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    ACPI: processor_idle: Mark LPI enter functions as __cpuidle

    In the Linux kernel, the following vulnerability has been resolved: ACPI: processor_idle: Mark LPI enter functions as __cpuidle When function tracing or Kprobes is enabled, entering an ACPI Low Power Idle (LPI) state triggers the following RCU splat: RCU not on for: acpi_idle_lpi_enter+0x4/0xd8 WARNING: CPU: 8 PID: 0 at include/linux/trace_recursion.h:162 function_trace_call+0x1e8/0x228 The acpi_idle_lpi_enter() function is invoked within the cpuidle path after RCU has already been disabled for the current local CPU. Consequently, ftrace's function_trace_call() expects RCU to be actively watching before recording trace data, emitting

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  3. CVE-2026-80610

    Nicht bewertetEPSS 0,2%Keine Korrektur veröffentlicht

    net: enetc: fix potential divide-by-zero when num_vsi is zero

    In the Linux kernel, the following vulnerability has been resolved: net: enetc: fix potential divide-by-zero when num_vsi is zero For i.MX94 series, all the standalone ENETCs do not support SR-IOV, so pf->caps.num_vsi is zero. This leads to a divide-by-zero in enetc4_default_rings_allocation() when distributing rings among PF and VFs. Division by zero is undefined behavior in C. On ARM64, the UDIV/SDIV instructions silently return zero rather than raising an exception, so the issue does not cause a visible crash. However, relying on this behavior is incorrect and poses a cross-platform compatibility risk. Add an explicit check for num_vsi

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  5. CVE-2026-80608

    Hoch · CVSS 8.8EPSS 0,17%Keine Korrektur veröffentlicht

    accel/amdxdna: Fix iommu domain lifetime race during device removal

    In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix iommu domain lifetime race during device removal When force_iova mode is enabled, amdxdna_remove() frees xdna->domain. If amdxdna_gem_obj_free() is called after device removal, it may attempt to access xdna->domain, resulting in a use-after-free. Fix the race by adding freeing xdna->domain as a managed release action, so its lifetime is managed by DRM and remains valid until all managed resources are released.

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  6. CVE-2026-80607

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg

    In the Linux kernel, the following vulnerability has been resolved: tracing/probes: Remove WARN_ON_ONCE from parse_btf_arg Sashiko found that user can cause this WARN_ON_ONCE() easily with adding a kprobe event based on a raw address with BTF parameter. Since this is not an unexpected condition, remove the WARN_ON_ONCE().

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  7. CVE-2026-80606

    Hoch · CVSS 7.8EPSS 0,17%Keine Korrektur veröffentlicht

    drm/xe/userptr: Hold notifier_lock for write on inject test path

    In the Linux kernel, the following vulnerability has been resolved: drm/xe/userptr: Hold notifier_lock for write on inject test path When CONFIG_DRM_XE_USERPTR_INVAL_INJECT=y, xe_pt_svm_userptr_pre_commit() runs vma_check_userptr() with the svm notifier_lock taken for read. The test injection causes vma_check_userptr() to call xe_vma_userptr_force_invalidate(), which feeds into xe_vma_userptr_do_inval() with drm_gpusvm_ctx.in_notifier=true. That flag tells drm_gpusvm_unmap_pages() the caller already holds notifier_lock for write and only asserts the mode. Because the caller actually holds it for read, the assertion fires: WARNING: driver

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  8. CVE-2026-80605

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()

    In the Linux kernel, the following vulnerability has been resolved: HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait() In picolcd_send_and_wait(), an integer overflow of the signed loop counter 'k' can theoretically lead to a NULL pointer dereference of 'raw_data'. If the loop executes more than INT_MAX times, 'k' becomes negative, making the condition 'k < size' true even when 'size' is 0. Change the type of 'k' to 'unsigned int' to prevent the overflow and eliminate the out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. [[email protected]: extended hash

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  9. CVE-2026-80604

    Hoch · CVSS 8.8EPSS 0,41%Keine Korrektur veröffentlicht

    HID: core: Fix OOB read in hid_get_report for numbered reports

    In the Linux kernel, the following vulnerability has been resolved: HID: core: Fix OOB read in hid_get_report for numbered reports When a caller passes a size of 0 to hid_report_raw_event() for a numbered report, the function originally called hid_get_report() before performing any size validation. Inside hid_get_report(), if the report is numbered (report_enum->numbered is true), it unconditionally dereferences data[0] to extract the report ID. With a size of 0, this results in an out-of-bounds read or kernel panic. Fix this by moving the numbered report size validation check before the call to hid_get_report(), ensuring that size is at

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  10. CVE-2026-80603

    Kritisch · CVSS 9.1EPSS 0,6%Keine Korrektur veröffentlicht

    netfilter: nf_conntrack_irc: fix parse_dcc() off-by-one OOB read

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_irc: fix parse_dcc() off-by-one OOB read parse_dcc() treats data_end as an inclusive end pointer, but its only caller passes data_limit = ib_ptr + datalen, which points one past the last valid byte. The newline search loop iterates while tmp <= data_end, so when no newline is present, *tmp is read at tmp == data_end, one byte beyond the region filled by skb_header_pointer(). irc_buffer is kmalloc'd as MAX_SEARCH_SIZE + 1 bytes and datalen is capped at MAX_SEARCH_SIZE, so the stray read does not fault. The byte is uninitialized or stale; if it cont

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  11. CVE-2026-80602

    Nicht bewertetEPSS 0,21%Keine Korrektur veröffentlicht

    perf/x86/amd/lbr: Fix kernel address leakage

    In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/lbr: Fix kernel address leakage A user-only branch stack can contain branches that originate from the kernel. As a result, kernel addresses are exposed to user space even when PERF_SAMPLE_BRANCH_USER is requested. On AMD processors supporting X86_FEATURE_AMD_LBR_V2, perf can still report SYSRET/ERET entries for which the branch-from addresses are in the kernel. E.g. $ perf record -e cycles -o - -j any,save_type,u -- \ perf bench syscall basic --loop 1000 | \ perf script -i - -F brstack|tr ' ' '\n'| \ grep -E '0x[89a-f][0-9a-f]{15}'

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  12. CVE-2026-80601

    Hoch · CVSS 8.8EPSS 0,4%Keine Korrektur veröffentlicht

    batman-adv: gw: acquire ethernet header only after skb realloc

    In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

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  13. CVE-2026-80600

    Kritisch · CVSS 9.8EPSS 0,73%Keine Korrektur veröffentlicht

    batman-adv: dat: acquire ARP hw source only after skb realloc

    In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: acquire ARP hw source only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

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  14. CVE-2026-80599

    Hoch · CVSS 8.1EPSS 0,42%Keine Korrektur veröffentlicht

    batman-adv: dat: ensure accessible eth_hdr proto field

    In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: ensure accessible eth_hdr proto field When batadv_get_vid() accesses the proto field of the ethernet header, it is not checking if the data itself is accessible. The caller is responsible for it. But in contrast to other call sites, batadv_dat_get_vid() and its caller didn't make sure this is true. This could have caused an out-of-bounds access.

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  15. CVE-2026-80598

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

    ntfs3: fix out-of-bounds read in decompress_lznt

    In the Linux kernel, the following vulnerability has been resolved: ntfs3: fix out-of-bounds read in decompress_lznt decompress_lznt() does not validate array index bounds before accessing the decompression table. A corrupted NTFS3 image with invalid compressed data can trigger an out-of-bounds read. Add index bounds checking to prevent the OOB access.

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  16. CVE-2026-80597

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    mtd: maps: vmu-flash: fix NULL pointer dereference in initialization

    In the Linux kernel, the following vulnerability has been resolved: mtd: maps: vmu-flash: fix NULL pointer dereference in initialization The mtd_info contains a struct device, which must be linked to its parent. Without this, the initialization of the MTD fails with a NULL pointer dereference.

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  17. CVE-2026-80596

    Hoch · CVSS 8.4EPSS 0,2%Keine Korrektur veröffentlicht

    Input: ims-pcu - only expose sysfs attributes on control interface

    In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - only expose sysfs attributes on control interface When the driver was converted to use the driver core to instantiate device attributes (via .dev_groups in the usb_driver structure), the attributes started appearing on all interfaces bound to the driver. Since the ims-pcu driver manually claims the secondary data interface during probe, the driver core automatically creates the sysfs attributes for that interface as well. However, the driver only supports these attributes on the primary control interface. Data interfaces lack the necessary descriptors and

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  18. CVE-2026-80595

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    Input: ims-pcu - add response length checks

    In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - add response length checks The driver processes response data from device buffers without verifying that the device actually sent enough data. This can lead to out-of-bounds reads or processing stale data. Add checks for the expected response length before accessing the buffers.

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  19. CVE-2026-80594

    Nicht bewertetEPSS 0,22%Keine Korrektur veröffentlicht

    Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing

    In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing The driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc() by iterating through the extra descriptor data. However, it does not verify that the bLength of each descriptor is at least 2. A malicious device could provide a descriptor with bLength = 0, leading to an infinite loop in the driver. Add a check to ensure bLength is at least 2 before proceeding with parsing.

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  20. CVE-2026-80593

    Hoch · CVSS 8.4EPSS 0,2%Keine Korrektur veröffentlicht

    hwmon: (asus_atk0110) Check package count before accessing element

    In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus_atk0110) Check package count before accessing element atk_ec_present() walks the management group package returned by the GGRP ACPI method and, for each sub-package, reads its first element: id = &obj->package.elements[0]; if (id->type != ACPI_TYPE_INTEGER) without checking that the sub-package is non-empty. ACPICA allocates the element array with exactly package.count entries, so for a sub-package with a zero count this reads past the allocation. The sibling function atk_debugfs_ggrp_open() performs the same access but skips empty packages with a package

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