{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-21873 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-21873 is a medium-severity vulnerability in Linux kernel, published on 27 Mar 2025. 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-2025-21873 and fix it if it is affected.\n\nWhat it is: CVE-2025-21873 is a medium-severity vulnerability in Linux kernel, published on 27 Mar 2025. 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-2025-21873 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-2025-21873/ (Markdown: https://insights.sbomify.com/CVE-2025-21873/index.md)","id":"CVE-2025-21873","markdown":"https://insights.sbomify.com/CVE-2025-21873/index.md","name":"CVE-2025-21873","record":{"aliases":["BELL-CVE-2025-21873","DEBIAN-CVE-2025-21873","GHSA-69qf-f58q-rm7m","ROOT-OS-UBUNTU-2404-CVE-2025-21873","UBUNTU-CVE-2025-21873"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel UFS driver","requires_auth":"low_privilege","summary":"A local attacker can cause a kernel crash in the UFS driver by triggering an ARPMB command failure, leading to a denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"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\nscsi: ufs: core: bsg: Fix crash when arpmb command fails\n\nIf the device doesn't support arpmb we'll crash due to copying user data in\nbsg_transport_sg_io_fn().\n\nIn the case where ufs_bsg_exec_advanced_rpmb_req() returns an error, do not\nset the job's reply_len.\n\nMemory crash backtrace:\n3,1290,531166405,-;ufshcd 0000:00:12.5: ARPMB OP failed: error code -22\n\n4,1308,531166555,-;Call Trace:\n\n4,1309,531166559,-; \u003cTASK\u003e\n\n4,1310,531166565,-; ? show_regs+0x6d/0x80\n\n4,1311,531166575,-; ? die+0x37/0xa0\n\n4,1312,531166583,-; ? do_trap+0xd4/0xf0\n\n4,1313,531166593,-; ? do_error_trap+0x71/0xb0\n\n4,1314,531166601,-; ? usercopy_abort+0x6c/0x80\n\n4,1315,531166610,-; ? exc_invalid_op+0x52/0x80\n\n4,1316,531166622,-; ? usercopy_abort+0x6c/0x80\n\n4,1317,531166630,-; ? asm_exc_invalid_op+0x1b/0x20\n\n4,1318,531166643,-; ? usercopy_abort+0x6c/0x80\n\n4,1319,531166652,-; __check_heap_object+0xe3/0x120\n\n4,1320,531166661,-; check_heap_object+0x185/0x1d0\n\n4,1321,531166670,-; __check_object_size.part.0+0x72/0x150\n\n4,1322,531166679,-; __check_object_size+0x23/0x30\n\n4,1323,531166688,-; bsg_transport_sg_io_fn+0x314/0x3b0","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":"scsi: ufs: core: bsg: Fix crash when arpmb command fails","id":"CVE-2025-21873","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"dm-integrity: Avoid divide by zero in table status in Inline mode","id":"CVE-2025-21874"},"packages":[],"prev":{"headline":"efi: Don't map the entire mokvar table to determine its size","id":"CVE-2025-21872"},"products":["Linux"],"published":"2025-03-27","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":"2026-05-11","vendors":["Linux"]},"summary":"A local attacker can cause a kernel crash in the UFS driver by triggering an ARPMB command failure, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2025-21873/"}