{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80999 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80999 is a denial of service vulnerability in Linux, published on 11 Sep 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-2026-80999 and fix it if it is affected.\n\nWhat it is: CVE-2026-80999 is a denial of service vulnerability in Linux, published on 11 Sep 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-2026-80999 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-80999/ (Markdown: https://insights.sbomify.com/CVE-2026-80999/index.md)","id":"CVE-2026-80999","markdown":"https://insights.sbomify.com/CVE-2026-80999/index.md","name":"CVE-2026-80999","record":{"aliases":["AZL-100343","BELL-CVE-2026-80999","DEBIAN-CVE-2026-80999","GHSA-5x4g-x6mc-9fxq","UBUNTU-CVE-2026-80999"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A kernel warning occurs when a Realtek DSA switch reset GPIO is controlled by a sleeping I2C expander, potentially causing instability or denial of service during device probing.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: realtek: use gpiod_set_value_cansleep for reset GPIO\n\nrtl83xx_reset_assert() and rtl83xx_reset_deassert() are only called from\nthe probe path, which may sleep and is not timing-critical.  When the\nreset GPIO is provided by a sleeping controller such as an I2C I/O\nexpander, gpiod_set_value() warns:\n\n  WARNING: drivers/gpio/gpiolib.c:4030 at gpiod_set_value+0x44/0x80, CPU#1: kworker/u16:4/61\n  Hardware name: B\u0026O MAP CA33 Rev f (UNKNOWN) (DT)\n  Workqueue: events_unbound deferred_probe_work_func\n  pc : gpiod_set_value+0x44/0x80\n  lr : rtl83xx_probe+0x1d8/0x3a0\n  Call trace:\n   gpiod_set_value+0x44/0x80 (P)\n   rtl83xx_probe+0x1d8/0x3a0\n   realtek_mdio_probe+0x24/0xa0\n   mdio_probe+0x38/0x78\n   really_probe+0xc4/0x3e0\n   __driver_probe_device+0x15c/0x1b8\n   driver_probe_device+0xb4/0x120\n   __device_attach_driver+0xb8/0x1a0\n   bus_for_each_drv+0x88/0xf0\n   __device_attach+0xa0/0x1d8\n   device_initial_probe+0x54/0x68\n   bus_probe_device+0x38/0xa0\n   deferred_probe_work_func+0xb8/0x120\n   process_one_work+0x184/0x4e8\n   worker_thread+0x188/0x308\n   kthread+0x130/0x150\n   ret_from_fork+0x10/0x20\n\nSwitch both helpers to gpiod_set_value_cansleep() so such a reset GPIO can\nbe used without triggering the warning.\n\nThe reset GPIO has been driven with the non-sleeping gpiod_set_value()\nsince the driver was added in v4.19.  The call has since been refactored\nacross several files - from realtek-smi.c / realtek-mdio.c into the common\nrtl83xx.c module and then into the rtl83xx_reset_assert() and\nrtl83xx_reset_deassert() helpers (both in v6.9).  This patch therefore\napplies as-is only to kernels that carry those helpers (v6.9+); older\nstable kernels need the same gpiod_set_value_cansleep() conversion at the\ncorresponding open-coded call sites.","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":"net: dsa: realtek: use gpiod_set_value_cansleep for reset GPIO","id":"CVE-2026-80999","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"net: tun: bound receive headroom","id":"CVE-2026-81000"},"packages":[],"prev":{"headline":"net: bnxt: ring the doorbell when SW USO exits early","id":"CVE-2026-80998"},"products":["Linux"],"published":"2026-09-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A kernel warning occurs when a Realtek DSA switch reset GPIO is controlled by a sleeping I2C expander, potentially causing instability or denial of service during device probing.","url":"https://insights.sbomify.com/CVE-2026-80999/"}