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In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-lts-xenial: 333. Davon im KEV-Katalog: 0.

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  1. CVE-2022-49725

    Hoch · CVSS 7.8EPSS 0,3%Keine Korrektur veröffentlicht

    i40e: Fix call trace in setup_tx_descriptors

    In the Linux kernel, the following vulnerability has been resolved: i40e: Fix call trace in setup_tx_descriptors After PF reset and ethtool -t there was call trace in dmesg sometimes leading to panic. When there was some time, around 5 seconds, between reset and test there were no errors. Problem was that pf reset calls i40e_vsi_close in prep_for_reset and ethtool -t calls i40e_vsi_close in diag_test. If there was not enough time between those commands the second i40e_vsi_close starts before previous i40e_vsi_close was done which leads to crash. Add check to diag_test if pf is in reset and don't start offline tests if it is true. Add neti

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  2. CVE-2022-49712

    Mittel · CVSS 5.5EPSS 0,26%Keine Korrektur veröffentlicht

    usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe of_parse_phandle() 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. of_node_put() will check NULL pointer.

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  3. CVE-2022-49710

    Mittel · CVSS 5.5EPSS 0,28%Keine Korrektur veröffentlicht

    dm mirror log: round up region bitmap size to BITS_PER_LONG

    In the Linux kernel, the following vulnerability has been resolved: dm mirror log: round up region bitmap size to BITS_PER_LONG The code in dm-log rounds up bitset_size to 32 bits. It then uses find_next_zero_bit_le on the allocated region. find_next_zero_bit_le accesses the bitmap using unsigned long pointers. So, on 64-bit architectures, it may access 4 bytes beyond the allocated size. Fix this bug by rounding up bitset_size to BITS_PER_LONG. This bug was found by running the lvm2 testsuite with kasan.

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  4. CVE-2022-49708

    Hoch · CVSS 7.1EPSS 0,28%Keine Korrektur veröffentlicht

    ext4: fix bug_on ext4_mb_use_inode_pa

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug_on ext4_mb_use_inode_pa Hulk Robot reported a BUG_ON: ================================================================== kernel BUG at fs/ext4/mballoc.c:3211! [...] RIP: 0010:ext4_mb_mark_diskspace_used.cold+0x85/0x136f [...] Call Trace: ext4_mb_new_blocks+0x9df/0x5d30 ext4_ext_map_blocks+0x1803/0x4d80 ext4_map_blocks+0x3a4/0x1a10 ext4_writepages+0x126d/0x2c30 do_writepages+0x7f/0x1b0 __filemap_fdatawrite_range+0x285/0x3b0 file_write_and_wait_range+0xb1/0x140 ext4_sync_file+0x1aa/0xca0 vfs_fsync_range+0xfb/0x260 do_fsync+0x48/0xa0 [...] =============

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  5. CVE-2022-49707

    Mittel · CVSS 5.5EPSS 0,28%Keine Korrektur veröffentlicht

    ext4: add reserved GDT blocks check

    In the Linux kernel, the following vulnerability has been resolved: ext4: add reserved GDT blocks check We capture a NULL pointer issue when resizing a corrupt ext4 image which is freshly clear resize_inode feature (not run e2fsck). It could be simply reproduced by following steps. The problem is because of the resize_inode feature was cleared, and it will convert the filesystem to meta_bg mode in ext4_resize_fs(), but the es->s_reserved_gdt_blocks was not reduced to zero, so could we mistakenly call reserve_backup_gdb() and passing an uninitialized resize_inode to it when adding new group descriptors. mkfs.ext4 /dev/sda 3G tune2fs -O ^r

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  6. CVE-2022-49700

    Hoch · CVSS 7.8EPSS 0,29%Keine Korrektur veröffentlicht

    mm/slub: add missing TID updates on slab deactivation

    In the Linux kernel, the following vulnerability has been resolved: mm/slub: add missing TID updates on slab deactivation The fastpath in slab_alloc_node() assumes that c->slab is stable as long as the TID stays the same. However, two places in __slab_alloc() currently don't update the TID when deactivating the CPU slab. If multiple operations race the right way, this could lead to an object getting lost; or, in an even more unlikely situation, it could even lead to an object being freed onto the wrong slab's freelist, messing up the `inuse` counter and eventually causing a page to be freed to the page allocator while it still contains sla

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  7. CVE-2022-49685

    Hoch · CVSS 7.8EPSS 0,28%Keine Korrektur veröffentlicht

    iio: trigger: sysfs: fix use-after-free on remove

    In the Linux kernel, the following vulnerability has been resolved: iio: trigger: sysfs: fix use-after-free on remove Ensure that the irq_work has completed before the trigger is freed. ================================================================== BUG: KASAN: use-after-free in irq_work_run_list Read of size 8 at addr 0000000064702248 by task python3/25 Call Trace: irq_work_run_list irq_work_tick update_process_times tick_sched_handle tick_sched_timer __hrtimer_run_queues hrtimer_interrupt Allocated by task 25: kmem_cache_alloc_trace iio_sysfs_trig_add dev_attr_store sysfs_kf_write kernfs_fop_write_iter

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  8. CVE-2022-49681

    Mittel · CVSS 5.5EPSS 0,26%Keine Korrektur veröffentlicht

    xtensa: xtfpga: Fix refcount leak bug in setup

    In the Linux kernel, the following vulnerability has been resolved: xtensa: xtfpga: Fix refcount leak bug in setup In machine_setup(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.

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  9. CVE-2022-49680

    Mittel · CVSS 5.5EPSS 0,26%Keine Korrektur veröffentlicht

    ARM: exynos: Fix refcount leak in exynos_map_pmu

    In the Linux kernel, the following vulnerability has been resolved: ARM: exynos: Fix refcount leak in exynos_map_pmu of_find_matching_node() 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. of_node_put() checks null pointer.

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  10. CVE-2022-49679

    Mittel · CVSS 5.5EPSS 0,27%Keine Korrektur veröffentlicht

    ARM: Fix refcount leak in axxia_boot_secondary

    In the Linux kernel, the following vulnerability has been resolved: ARM: Fix refcount leak in axxia_boot_secondary of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.

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  11. CVE-2022-49677

    Mittel · CVSS 5.5EPSS 0,26%Keine Korrektur veröffentlicht

    ARM: cns3xxx: Fix refcount leak in cns3xxx_init

    In the Linux kernel, the following vulnerability has been resolved: ARM: cns3xxx: Fix refcount leak in cns3xxx_init of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.

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  12. CVE-2022-49673

    Mittel · CVSS 5.5EPSS 0,28%Keine Korrektur veröffentlicht

    dm raid: fix KASAN warning in raid5_add_disks

    In the Linux kernel, the following vulnerability has been resolved: dm raid: fix KASAN warning in raid5_add_disks There's a KASAN warning in raid5_add_disk when running the LVM testsuite. The warning happens in the test lvconvert-raid-reshape-linear_to_raid6-single-type.sh. We fix the warning by verifying that rdev->saved_raid_disk is within limits.

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  13. CVE-2022-49668

    Mittel · CVSS 5.5EPSS 0,26%Keine Korrektur veröffentlicht

    PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events

    In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: exynos-ppmu: Fix refcount leak in of_get_devfreq_events of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. This function only calls of_node_put() in normal path, missing it in error paths. Add missing of_node_put() to avoid refcount leak.

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  14. CVE-2022-49667

    Hoch · CVSS 7.8EPSS 0,29%Keine Korrektur veröffentlicht

    net: bonding: fix use-after-free after 802.3ad slave unbind

    In the Linux kernel, the following vulnerability has been resolved: net: bonding: fix use-after-free after 802.3ad slave unbind commit 0622cab0341c ("bonding: fix 802.3ad aggregator reselection"), resolve case, when there is several aggregation groups in the same bond. bond_3ad_unbind_slave will invalidate (clear) aggregator when __agg_active_ports return zero. So, ad_clear_agg can be executed even, when num_of_ports!=0. Than bond_3ad_unbind_slave can be executed again for, previously cleared aggregator. NOTE: at this time bond_3ad_unbind_slave will not update slave ports list, because lag_ports==NULL. So, here we got slave ports, pointing

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  15. CVE-2022-49661

    Mittel · CVSS 5.5EPSS 0,27%Keine Korrektur veröffentlicht

    can: gs_usb: gs_usb_open/close(): fix memory leak

    In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_open/close(): fix memory leak The gs_usb driver appears to suffer from a malady common to many USB CAN adapter drivers in that it performs usb_alloc_coherent() to allocate a number of USB request blocks (URBs) for RX, and then later relies on usb_kill_anchored_urbs() to free them, but this doesn't actually free them. As a result, this may be leaking DMA memory that's been used by the driver. This commit is an adaptation of the techniques found in the esd_usb2 driver where a similar design pattern led to a memory leak. It explicitly frees the RX URBs and

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  16. CVE-2022-49657

    Mittel · CVSS 5.5EPSS 0,28%Keine Korrektur veröffentlicht

    usbnet: fix memory leak in error case

    In the Linux kernel, the following vulnerability has been resolved: usbnet: fix memory leak in error case usbnet_write_cmd_async() mixed up which buffers need to be freed in which error case. v2: add Fixes tag v3: fix uninitialized buf pointer

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  17. CVE-2022-49647

    Hoch · CVSS 7.8EPSS 0,29%Keine Korrektur veröffentlicht

    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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  18. CVE-2022-49641

    Mittel · CVSS 4.7EPSS 0,18%Keine Korrektur veröffentlicht

    sysctl: Fix data races in proc_douintvec().

    In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data races in proc_douintvec(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_douintvec() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_douintvec() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.

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