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Уязвимости linux-kvm · Страница 160

За последние 30 дней в linux-kvm опубликовано уязвимостей: 323; в каталоге KEV: 0.

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  1. CVE-2022-50546

    Высокий · CVSS 7.8EPSS 0,22%Нет опубликованного исправления

    ext4: fix uninititialized value in 'ext4_evict_inode'

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix uninititialized value in 'ext4_evict_inode' Syzbot found the following issue: ===================================================== BUG: KMSAN: uninit-value in ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180 ext4_evict_inode+0xdd/0x26b0 fs/ext4/inode.c:180 evict+0x365/0x9a0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput+0x985/0xdd0 fs/inode.c:1773 __ext4_new_inode+0xe54/0x7ec0 fs/ext4/ialloc.c:1361 ext4_mknod+0x376/0x840 fs/ext4/namei.c:2844 vfs_mknod+0x79d/0x830 fs/namei.c:3914 do_mknodat+0x47d/0xaa0 __do_sys_mknodat fs/namei.c:3992 [inline] _

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  2. CVE-2022-50539

    Средний · CVSS 5.5EPSS 0,16%Нет опубликованного исправления

    ARM: OMAP2+: omap4-common: Fix refcount leak bug

    In the Linux kernel, the following vulnerability has been resolved: ARM: OMAP2+: omap4-common: Fix refcount leak bug In omap4_sram_init(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  3. CVE-2023-53651

    Высокий · CVSS 7.8EPSS 0,21%Нет опубликованного исправления

    Input: exc3000 - properly stop timer on shutdown

    In the Linux kernel, the following vulnerability has been resolved: Input: exc3000 - properly stop timer on shutdown We need to stop the timer on driver unbind or probe failures, otherwise we get UAF/Oops.

    linux-kvmОперационные системы
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  4. CVE-2023-53650

    Средний · CVSS 5.5EPSS 0,21%Нет опубликованного исправления

    fbdev: omapfb: lcd_mipid: Fix an error handling path in mipid_spi_probe()

    In the Linux kernel, the following vulnerability has been resolved: fbdev: omapfb: lcd_mipid: Fix an error handling path in mipid_spi_probe() If 'mipid_detect()' fails, we must free 'md' to avoid a memory leak.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  5. CVE-2023-53648

    Средний · CVSS 5.5EPSS 0,21%Нет опубликованного исправления

    ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer

    In the Linux kernel, the following vulnerability has been resolved: ALSA: ac97: Fix possible NULL dereference in snd_ac97_mixer smatch error: sound/pci/ac97/ac97_codec.c:2354 snd_ac97_mixer() error: we previously assumed 'rac97' could be null (see line 2072) remove redundant assignment, return error if rac97 is NULL.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  6. CVE-2023-53647

    Средний · CVSS 5.5EPSS 0,21%Нет опубликованного исправления

    Drivers: hv: vmbus: Don't dereference ACPI root object handle

    In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Don't dereference ACPI root object handle Since the commit referenced in the Fixes: tag below the VMBus client driver is walking the ACPI namespace up from the VMBus ACPI device to the ACPI namespace root object trying to find Hyper-V MMIO ranges. However, if it is not able to find them it ends trying to walk resources of the ACPI namespace root object itself. This object has all-ones handle, which causes a NULL pointer dereference in the ACPI code (from dereferencing this pointer with an offset). This in turn causes an oops on boot with VMBus host imp

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  7. CVE-2023-53644

    Средний · CVSS 5.5EPSS 0,16%Нет опубликованного исправления

    media: radio-shark: Add endpoint checks

    In the Linux kernel, the following vulnerability has been resolved: media: radio-shark: Add endpoint checks The syzbot fuzzer was able to provoke a WARNING from the radio-shark2 driver: ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 1 != type 3 WARNING: CPU: 0 PID: 3271 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed2/0x1880 drivers/usb/core/urb.c:504 Modules linked in: CPU: 0 PID: 3271 Comm: kworker/0:3 Not tainted 6.1.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0xed2/0x1880 drivers/usb/core/urb.c

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  8. CVE-2023-53641

    Средний · CVSS 5.5EPSS 0,16%Нет опубликованного исправления

    wifi: ath9k: hif_usb: fix memory leak of remain_skbs

    In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hif_usb: fix memory leak of remain_skbs hif_dev->remain_skb is allocated and used exclusively in ath9k_hif_usb_rx_stream(). It is implied that an allocated remain_skb is processed and subsequently freed (in error paths) only during the next call of ath9k_hif_usb_rx_stream(). So, if the urbs are deallocated between those two calls due to the device deinitialization or suspend, it is possible that ath9k_hif_usb_rx_stream() is not called next time and the allocated remain_skb is leaked. Our local Syzkaller instance was able to trigger that. remain_skb makes sens

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  9. CVE-2023-53639

    Средний · CVSS 5.5EPSS 0,16%Нет опубликованного исправления

    wifi: ath6kl: reduce WARN to dev_dbg() in callback

    In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: reduce WARN to dev_dbg() in callback The warn is triggered on a known race condition, documented in the code above the test, that is correctly handled. Using WARN() hinders automated testing. Reducing severity.

    linux-kvmОперационные системы
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  10. CVE-2023-53635

    Высокий · CVSS 8.2EPSS 0,43%Нет опубликованного исправления

    netfilter: conntrack: fix wrong ct->timeout value

    In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: fix wrong ct->timeout value (struct nf_conn)->timeout is an interval before the conntrack confirmed. After confirmed, it becomes a timestamp. It is observed that timeout of an unconfirmed conntrack: - Set by calling ctnetlink_change_timeout(). As a result, `nfct_time_stamp` was wrongly added to `ct->timeout` twice. - Get by calling ctnetlink_dump_timeout(). As a result, `nfct_time_stamp` was wrongly subtracted. Call Trace: <TASK> dump_stack_lvl ctnetlink_dump_timeout __ctnetlink_glue_build ctnetlink_glue_build __nfqnl_enqueue_packet nf_qu

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  11. CVE-2023-53627

    Высокий · CVSS 7.8EPSS 0,22%Нет опубликованного исправления

    scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list

    In the Linux kernel, the following vulnerability has been resolved: scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list When freeing slots in function slot_complete_v3_hw(), it is possible that sas_dev.list is being traversed elsewhere, and it may trigger a NULL pointer exception, such as follows: ==>cq thread ==>scsi_eh_6 ==>scsi_error_handler() ==>sas_eh_handle_sas_errors() ==>sas_scsi_find_task() ==>lldd_abort_task() ==>slot_complete_v3_hw() ==>hisi_sas_abort_task() ==>hisi_sas_slot_task_free() ==>dereg_device_v3_

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  12. CVE-2023-53624

    Средний · CVSS 6.8EPSS 0,21%Нет опубликованного исправления

    net/sched: sch_fq: fix integer overflow of "credit"

    In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_fq: fix integer overflow of "credit" if sch_fq is configured with "initial quantum" having values greater than INT_MAX, the first assignment of "credit" does signed integer overflow to a very negative value. In this situation, the syzkaller script provided by Cristoph triggers the CPU soft-lockup warning even with few sockets. It's not an infinite loop, but "credit" wasn't probably meant to be minus 2Gb for each new flow. Capping "initial quantum" to INT_MAX proved to fix the issue. v2: validation of "initial quantum" is done in fq_policy, instead of open

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  13. CVE-2023-53623

    Средний · CVSS 4.7EPSS 0,14%Нет опубликованного исправления

    mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()

    In the Linux kernel, the following vulnerability has been resolved: mm/swap: fix swap_info_struct race between swapoff and get_swap_pages() The si->lock must be held when deleting the si from the available list. Otherwise, another thread can re-add the si to the available list, which can lead to memory corruption. The only place we have found where this happens is in the swapoff path. This case can be described as below: core 0 core 1 swapoff del_from_avail_list(si) waiting try lock si->lock acquire swap_avail_lock and re-add si into swap_a

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  14. CVE-2023-53622

    Высокий · CVSS 7EPSS 0,15%Нет опубликованного исправления

    gfs2: Fix possible data races in gfs2_show_options()

    In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix possible data races in gfs2_show_options() Some fields such as gt_logd_secs of the struct gfs2_tune are accessed without holding the lock gt_spin in gfs2_show_options(): val = sdp->sd_tune.gt_logd_secs; if (val != 30) seq_printf(s, ",commit=%d", val); And thus can cause data races when gfs2_show_options() and other functions such as gfs2_reconfigure() are concurrently executed: spin_lock(&gt->gt_spin); gt->gt_logd_secs = newargs->ar_commit; To fix these possible data races, the lock sdp->sd_tune.gt_spin is acquired before accessing the fields of gf

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  15. CVE-2023-53620

    Средний · CVSS 5.7EPSS 0,16%Нет опубликованного исправления

    md: fix soft lockup in status_resync

    In the Linux kernel, the following vulnerability has been resolved: md: fix soft lockup in status_resync status_resync() will calculate 'curr_resync - recovery_active' to show user a progress bar like following: [============>........] resync = 61.4% 'curr_resync' and 'recovery_active' is updated in md_do_sync(), and status_resync() can read them concurrently, hence it's possible that 'curr_resync - recovery_active' can overflow to a huge number. In this case status_resync() will be stuck in the loop to print a large amount of '=', which will end up soft lockup. Fix the problem by setting 'resync' to MD_RESYNC_ACTIVE in this case, this

    linux-kvmОперационные системы
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  16. CVE-2023-53619

    Высокий · CVSS 7.8EPSS 0,22%Нет опубликованного исправления

    netfilter: conntrack: Avoid nf_ct_helper_hash uses after free

    In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free If nf_conntrack_init_start() fails (for example due to a register_nf_conntrack_bpf() failure), the nf_conntrack_helper_fini() clean-up path frees the nf_ct_helper_hash map. When built with NF_CONNTRACK=y, further netfilter modules (e.g: netfilter_conntrack_ftp) can still be loaded and call nf_conntrack_helpers_register(), independently of whether nf_conntrack initialized correctly. This accesses the nf_ct_helper_hash dangling pointer and causes a uaf, possibly leading to random memory corruption. This patch gua

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  17. CVE-2023-53618

    Высокий · CVSS 7.1EPSS 0,2%Нет опубликованного исправления

    btrfs: reject invalid reloc tree root keys with stack dump

    In the Linux kernel, the following vulnerability has been resolved: btrfs: reject invalid reloc tree root keys with stack dump [BUG] Syzbot reported a crash that an ASSERT() got triggered inside prepare_to_merge(). That ASSERT() makes sure the reloc tree is properly pointed back by its subvolume tree. [CAUSE] After more debugging output, it turns out we had an invalid reloc tree: BTRFS error (device loop1): reloc tree mismatch, root 8 has no reloc root, expect reloc root key (-8, 132, 8) gen 17 Note the above root key is (TREE_RELOC_OBJECTID, ROOT_ITEM, QUOTA_TREE_OBJECTID), meaning it's a reloc tree for quota tree. But reloc trees c

    linux-kvmОперационные системы
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  18. CVE-2022-50532

    Средний · CVSS 5.5EPSS 0,16%Нет опубликованного исправления

    scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add()

    In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add() In mpt3sas_transport_port_add(), if sas_rphy_add() returns error, sas_rphy_free() needs be called to free the resource allocated in sas_end_device_alloc(). Otherwise a kernel crash will happen: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 45 PID: 37020 Comm: bash Kdump: loaded Tainted: G W 6.1.0-rc1+ #189 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x54/0x3d0 lr : device_del+0x37c/0x3d0 Call trace: devi

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  19. CVE-2022-50518

    Высокий · CVSS 7.8EPSS 0,14%Нет опубликованного исправления

    parisc: Fix locking in pdc_iodc_print() firmware call

    In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings.

    linux-kvmОперационные системы
    Опубликовано Обновлено
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  20. CVE-2022-50516

    Средний · CVSS 5.5EPSS 0,17%Нет опубликованного исправления

    fs: dlm: fix invalid derefence of sb_lvbptr

    In the Linux kernel, the following vulnerability has been resolved: fs: dlm: fix invalid derefence of sb_lvbptr I experience issues when putting a lkbsb on the stack and have sb_lvbptr field to a dangled pointer while not using DLM_LKF_VALBLK. It will crash with the following kernel message, the dangled pointer is here 0xdeadbeef as example: [ 102.749317] BUG: unable to handle page fault for address: 00000000deadbeef [ 102.749320] #PF: supervisor read access in kernel mode [ 102.749323] #PF: error_code(0x0000) - not-present page [ 102.749325] PGD 0 P4D 0 [ 102.749332] Oops: 0000 [#1] PREEMPT SMP PTI [ 102.749336] CPU: 0 PID: 1567 Com

    linux-kvmОперационные системы
    Опубликовано Обновлено
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