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Sicherheitslücken in linux-azure-5.4 · Seite 51

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

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  1. CVE-2021-47435

    Mittel · CVSS 4.7EPSS 0,24%Korrektur verfügbar

    dm: fix mempool NULL pointer race when completing IO

    In the Linux kernel, the following vulnerability has been resolved: dm: fix mempool NULL pointer race when completing IO dm_io_dec_pending() calls end_io_acct() first and will then dec md in-flight pending count. But if a task is swapping DM table at same time this can result in a crash due to mempool->elements being NULL: task1 task2 do_resume ->do_suspend ->dm_wait_for_completion bio_endio ->clone_endio ->dm_io_dec_pending ->end_io_acct ->wakeup task1 ->dm_swap_table ->__bind ->__bind_mempools ->bioset_exit ->mempool_exit

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  2. CVE-2021-47434

    Mittel · CVSS 5.5EPSS 0,24%Korrektur verfügbar

    xhci: Fix command ring pointer corruption while aborting a command

    In the Linux kernel, the following vulnerability has been resolved: xhci: Fix command ring pointer corruption while aborting a command The command ring pointer is located at [6:63] bits of the command ring control register (CRCR). All the control bits like command stop, abort are located at [0:3] bits. While aborting a command, we read the CRCR and set the abort bit and write to the CRCR. The read will always give command ring pointer as all zeros. So we essentially write only the control bits. Since we split the 64 bit write into two 32 bit writes, there is a possibility of xHC command ring stopped before the upper dword (all zeros) is wri

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  4. CVE-2022-48710

    Mittel · CVSS 5.7EPSS 0,26%Korrektur verfügbar

    drm/radeon: fix a possible null pointer dereference

    In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix a possible null pointer dereference In radeon_fp_native_mode(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. The failure status of drm_cvt_mode() on the other path is checked too.

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  6. CVE-2023-52745

    Hoch · CVSS 7.8EPSS 0,26%Korrektur verfügbar

    IB/IPoIB: Fix legacy IPoIB due to wrong number of queues

    In the Linux kernel, the following vulnerability has been resolved: IB/IPoIB: Fix legacy IPoIB due to wrong number of queues The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a crash when traffic is sent over the PKEY interface due to the parent having a single queue but the child having multiple queues. This patch fixes the number of queues to 1 for legacy IPoIB at the earliest possible point in time. BUG: kernel NULL pointer dereference, address: 000000000000036b PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 4 PID: 209665 Com

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  7. CVE-2023-52743

    Mittel · CVSS 5.5EPSS 0,24%Korrektur verfügbar

    ice: Do not use WQ_MEM_RECLAIM flag for workqueue

    In the Linux kernel, the following vulnerability has been resolved: ice: Do not use WQ_MEM_RECLAIM flag for workqueue When both ice and the irdma driver are loaded, a warning in check_flush_dependency is being triggered. This is due to ice driver workqueue being allocated with the WQ_MEM_RECLAIM flag and the irdma one is not. According to kernel documentation, this flag should be set if the workqueue will be involved in the kernel's memory reclamation flow. Since it is not, there is no need for the ice driver's WQ to have this flag set so remove it. Example trace: [ +0.000004] workqueue: WQ_MEM_RECLAIM ice:ice_service_task [ice] is flus

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  8. CVE-2023-52742

    Mittel · CVSS 5.5EPSS 0,25%Korrektur verfügbar

    net: USB: Fix wrong-direction WARNING in plusb.c

    In the Linux kernel, the following vulnerability has been resolved: net: USB: Fix wrong-direction WARNING in plusb.c The syzbot fuzzer detected a bug in the plusb network driver: A zero-length control-OUT transfer was treated as a read instead of a write. In modern kernels this error provokes a WARNING: usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0 WARNING: CPU: 0 PID: 4645 at drivers/usb/core/urb.c:411 usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 Modules linked in: CPU: 1 PID: 4645 Comm: dhcpcd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0 Hardware name: Google Google Compute Engine/Google Co

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  9. CVE-2023-52730

    Mittel · CVSS 5.5EPSS 0,25%Korrektur verfügbar

    mmc: sdio: fix possible resource leaks in some error paths

    In the Linux kernel, the following vulnerability has been resolved: mmc: sdio: fix possible resource leaks in some error paths If sdio_add_func() or sdio_init_func() fails, sdio_remove_func() can not release the resources, because the sdio function is not presented in these two cases, it won't call of_node_put() or put_device(). To fix these leaks, make sdio_func_present() only control whether device_del() needs to be called or not, then always call of_node_put() and put_device(). In error case in sdio_init_func(), the reference of 'card->dev' is not get, to avoid redundant put in sdio_free_func_cis(), move the get_device() to sdio_alloc_

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  10. CVE-2023-52708

    Mittel · CVSS 5.5EPSS 0,25%Korrektur verfügbar

    mmc: mmc_spi: fix error handling in mmc_spi_probe()

    In the Linux kernel, the following vulnerability has been resolved: mmc: mmc_spi: fix error handling in mmc_spi_probe() If mmc_add_host() fails, it doesn't need to call mmc_remove_host(), or it will cause null-ptr-deref, because of deleting a not added device in mmc_remove_host(). To fix this, goto label 'fail_glue_init', if mmc_add_host() fails, and change the label 'fail_add_host' to 'fail_gpiod_request'.

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  11. CVE-2023-52707

    Hoch · CVSS 7.8EPSS 0,26%Korrektur verfügbar

    sched/psi: Fix use-after-free in ep_remove_wait_queue()

    In the Linux kernel, the following vulnerability has been resolved: sched/psi: Fix use-after-free in ep_remove_wait_queue() If a non-root cgroup gets removed when there is a thread that registered trigger and is polling on a pressure file within the cgroup, the polling waitqueue gets freed in the following path: do_rmdir cgroup_rmdir kernfs_drain_open_files cgroup_file_release cgroup_pressure_release psi_trigger_destroy However, the polling thread still has a reference to the pressure file and will access the freed waitqueue when the file is closed or upon exit: fput ep_eventpoll_release ep_fr

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  12. CVE-2023-52705

    Mittel · CVSS 5.5EPSS 0,25%Korrektur verfügbar

    nilfs2: fix underflow in second superblock position calculations

    In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix underflow in second superblock position calculations Macro NILFS_SB2_OFFSET_BYTES, which computes the position of the second superblock, underflows when the argument device size is less than 4096 bytes. Therefore, when using this macro, it is necessary to check in advance that the device size is not less than a lower limit, or at least that underflow does not occur. The current nilfs2 implementation lacks this check, causing out-of-bound block access when mounting devices smaller than 4096 bytes: I/O error, dev loop0, sector 36028797018963960 op 0x0:(READ) f

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  13. CVE-2023-52703

    Niedrig · CVSS 3.3EPSS 0,25%Korrektur verfügbar

    net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path

    In the Linux kernel, the following vulnerability has been resolved: net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path syzbot reported that act_len in kalmia_send_init_packet() is uninitialized when passing it to the first usb_bulk_msg error path. Jiri Pirko noted that it's pointless to pass it in the error path, and that the value that would be printed in the second error path would be the value of act_len from the first call to usb_bulk_msg.[1] With this in mind, let's just not pass act_len to the usb_bulk_msg error paths. 1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/

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  14. CVE-2022-48708

    Mittel · CVSS 5.5EPSS 0,24%Korrektur verfügbar

    pinctrl: single: fix potential NULL dereference

    In the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix potential NULL dereference Added checking of pointer "function" in pcs_set_mux(). pinmux_generic_get_function() can return NULL and the pointer "function" was dereferenced without checking against NULL. Found by Linux Verification Center (linuxtesting.org) with SVACE.

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  15. CVE-2021-47431

    Mittel · CVSS 5.5EPSS 0,22%Korrektur verfügbar

    drm/amdgpu: fix gart.bo pin_count leak

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix gart.bo pin_count leak gmc_v{9,10}_0_gart_disable() isn't called matched with correspoding gart_enbale function in SRIOV case. This will lead to gart.bo pin_count leak on driver unload.

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  17. CVE-2021-47425

    Mittel · CVSS 5.5EPSS 0,23%Korrektur verfügbar

    i2c: acpi: fix resource leak in reconfiguration device addition

    In the Linux kernel, the following vulnerability has been resolved: i2c: acpi: fix resource leak in reconfiguration device addition acpi_i2c_find_adapter_by_handle() calls bus_find_device() which takes a reference on the adapter which is never released which will result in a reference count leak and render the adapter unremovable. Make sure to put the adapter after creating the client in the same manner that we do for OF. [wsa: fixed title]

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  18. CVE-2021-47424

    Mittel · CVSS 5.5EPSS 0,22%Korrektur verfügbar

    i40e: Fix freeing of uninitialized misc IRQ vector

    In the Linux kernel, the following vulnerability has been resolved: i40e: Fix freeing of uninitialized misc IRQ vector When VSI set up failed in i40e_probe() as part of PF switch set up driver was trying to free misc IRQ vectors in i40e_clear_interrupt_scheme and produced a kernel Oops: Trying to free already-free IRQ 266 WARNING: CPU: 0 PID: 5 at kernel/irq/manage.c:1731 __free_irq+0x9a/0x300 Workqueue: events work_for_cpu_fn RIP: 0010:__free_irq+0x9a/0x300 Call Trace: ? synchronize_irq+0x3a/0xa0 free_irq+0x2e/0x60 i40e_clear_interrupt_scheme+0x53/0x190 [i40e] i40e_probe.part.108+0x134b/0x1a40 [i40e] ? kmem_c

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  19. CVE-2021-47423

    Mittel · CVSS 5.5EPSS 0,22%Korrektur verfügbar

    drm/nouveau/debugfs: fix file release memory leak

    In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/debugfs: fix file release memory leak When using single_open() for opening, single_release() should be called, otherwise the 'op' allocated in single_open() will be leaked.

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  20. CVE-2021-47419

    Hoch · CVSS 7.8EPSS 0,23%Korrektur verfügbar

    net/sched: sch_taprio: properly cancel timer from taprio_destroy()

    In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_taprio: properly cancel timer from taprio_destroy() There is a comment in qdisc_create() about us not calling ops->reset() in some cases. err_out4: /* * Any broken qdiscs that would require a ops->reset() here? * The qdisc was never in action so it shouldn't be necessary. */ As taprio sets a timer before actually receiving a packet, we need to cancel it from ops->destroy, just in case ops->reset has not been called. syzbot reported: ODEBUG: free active (active state 0) object type: hrtimer hint: advance_sched+0x0/0x9a0 arch/x86/include/asm/atomic64

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