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

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  1. CVE-2022-49648

    Mittel · CVSS 5.5EPSS 0,27%Korrektur verfügbar

    tracing/histograms: Fix memory leak problem

    In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Fix memory leak problem This reverts commit 46bbe5c671e06f070428b9be142cc4ee5cedebac. As commit 46bbe5c671e0 ("tracing: fix double free") said, the "double free" problem reported by clang static analyzer is: > In parse_var_defs() if there is a problem allocating > var_defs.expr, the earlier var_defs.name is freed. > This free is duplicated by free_var_defs() which frees > the rest of the list. However, if there is a problem allocating N-th var_defs.expr: + in parse_var_defs(), the freed 'earlier var_defs.name' is actually the N-th var_def

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  2. CVE-2022-49647

    Hoch · CVSS 7.8EPSS 0,29%Korrektur verfügbar

    cgroup: Use separate src/dst nodes when preloading css_sets for migration

    In the Linux kernel, the following vulnerability has been resolved: cgroup: Use separate src/dst nodes when preloading css_sets for migration Each cset (css_set) is pinned by its tasks. When we're moving tasks around across csets for a migration, we need to hold the source and destination csets to ensure that they don't go away while we're moving tasks about. This is done by linking cset->mg_preload_node on either the mgctx->preloaded_src_csets or mgctx->preloaded_dst_csets list. Using the same cset->mg_preload_node for both the src and dst lists was deemed okay as a cset can't be both the source and destination at the same time. Unfortuna

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  3. CVE-2022-49646

    Mittel · CVSS 5.5EPSS 0,27%Korrektur verfügbar

    wifi: mac80211: fix queue selection for mesh/OCB interfaces

    In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix queue selection for mesh/OCB interfaces When using iTXQ, the code assumes that there is only one vif queue for broadcast packets, using the BE queue. Allowing non-BE queue marking violates that assumption and txq->ac == skb_queue_mapping is no longer guaranteed. This can cause issues with queue handling in the driver and also causes issues with the recent ATF change, resulting in an AQL underflow warning.

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  4. CVE-2022-49645

    Hoch · CVSS 7.8EPSS 0,28%Korrektur verfügbar

    drm/panfrost: Fix shrinker list corruption by madvise IOCTL

    In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix shrinker list corruption by madvise IOCTL Calling madvise IOCTL twice on BO causes memory shrinker list corruption and crashes kernel because BO is already on the list and it's added to the list again, while BO should be removed from the list before it's re-added. Fix it.

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  5. CVE-2022-49644

    Mittel · CVSS 5.5EPSS 0,28%Korrektur verfügbar

    drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector()

    In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector() If drm_connector_init fails, intel_connector_free will be called to take care of proper free. So it is necessary to drop the refcount of port before intel_connector_free. (cherry picked from commit cea9ed611e85d36a05db52b6457bf584b7d969e2)

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  6. CVE-2022-49643

    Hoch · CVSS 7.1EPSS 0,28%Korrektur verfügbar

    ima: Fix a potential integer overflow in ima_appraise_measurement

    In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in ima_appraise_measurement When the ima-modsig is enabled, the rc passed to evm_verifyxattr() may be negative, which may cause the integer overflow problem.

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  7. CVE-2022-49642

    Mittel · CVSS 5.5EPSS 0,26%Korrektur verfügbar

    net: stmmac: dwc-qos: Disable split header for Tegra194

    In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwc-qos: Disable split header for Tegra194 There is a long-standing issue with the Synopsys DWC Ethernet driver for Tegra194 where random system crashes have been observed [0]. The problem occurs when the split header feature is enabled in the stmmac driver. In the bad case, a larger than expected buffer length is received and causes the calculation of the total buffer length to overflow. This results in a very large buffer length that causes the kernel to crash. Why this larger buffer length is received is not clear, however, the feedback from the NVIDIA desig

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  8. CVE-2022-49639

    Mittel · CVSS 4.7EPSS 0,18%Korrektur verfügbar

    cipso: Fix data-races around sysctl.

    In the Linux kernel, the following vulnerability has been resolved: cipso: Fix data-races around sysctl. While reading cipso sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

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  10. CVE-2022-49637

    Mittel · CVSS 4.7EPSS 0,18%Korrektur verfügbar

    ipv4: Fix a data-race around sysctl_fib_sync_mem.

    In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix a data-race around sysctl_fib_sync_mem. While reading sysctl_fib_sync_mem, it can be changed concurrently. So, we need to add READ_ONCE() to avoid a data-race.

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  11. CVE-2022-49631

    Mittel · CVSS 4.7EPSS 0,18%Korrektur verfügbar

    raw: Fix a data-race around sysctl_raw_l3mdev_accept.

    In the Linux kernel, the following vulnerability has been resolved: raw: Fix a data-race around sysctl_raw_l3mdev_accept. While reading sysctl_raw_l3mdev_accept, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader.

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  12. CVE-2022-49626

    Hoch · CVSS 7.8EPSS 0,28%Korrektur verfügbar

    sfc: fix use after free when disabling sriov

    In the Linux kernel, the following vulnerability has been resolved: sfc: fix use after free when disabling sriov Use after free is detected by kfence when disabling sriov. What was read after being freed was vf->pci_dev: it was freed from pci_disable_sriov and later read in efx_ef10_sriov_free_vf_vports, called from efx_ef10_sriov_free_vf_vswitching. Set the pointer to NULL at release time to not trying to read it later. Reproducer and dmesg log (note that kfence doesn't detect it every time): $ echo 1 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs $ echo 0 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs BUG: KFENCE: use-after-free

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  13. CVE-2022-49625

    Mittel · CVSS 5.7EPSS 0,29%Korrektur verfügbar

    sfc: fix kernel panic when creating VF

    In the Linux kernel, the following vulnerability has been resolved: sfc: fix kernel panic when creating VF When creating VFs a kernel panic can happen when calling to efx_ef10_try_update_nic_stats_vf. When releasing a DMA coherent buffer, sometimes, I don't know in what specific circumstances, it has to unmap memory with vunmap. It is disallowed to do that in IRQ context or with BH disabled. Otherwise, we hit this line in vunmap, causing the crash: BUG_ON(in_interrupt()); This patch reenables BH to release the buffer. Log messages when the bug is hit: kernel BUG at mm/vmalloc.c:2727! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU:

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  14. CVE-2022-49621

    Mittel · CVSS 5.5EPSS 0,26%Korrektur verfügbar

    cpufreq: pmac32-cpufreq: Fix refcount leak bug

    In the Linux kernel, the following vulnerability has been resolved: cpufreq: pmac32-cpufreq: Fix refcount leak bug In pmac_cpufreq_init_MacRISC3(), we need to add corresponding of_node_put() for the three node pointers whose refcount have been incremented by of_find_node_by_name().

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  16. CVE-2022-49619

    Mittel · CVSS 5.5EPSS 0,27%Korrektur verfügbar

    net: sfp: fix memory leak in sfp_probe()

    In the Linux kernel, the following vulnerability has been resolved: net: sfp: fix memory leak in sfp_probe() sfp_probe() allocates a memory chunk from sfp with sfp_alloc(). When devm_add_action() fails, sfp is not freed, which leads to a memory leak. We should use devm_add_action_or_reset() instead of devm_add_action().

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  17. CVE-2022-49611

    Mittel · CVSS 6.9EPSS 0,28%Korrektur verfügbar

    x86/speculation: Fill RSB on vmexit for IBRS

    In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.

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  18. CVE-2022-49609

    Mittel · CVSS 5.5EPSS 0,27%Korrektur verfügbar

    power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe

    In the Linux kernel, the following vulnerability has been resolved: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

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  19. CVE-2022-49608

    Mittel · CVSS 5.5EPSS 0,27%Korrektur verfügbar

    pinctrl: ralink: Check for null return of devm_kcalloc

    In the Linux kernel, the following vulnerability has been resolved: pinctrl: ralink: Check for null return of devm_kcalloc Because of the possible failure of the allocation, data->domains might be NULL pointer and will cause the dereference of the NULL pointer later. Therefore, it might be better to check it and directly return -ENOMEM without releasing data manually if fails, because the comment of the devm_kmalloc() says "Memory allocated with this function is automatically freed on driver detach.".

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  20. CVE-2022-49607

    Mittel · CVSS 4.7EPSS 0,19%Korrektur verfügbar

    perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()

    In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix data race between perf_event_set_output() and perf_mmap_close() Yang Jihing reported a race between perf_event_set_output() and perf_mmap_close(): CPU1 CPU2 perf_mmap_close(e2) if (atomic_dec_and_test(&e2->rb->mmap_count)) // 1 - > 0 detach_rest = true ioctl(e1, IOC_SET_OUTPUT, e2) perf_event_set_output(e1, e2) ... list_for_each_entry_rcu(e, &e2->rb->event_list, rb_entry) ring_buffer_attach(e, NULL); // e1 isn't yet added and // therefore not detached ring_buffer_attach(e1, e2->rb) li

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