{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53986 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53986 is a high-severity denial of service vulnerability in Linux, published on 24 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53986 and fix it if it is affected.\n\nWhat it is: CVE-2023-53986 is a high-severity denial of service vulnerability in Linux, published on 24 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-53986 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-2023-53986/ (Markdown: https://insights.sbomify.com/CVE-2023-53986/index.md)","id":"CVE-2023-53986","markdown":"https://insights.sbomify.com/CVE-2023-53986/index.md","name":"CVE-2023-53986","record":{"aliases":["BELL-CVE-2023-53986","DEBIAN-CVE-2023-53986","GHSA-6gh3-92r7-fcvf","UBUNTU-CVE-2023-53986"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A kernel panic occurs on BCM6358 MIPS devices when booting from TP1 with USB enabled, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmips: bmips: BCM6358: disable RAC flush for TP1\n\nRAC flush causes kernel panics on BCM6358 with EHCI/OHCI when booting from TP1:\n[    3.881739] usb 1-1: new high-speed USB device number 2 using ehci-platform\n[    3.895011] Reserved instruction in kernel code[#1]:\n[    3.900113] CPU: 0 PID: 1 Comm: init Not tainted 5.10.16 #0\n[    3.905829] $ 0   : 00000000 10008700 00000000 77d94060\n[    3.911238] $ 4   : 7fd1f088 00000000 81431cac 81431ca0\n[    3.916641] $ 8   : 00000000 ffffefff 8075cd34 00000000\n[    3.922043] $12   : 806f8d40 f3e812b7 00000000 000d9aaa\n[    3.927446] $16   : 7fd1f068 7fd1f080 7ff559b8 81428470\n[    3.932848] $20   : 00000000 00000000 55590000 77d70000\n[    3.938251] $24   : 00000018 00000010\n[    3.943655] $28   : 81430000 81431e60 81431f28 800157fc\n[    3.949058] Hi    : 00000000\n[    3.952013] Lo    : 00000000\n[    3.955019] epc   : 80015808 setup_sigcontext+0x54/0x24c\n[    3.960464] ra    : 800157fc setup_sigcontext+0x48/0x24c\n[    3.965913] Status: 10008703\tKERNEL EXL IE\n[    3.970216] Cause : 00800028 (ExcCode 0a)\n[    3.974340] PrId  : 0002a010 (Broadcom BMIPS4350)\n[    3.979170] Modules linked in: ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug usbcore nls_base usb_common\n[    3.992907] Process init (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=77e22ec8)\n[    4.000776] Stack : 81431ef4 7fd1f080 81431f28 81428470 7fd1f068 81431edc 7ff559b8 81428470\n[    4.009467]         81431f28 7fd1f080 55590000 77d70000 77d5498c 80015c70 806f0000 8063ae74\n[    4.018149]         08100002 81431f28 0000000a 08100002 81431f28 0000000a 77d6b418 00000003\n[    4.026831]         ffffffff 80016414 80080734 81431ecc 81431ecc 00000001 00000000 04000000\n[    4.035512]         77d54874 00000000 00000000 00000000 00000000 00000012 00000002 00000000\n[    4.044196]         ...\n[    4.046706] Call Trace:\n[    4.049238] [\u003c80015808\u003e] setup_sigcontext+0x54/0x24c\n[    4.054356] [\u003c80015c70\u003e] setup_frame+0xdc/0x124\n[    4.059015] [\u003c80016414\u003e] do_notify_resume+0x1dc/0x288\n[    4.064207] [\u003c80011b50\u003e] work_notifysig+0x10/0x18\n[    4.069036]\n[    4.070538] Code: 8fc300b4  00001025  26240008 \u003cac820000\u003e ac830004  3c048063  0c0228aa  24846a00  26240010\n[    4.080686]\n[    4.082517] ---[ end trace 22a8edb41f5f983b ]---\n[    4.087374] Kernel panic - not syncing: Fatal exception\n[    4.092753] Rebooting in 1 seconds..\n\nBecause the bootloader (CFE) is not initializing the Read-ahead cache properly\non the second thread (TP1). Since the RAC was not initialized properly, we\nshould avoid flushing it at the risk of corrupting the instruction stream as\nseen in the trace above.","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":"mips: bmips: BCM6358: disable RAC flush for TP1","id":"CVE-2023-53986","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":6,"next":{"headline":"ping: Fix potentail NULL deref for /proc/net/icmp.","id":"CVE-2023-53987"},"packages":[],"prev":{"headline":"Zstore 6.5.4 - Reflected Cross-Site Scripting (XSS)","id":"CVE-2023-53985"},"products":["Linux"],"published":"2025-12-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A kernel panic occurs on BCM6358 MIPS devices when booting from TP1 with USB enabled, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2023-53986/"}