{ "document": { "aggregate_severity": { "text": "Medium" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/debian10els/vex/2026/cve-2026-46312-els_os-debian10els.json" } ], "tracking": { "current_release_date": "2026-08-25T12:53:17Z", "generator": { "date": "2026-08-25T12:53:17Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2026-46312-ELS_OS-DEBIAN10ELS", "initial_release_date": "2026-06-08T17:16:00Z", "revision_history": [ { "date": "2026-06-08T17:16:00Z", "number": "1", "summary": "Initial version" }, { "date": "2026-08-25T12:53:17Z", "number": "2", "summary": "Official Publication" } ], "status": "final", "version": "2" }, "title": "Security update on 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"linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10", "product_id": "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64" }, "product_reference": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-46312", "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: videobuf2: Set vma_flags in vb2_dma_sg_mmap\n\nvb2_dma_contig sets VMA flags VM_DONTEXPAND and VM_DONTDUMP and I do not\nsee a reason why vb2_dma_sg should behave differently. This avoids\nhitting `WARN_ON(!(vma->vm_flags & VM_DONTEXPAND));` in\ndrm_gem_mmap_obj() during mmap() of an imported dma-buf from the out of\ntree Apple ISP camera capture driver which uses vb2_dma_sg_memops.\n\ngst-launch-1.0 v4l2src ! gtk4paintablesink\n\n[ 38.201528] ------------[ cut here ]------------\n[ 38.202135] WARNING: CPU: 7 PID: 2362 at drivers/gpu/drm/drm_gem.c:1144 drm_gem_mmap_obj+0x1f8/0x210\n[ 38.203278] Modules linked in: rfcomm snd_seq_dummy snd_hrtimer\nsnd_seq snd_seq_device uinput nf_conntrack_netbios_ns\nnf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib\nnft_reject_inet nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat\nnf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables qrtr bnep\nnls_ascii i2c_dev loop fuse dm_multipath nfnetlink brcmfmac_wcc\nhid_magicmouse hci_bcm4377 brcmfmac brcmutil bluetooth ecdh_generic\ncfg80211 ecc btrfs xor xor_neon rfkill hid_apple raid6_pq joydev\naop_als apple_nvmem_spmi industrialio snd_soc_aop apple_z2\nsnd_soc_cs42l84 tps6598x snd_soc_tas2764 macsmc_reboot spi_nor\nmacsmc_hwmon rtc_macsmc gpio_macsmc macsmc_power regmap_spmi\nmacsmc_input dockchannel_hid panel_summit appledrm nvme_apple dwc3\nsnd_soc_macaudio drm_client_lib nvme_core phy_apple_atc hwmon\napple_sart apple_dockchannel macsmc apple_rtkit_helper\nspmi_apple_controller aop apple_wdt mfd_core nvmem_apple_efuses\npinctrl_apple_gpio apple_isp apple_dcp videobuf2_dma_sg mux_core\nspi_apple\n[ 38.203300] videobuf2_memops i2c_pasemi_platform snd_soc_apple_mca videobuf2_v4l2 videodev clk_apple_nco videobuf2_common snd_pcm_dmaengine adpdrm asahi apple_admac adpdrm_mipi drm_dma_helper pwm_apple i2c_pasemi_core drm_display_helper mc cec apple_dart ofpart apple_soc_cpufreq leds_pwm phram\n[ 38.217677] CPU: 7 UID: 1000 PID: 2362 Comm: gst-launch-1.0 Tainted: G W 6.17.6+ #asahi-dev PREEMPT(full)\n[ 38.219040] Tainted: [W]=WARN\n[ 38.219398] Hardware name: Apple MacBook Pro (13-inch, M2, 2022) (DT)\n[ 38.220213] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[ 38.221088] pc : drm_gem_mmap_obj+0x1f8/0x210\n[ 38.221643] lr : drm_gem_mmap_obj+0x78/0x210\n[ 38.222178] sp : ffffc0008dc678e0\n[ 38.222579] x29: ffffc0008dc678e0 x28: 0000000000042a97 x27: ffff8000b701b480\n[ 38.223465] x26: 00000000000000fb x25: ffffc0008dc67d20 x24: ffffc0008dc67968\n[ 38.224402] x23: ffff8000e3ca5600 x22: ffff8000265b7800 x21: ffff80003000c0c0\n[ 38.225279] x20: 0000000000000000 x19: ffff8000b68c5200 x18: ffffc0008dc67968\n[ 38.226151] x17: 0000000000000000 x16: 0000000000000000 x15: ffffc000810a30a8\n[ 38.227042] x14: 00007fff637effff x13: 00005555de91ffff x12: 00007fff63293fff\n[ 38.227942] x11: 0000000000000000 x10: ffff8000184ecf08 x9 : ffffc0007a1900c8\n[ 38.228824] x8 : ffffc0008dc67968 x7 : 0000000000000012 x6 : ffffc0015cf1c000\n[ 38.229703] x5 : ffffc0008dc676a0 x4 : ffffc00081a27dc0 x3 : 0000000000000038\n[ 38.230607] x2 : 0000000000000003 x1 : 0000000000000003 x0 : 00000000100000fb\n[ 38.231488] Call trace:\n[ 38.231806] drm_gem_mmap_obj+0x1f8/0x210 (P)\n[ 38.232342] drm_gem_mmap+0x140/0x260\n[ 38.232813] __mmap_region+0x488/0x9a0\n[ 38.233277] mmap_region+0xd0/0x148\n[ 38.233703] do_mmap+0x350/0x5c0\n[ 38.234148] vm_mmap_pgoff+0x14c/0x200\n[ 38.234612] ksys_mmap_pgoff+0x150/0x208\n[ 38.235107] __arm64_sys_mmap+0x34/0x50\n[ 38.235611] invoke_syscall+0x50/0x120\n[ 38.236075] el0_svc_common.constprop.0+0x48/0xf0\n[ 38.236680] do_el0_svc+0x24/0x38\n[ 38.237113] el0_svc+0x38/0x168\n[ 38.237507] el0t_64_sync_handler+0xa0/0xe8\n[ 38.238034] el0t_64_sync+0x198/0x1a0\n[ 38.238491] ---[ end trace 0000000000000000 ]---\n\nThere were discussions in [1] at the end of 2023 that mmap() on imported\n---truncated---", "title": "Vulnerability description" }, { "category": "other", "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.", "title": "Statement" } ], "product_status": { "known_not_affected": [ "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-46312" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/1a1360264f699521e001e7739009ee3ee3c6a4f5", "url": "https://git.kernel.org/stable/c/1a1360264f699521e001e7739009ee3ee3c6a4f5" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/21fade52ab9fb13368a5709e60b0d9909197aeae", "url": "https://git.kernel.org/stable/c/21fade52ab9fb13368a5709e60b0d9909197aeae" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/7254b31a13aaa0c2c0f9ffbc335b718656117ff4", "url": "https://git.kernel.org/stable/c/7254b31a13aaa0c2c0f9ffbc335b718656117ff4" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/b4cf91658a636618f1437beec971dec25dec28eb", "url": "https://git.kernel.org/stable/c/b4cf91658a636618f1437beec971dec25dec28eb" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/feb17524aa4ec337749344be0db52b88663e25ab", "url": "https://git.kernel.org/stable/c/feb17524aa4ec337749344be0db52b88663e25ab" } ], "release_date": "2026-06-08T17:16:00Z", "threats": [ { "category": "impact", "details": "Moderate" }, { "category": "impact", "date": "2026-08-22T07:58:03.648815Z", "details": "The debian10els kernel is not affected by CVE-2026-46312: the vulnerable code was never introduced into this branch.", "product_ids": [ "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64", "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all", "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all" ] } ] } ] }