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In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-lts-xenial: 377. Davon im KEV-Katalog: 0.

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  1. CVE-2022-50489

    Mittel · CVSS 5.5EPSS 0,16%Keine Korrektur veröffentlicht

    drm/mipi-dsi: Detach devices when removing the host

    In the Linux kernel, the following vulnerability has been resolved: drm/mipi-dsi: Detach devices when removing the host Whenever the MIPI-DSI host is unregistered, the code of mipi_dsi_host_unregister() loops over every device currently found on that bus and will unregister it. However, it doesn't detach it from the bus first, which leads to all kind of resource leaks if the host wants to perform some clean up whenever a device is detached.

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  2. CVE-2023-53569

    Hoch · CVSS 7.8EPSS 0,16%Keine Korrektur veröffentlicht

    ext2: Check block size validity during mount

    In the Linux kernel, the following vulnerability has been resolved: ext2: Check block size validity during mount Check that log of block size stored in the superblock has sensible value. Otherwise the shift computing the block size can overflow leading to undefined behavior.

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  3. CVE-2023-53567

    Mittel · CVSS 5.5EPSS 0,15%Keine Korrektur veröffentlicht

    spi: qup: Don't skip cleanup in remove's error path

    In the Linux kernel, the following vulnerability has been resolved: spi: qup: Don't skip cleanup in remove's error path Returning early in a platform driver's remove callback is wrong. In this case the dma resources are not released in the error path. this is never retried later and so this is a permanent leak. To fix this, only skip hardware disabling if waking the device fails.

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  4. CVE-2023-53564

    Mittel · CVSS 5.7EPSS 0,15%Keine Korrektur veröffentlicht

    ocfs2: fix defrag path triggering jbd2 ASSERT

    In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix defrag path triggering jbd2 ASSERT code path: ocfs2_ioctl_move_extents ocfs2_move_extents ocfs2_defrag_extent __ocfs2_move_extent + ocfs2_journal_access_di + ocfs2_split_extent //sub-paths call jbd2_journal_restart + ocfs2_journal_dirty //crash by jbs2 ASSERT crash stacks: PID: 11297 TASK: ffff974a676dcd00 CPU: 67 COMMAND: "defragfs.ocfs2" #0 [ffffb25d8dad3900] machine_kexec at ffffffff8386fe01 #1 [ffffb25d8dad3958] __crash_kexec at ffffffff8395959d #2 [ffffb25d8dad3a20] crash_kexec at ffffffff8395a45d #3 [ffffb25d8dad3a38] oops_end a

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  5. CVE-2023-53559

    Hoch · CVSS 7.8EPSS 0,15%Keine Korrektur veröffentlicht

    ip_vti: fix potential slab-use-after-free in decode_session6

    In the Linux kernel, the following vulnerability has been resolved: ip_vti: fix potential slab-use-after-free in decode_session6 When ip_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ip_vti device sends IPv6 packets. As commit f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.") showed, xfrm_decode_session was originally intended only for the receive path. IP6CB(skb)->nhoff is not set during transmission. Therefore, set the cb field in the skb to 0 before sending packets.

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  6. CVE-2023-53556

    Hoch · CVSS 7.8EPSS 0,15%Keine Korrektur veröffentlicht

    iavf: Fix use-after-free in free_netdev

    In the Linux kernel, the following vulnerability has been resolved: iavf: Fix use-after-free in free_netdev We do netif_napi_add() for all allocated q_vectors[], but potentially do netif_napi_del() for part of them, then kfree q_vectors and leave invalid pointers at dev->napi_list. Reproducer: [root@host ~]# cat repro.sh #!/bin/bash pf_dbsf="0000:41:00.0" vf0_dbsf="0000:41:02.0" g_pids=() function do_set_numvf() { echo 2 >/sys/bus/pci/devices/${pf_dbsf}/sriov_numvfs sleep $((RANDOM%3+1)) echo 0 >/sys/bus/pci/devices/${pf_dbsf}/sriov_numvfs sleep $((RANDOM%3+1)) } function do_set_channel() {

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  7. CVE-2023-53548

    Mittel · CVSS 5.5EPSS 0,16%Keine Korrektur veröffentlicht

    net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb

    In the Linux kernel, the following vulnerability has been resolved: net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb The syzbot fuzzer identified a problem in the usbnet driver: usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 754 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 Modules linked in: CPU: 0 PID: 754 Comm: kworker/0:2 Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: mld mld_ifc_work RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 Code: 7c 24 18

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  8. CVE-2023-53545

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

    drm/amdgpu: unmap and remove csa_va properly

    In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: unmap and remove csa_va properly Root PD BO should be reserved before unmap and remove a bo_va from VM otherwise lockdep will complain. v2: check fpriv->csa_va is not NULL instead of amdgpu_mcbp (christian) [14616.936827] WARNING: CPU: 6 PID: 1711 at drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1762 amdgpu_vm_bo_del+0x399/0x3f0 [amdgpu] [14616.937096] Call Trace: [14616.937097] <TASK> [14616.937102] amdgpu_driver_postclose_kms+0x249/0x2f0 [amdgpu] [14616.937187] drm_file_free+0x1d6/0x300 [drm] [14616.937207] drm_close_helper.isra.0+0x62/0x70 [drm] [14616.937220]

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  9. CVE-2023-53544

    Hoch · CVSS 7.8EPSS 0,16%Keine Korrektur veröffentlicht

    cpufreq: davinci: Fix clk use after free

    In the Linux kernel, the following vulnerability has been resolved: cpufreq: davinci: Fix clk use after free The remove function first frees the clks and only then calls cpufreq_unregister_driver(). If one of the cpufreq callbacks is called just before cpufreq_unregister_driver() is run, the freed clks might be used.

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  10. CVE-2023-53542

    Mittel · CVSS 5.5EPSS 0,16%Keine Korrektur veröffentlicht

    ARM: dts: exynos: Use Exynos5420 compatible for the MIPI video phy

    In the Linux kernel, the following vulnerability has been resolved: ARM: dts: exynos: Use Exynos5420 compatible for the MIPI video phy For some reason, the driver adding support for Exynos5420 MIPI phy back in 2016 wasn't used on Exynos5420, which caused a kernel panic. Add the proper compatible for it.

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  11. CVE-2023-53541

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

    mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write

    In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write When the oob buffer length is not in multiple of words, the oob write function does out-of-bounds read on the oob source buffer at the last iteration. Fix that by always checking length limit on the oob buffer read and fill with 0xff when reaching the end of the buffer to the oob registers.

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  12. CVE-2023-53540

    Hoch · CVSS 7.1EPSS 0,2%Keine Korrektur veröffentlicht

    wifi: cfg80211: reject auth/assoc to AP with our address

    In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: reject auth/assoc to AP with our address If the AP uses our own address as its MLD address or BSSID, then clearly something's wrong. Reject such connections so we don't try and fail later.

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  13. CVE-2023-53538

    Mittel · CVSS 5.7EPSS 0,16%Keine Korrektur veröffentlicht

    btrfs: insert tree mod log move in push_node_left

    In the Linux kernel, the following vulnerability has been resolved: btrfs: insert tree mod log move in push_node_left There is a fairly unlikely race condition in tree mod log rewind that can result in a kernel panic which has the following trace: [530.569] BTRFS critical (device sda3): unable to find logical 0 length 4096 [530.585] BTRFS critical (device sda3): unable to find logical 0 length 4096 [530.602] BUG: kernel NULL pointer dereference, address: 0000000000000002 [530.618] #PF: supervisor read access in kernel mode [530.629] #PF: error_code(0x0000) - not-present page [530.641] PGD 0 P4D 0 [530.647] Oops: 0000 [#1] SMP

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  14. CVE-2023-53535

    Hoch · CVSS 7.1EPSS 0,24%Keine Korrektur veröffentlicht

    net: bcmgenet: Add a check for oversized packets

    In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: Add a check for oversized packets Occasionnaly we may get oversized packets from the hardware which exceed the nomimal 2KiB buffer size we allocate SKBs with. Add an early check which drops the packet to avoid invoking skb_over_panic() and move on to processing the next packet.

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  15. CVE-2022-50486

    Mittel · CVSS 5.7EPSS 0,17%Keine Korrektur veröffentlicht

    net: ethernet: ti: Fix return type of netcp_ndo_start_xmit()

    In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: Fix return type of netcp_ndo_start_xmit() With clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG), indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid to help mitigate ROP attacks. If they are not identical, there is a failure at run time, which manifests as either a kernel panic or thread getting killed. A proposed warning in clang aims to catch these at compile time, which reveals: drivers/net/ethernet/ti/netcp_core.c:1944:21: error: incompatible function pointer types

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  16. CVE-2022-50485

    Hoch · CVSS 7.1EPSS 0,17%Keine Korrektur veröffentlicht

    ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode

    In the Linux kernel, the following vulnerability has been resolved: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)

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  17. CVE-2022-50484

    Mittel · CVSS 5.5EPSS 0,16%Keine Korrektur veröffentlicht

    ALSA: usb-audio: Fix potential memory leaks

    In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks When the driver hits -ENOMEM at allocating a URB or a buffer, it aborts and goes to the error path that releases the all previously allocated resources. However, when -ENOMEM hits at the middle of the sync EP URB allocation loop, the partially allocated URBs might be left without released, because ep->nurbs is still zero at that point. Fix it by setting ep->nurbs at first, so that the error handler loops over the full URB list.

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  18. CVE-2022-50482

    Mittel · CVSS 5.5EPSS 0,16%Keine Korrektur veröffentlicht

    iommu/vt-d: Clean up si_domain in the init_dmars() error path

    In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clean up si_domain in the init_dmars() error path A splat from kmem_cache_destroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in init_dmars(), because the iommu_domain cache still had objects. While the mempool code is now gone, there still is a leak of the si_domain memory if init_dmars() fails. So clean up si_domain in the init_dmars() error path.

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  19. CVE-2022-50481

    Mittel · CVSS 5.5EPSS 0,16%Keine Korrektur veröffentlicht

    cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()

    In the Linux kernel, the following vulnerability has been resolved: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() If device_register() fails in cxl_register_afu|adapter(), the device is not added, device_unregister() can not be called in the error path, otherwise it will cause a null-ptr-deref because of removing not added device. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So split device_unregister() into device_del() and put_device(), then goes to put dev when register fails.

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  20. CVE-2022-50478

    Hoch · CVSS 7.1EPSS 0,17%Keine Korrektur veröffentlicht

    nilfs2: fix shift-out-of-bounds/overflow in nilfs_sb2_bad_offset()

    In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix shift-out-of-bounds/overflow in nilfs_sb2_bad_offset() Patch series "nilfs2: fix UBSAN shift-out-of-bounds warnings on mount time". The first patch fixes a bug reported by syzbot, and the second one fixes the remaining bug of the same kind. Although they are triggered by the same super block data anomaly, I divided it into the above two because the details of the issues and how to fix it are different. Both are required to eliminate the shift-out-of-bounds issues at mount time. This patch (of 2): If the block size exponent information written in an on-disk

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