{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-21973 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-21973 is a high-severity vulnerability in Linux kernel, published on 1 Apr 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-2025-21973 and fix it if it is affected.\n\nWhat it is: CVE-2025-21973 is a high-severity vulnerability in Linux kernel, published on 1 Apr 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-2025-21973 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-2025-21973/ (Markdown: https://insights.sbomify.com/CVE-2025-21973/index.md)","id":"CVE-2025-21973","markdown":"https://insights.sbomify.com/CVE-2025-21973/index.md","name":"CVE-2025-21973","record":{"aliases":["BELL-CVE-2025-21973","DEBIAN-CVE-2025-21973","GHSA-fhg3-8v6r-3g42","UBUNTU-CVE-2025-21973"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A local attacker can trigger a kernel panic by querying queue statistics on a downed network interface, causing 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":7.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\neth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}\n\nWhen qstats-get operation is executed, callbacks of netdev_stats_ops\nare called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats\nfrom sw_stats in the rings.\nBut {rx | tx | cp}_ring are allocated when the interface is up.\nSo, these rings are not allocated when the interface is down.\n\nThe qstats-get is allowed even if the interface is down. However,\nthe bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring\nwithout null check.\nSo, it needs to avoid accessing rings if the interface is down.\n\nReproducer:\n ip link set $interface down\n ./cli.py --spec netdev.yaml --dump qstats-get\nOR\n ip link set $interface down\n python ./stats.py\n\nSplat looks like:\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 1680fa067 P4D 1680fa067 PUD 16be3b067 PMD 0\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 0 UID: 0 PID: 1495 Comm: python3 Not tainted 6.14.0-rc4+ #32 5cd0f999d5a15c574ac72b3e4b907341\n Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\n RIP: 0010:bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en]\n Code: c6 87 b5 18 00 00 02 eb a2 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 01\n RSP: 0018:ffffabef43cdb7e0 EFLAGS: 00010282\n RAX: 0000000000000000 RBX: ffffffffc04c8710 RCX: 0000000000000000\n RDX: ffffabef43cdb858 RSI: 0000000000000000 RDI: ffff8d504e850000\n RBP: ffff8d506c9f9c00 R08: 0000000000000004 R09: ffff8d506bcd901c\n R10: 0000000000000015 R11: ffff8d506bcd9000 R12: 0000000000000000\n R13: ffffabef43cdb8c0 R14: ffff8d504e850000 R15: 0000000000000000\n FS:  00007f2c5462b080(0000) GS:ffff8d575f600000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000000 CR3: 0000000167fd0000 CR4: 00000000007506f0\n PKRU: 55555554\n Call Trace:\n  \u003cTASK\u003e\n  ? __die+0x20/0x70\n  ? page_fault_oops+0x15a/0x460\n  ? sched_balance_find_src_group+0x58d/0xd10\n  ? exc_page_fault+0x6e/0x180\n  ? asm_exc_page_fault+0x22/0x30\n  ? bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en cdd546fd48563c280cfd30e9647efa420db07bf1]\n  netdev_nl_stats_by_netdev+0x2b1/0x4e0\n  ? xas_load+0x9/0xb0\n  ? xas_find+0x183/0x1d0\n  ? xa_find+0x8b/0xe0\n  netdev_nl_qstats_get_dumpit+0xbf/0x1e0\n  genl_dumpit+0x31/0x90\n  netlink_dump+0x1a8/0x360","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":"eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}","id":"CVE-2025-21973","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":3,"next":{"headline":"eth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()","id":"CVE-2025-21974"},"packages":[],"prev":{"headline":"net: mctp: unshare packets when reassembling","id":"CVE-2025-21972"},"products":["Linux"],"published":"2025-04-01","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 trigger a kernel panic by querying queue statistics on a downed network interface, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2025-21973/"}