{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43477 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-43477 is a medium-severity denial of service vulnerability in Linux kernel, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-43477 and fix it if it is affected.\n\nWhat it is: CVE-2026-43477 is a medium-severity denial of service vulnerability in Linux kernel, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-43477 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-43477/ (Markdown: https://insights.sbomify.com/CVE-2026-43477/index.md)","id":"CVE-2026-43477","markdown":"https://insights.sbomify.com/CVE-2026-43477/index.md","name":"CVE-2026-43477","record":{"aliases":["BELL-CVE-2026-43477","DEBIAN-CVE-2026-43477","GHSA-f8p8-wjf5-jrx9","UBUNTU-CVE-2026-43477"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel graphics driver","requires_auth":"low_privilege","summary":"A race condition in the Intel i915 graphics driver can cause a system hang or machine check exception when configuring VRR timings, leading to denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/vrr: Configure VRR timings after enabling TRANS_DDI_FUNC_CTL\n\nApparently ICL may hang with an MCE if we write TRANS_VRR_VMAX/FLIPLINE\nbefore enabling TRANS_DDI_FUNC_CTL.\n\nPersonally I was only able to reproduce a hang (on an Dell XPS 7390\n2-in-1) with an external display connected via a dock using a dodgy\ntype-C cable that made the link training fail. After the failed\nlink training the machine would hang. TGL seemed immune to the\nproblem for whatever reason.\n\nBSpec does tell us to configure VRR after enabling TRANS_DDI_FUNC_CTL\nas well. The DMC firmware also does the VRR restore in two stages:\n- first stage seems to be unconditional and includes TRANS_VRR_CTL\n  and a few other VRR registers, among other things\n- second stage is conditional on the DDI being enabled,\n  and includes TRANS_DDI_FUNC_CTL and TRANS_VRR_VMAX/VMIN/FLIPLINE,\n  among other things\n\nSo let's reorder the steps to match to avoid the hang, and\ntoss in an extra WARN to make sure we don't screw this up later.\n\nBSpec: 22243\n(cherry picked from commit 93f3a267c3dd4d811b224bb9e179a10d81456a74)","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"drm/i915/vrr: Configure VRR timings after enabling TRANS_DDI_FUNC_CTL","id":"CVE-2026-43477","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"ASoC: codecs: rt1011: Use component to get the dapm context in spk_mode_put","id":"CVE-2026-43478"},"packages":[],"prev":{"headline":"iio: chemical: sps30_i2c: fix buffer size in sps30_i2c_read_meas()","id":"CVE-2026-43476"},"products":["Linux"],"published":"2026-05-13","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-13","vendors":["Linux"]},"summary":"A race condition in the Intel i915 graphics driver can cause a system hang or machine check exception when configuring VRR timings, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-43477/"}