{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-71305 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-71305 is a medium-severity vulnerability in Linux kernel, published on 27 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-2025-71305 and fix it if it is affected.\n\nWhat it is: CVE-2025-71305 is a medium-severity vulnerability in Linux kernel, published on 27 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-2025-71305 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-2025-71305/ (Markdown: https://insights.sbomify.com/CVE-2025-71305/index.md)","id":"CVE-2025-71305","markdown":"https://insights.sbomify.com/CVE-2025-71305/index.md","name":"CVE-2025-71305","record":{"aliases":["AZL-88602","BELL-CVE-2025-71305","DEBIAN-CVE-2025-71305","GHSA-fjxq-63fq-vq39","ROOT-OS-DEBIAN-11-CVE-2025-71305","ROOT-OS-UBUNTU-2204-CVE-2025-71305","ROOT-OS-UBUNTU-2404-CVE-2025-71305","UBUNTU-CVE-2025-71305"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A negative shift error in the Linux kernel's DP MST driver can cause a system crash when a monitor is disconnected during timeslot release.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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/display/dp_mst: Add protection against 0 vcpi\n\nWhen releasing a timeslot there is a slight chance we may end up\nwith the wrong payload mask due to overflow if the delayed_destroy_work\nends up coming into play after a DP 2.1 monitor gets disconnected\nwhich causes vcpi to become 0 then we try to make the payload =\n~BIT(vcpi - 1) which is a negative shift. VCPI id should never\nreally be 0 hence skip changing the payload mask if VCPI is 0.\n\nOtherwise it leads to\n\u003c7\u003e [515.287237] xe 0000:03:00.0: [drm:drm_dp_mst_get_port_malloc\n[drm_display_helper]] port ffff888126ce9000 (3)\n\u003c4\u003e [515.287267] -----------[ cut here ]-----------\n\u003c3\u003e [515.287268] UBSAN: shift-out-of-bounds in\n../drivers/gpu/drm/display/drm_dp_mst_topology.c:4575:36\n\u003c3\u003e [515.287271] shift exponent -1 is negative\n\u003c4\u003e [515.287275] CPU: 7 UID: 0 PID: 3108 Comm: kworker/u64:33 Tainted: G\nS U 6.17.0-rc6-lgci-xe-xe-3795-3e79699fa1b216e92+ #1 PREEMPT(voluntary)\n\u003c4\u003e [515.287279] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER\n\u003c4\u003e [515.287279] Hardware name: ASUS System Product Name/PRIME Z790-P\nWIFI, BIOS 1645 03/15/2024\n\u003c4\u003e [515.287281] Workqueue: drm_dp_mst_wq drm_dp_delayed_destroy_work\n[drm_display_helper]\n\u003c4\u003e [515.287303] Call Trace:\n\u003c4\u003e [515.287304] \u003cTASK\u003e\n\u003c4\u003e [515.287306] dump_stack_lvl+0xc1/0xf0\n\u003c4\u003e [515.287313] dump_stack+0x10/0x20\n\u003c4\u003e [515.287316] __ubsan_handle_shift_out_of_bounds+0x133/0x2e0\n\u003c4\u003e [515.287324] ? drm_atomic_get_private_obj_state+0x186/0x1d0\n\u003c4\u003e [515.287333] drm_dp_atomic_release_time_slots.cold+0x17/0x3d\n[drm_display_helper]\n\u003c4\u003e [515.287355] mst_connector_atomic_check+0x159/0x180 [xe]\n\u003c4\u003e [515.287546] drm_atomic_helper_check_modeset+0x4d9/0xfa0\n\u003c4\u003e [515.287550] ? __ww_mutex_lock.constprop.0+0x6f/0x1a60\n\u003c4\u003e [515.287562] intel_atomic_check+0x119/0x2b80 [xe]\n\u003c4\u003e [515.287740] ? find_held_lock+0x31/0x90\n\u003c4\u003e [515.287747] ? lock_release+0xce/0x2a0\n\u003c4\u003e [515.287754] drm_atomic_check_only+0x6a2/0xb40\n\u003c4\u003e [515.287758] ? drm_atomic_add_affected_connectors+0x12b/0x140\n\u003c4\u003e [515.287765] drm_atomic_commit+0x6e/0xf0\n\u003c4\u003e [515.287766] ? _pfx__drm_printfn_info+0x10/0x10\n\u003c4\u003e [515.287774] drm_client_modeset_commit_atomic+0x25c/0x2b0\n\u003c4\u003e [515.287794] drm_client_modeset_commit_locked+0x60/0x1b0\n\u003c4\u003e [515.287795] ? mutex_lock_nested+0x1b/0x30\n\u003c4\u003e [515.287801] drm_client_modeset_commit+0x26/0x50\n\u003c4\u003e [515.287804] __drm_fb_helper_restore_fbdev_mode_unlocked+0xdc/0x110\n\u003c4\u003e [515.287810] drm_fb_helper_hotplug_event+0x120/0x140\n\u003c4\u003e [515.287814] drm_fbdev_client_hotplug+0x28/0xd0\n\u003c4\u003e [515.287819] drm_client_hotplug+0x6c/0xf0\n\u003c4\u003e [515.287824] drm_client_dev_hotplug+0x9e/0xd0\n\u003c4\u003e [515.287829] drm_kms_helper_hotplug_event+0x1a/0x30\n\u003c4\u003e [515.287834] drm_dp_delayed_destroy_work+0x3df/0x410\n[drm_display_helper]\n\u003c4\u003e [515.287861] process_one_work+0x22b/0x6f0\n\u003c4\u003e [515.287874] worker_thread+0x1e8/0x3d0\n\u003c4\u003e [515.287879] ? __pfx_worker_thread+0x10/0x10\n\u003c4\u003e [515.287882] kthread+0x11c/0x250\n\u003c4\u003e [515.287886] ? __pfx_kthread+0x10/0x10\n\u003c4\u003e [515.287890] ret_from_fork+0x2d7/0x310\n\u003c4\u003e [515.287894] ? __pfx_kthread+0x10/0x10\n\u003c4\u003e [515.287897] ret_from_fork_asm+0x1a/0x30","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/display/dp_mst: Add protection against 0 vcpi","id":"CVE-2025-71305","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()","id":"CVE-2025-71306"},"packages":[],"prev":{"headline":"smack: /smack/doi: accept previously used values","id":"CVE-2025-71304"},"products":["Linux"],"published":"2026-05-27","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":"2026-05-30","vendors":["Linux"]},"summary":"A negative shift error in the Linux kernel's DP MST driver can cause a system crash when a monitor is disconnected during timeslot release.","url":"https://insights.sbomify.com/CVE-2025-71305/"}