{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-21960 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-21960 is a high-severity denial of service vulnerability in Linux kernel, published on 1 Apr 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-2025-21960 and fix it if it is affected.\n\nWhat it is: CVE-2025-21960 is a high-severity denial of service vulnerability in Linux kernel, published on 1 Apr 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-2025-21960 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-2025-21960/ (Markdown: https://insights.sbomify.com/CVE-2025-21960/index.md)","id":"CVE-2025-21960","markdown":"https://insights.sbomify.com/CVE-2025-21960/index.md","name":"CVE-2025-21960","record":{"aliases":["BELL-CVE-2025-21960","DEBIAN-CVE-2025-21960","GHSA-rqhf-vpjr-2pw8","ROOT-OS-UBUNTU-2404-CVE-2025-21960","UBUNTU-CVE-2025-21960"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Linux kernel network driver","requires_auth":"none","summary":"A logic error in the bnxt network driver causes kernel warnings and potential instability when XDP programs are used with checksum offload.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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\neth: bnxt: do not update checksum in bnxt_xdp_build_skb()\n\nThe bnxt_rx_pkt() updates ip_summed value at the end if checksum offload\nis enabled.\nWhen the XDP-MB program is attached and it returns XDP_PASS, the\nbnxt_xdp_build_skb() is called to update skb_shared_info.\nThe main purpose of bnxt_xdp_build_skb() is to update skb_shared_info,\nbut it updates ip_summed value too if checksum offload is enabled.\nThis is actually duplicate work.\n\nWhen the bnxt_rx_pkt() updates ip_summed value, it checks if ip_summed\nis CHECKSUM_NONE or not.\nIt means that ip_summed should be CHECKSUM_NONE at this moment.\nBut ip_summed may already be updated to CHECKSUM_UNNECESSARY in the\nXDP-MB-PASS path.\nSo the by skb_checksum_none_assert() WARNS about it.\n\nThis is duplicate work and updating ip_summed in the\nbnxt_xdp_build_skb() is not needed.\n\nSplat looks like:\nWARNING: CPU: 3 PID: 5782 at ./include/linux/skbuff.h:5155 bnxt_rx_pkt+0x479b/0x7610 [bnxt_en]\nModules linked in: bnxt_re bnxt_en rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs veth xt_nat xt_tcpudp xt_conntrack nft_chain_nat xt_MASQUERADE nf_]\nCPU: 3 UID: 0 PID: 5782 Comm: socat Tainted: G        W          6.14.0-rc4+ #27\nTainted: [W]=WARN\nHardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\nRIP: 0010:bnxt_rx_pkt+0x479b/0x7610 [bnxt_en]\nCode: 54 24 0c 4c 89 f1 4c 89 ff c1 ea 1f ff d3 0f 1f 00 49 89 c6 48 85 c0 0f 84 4c e5 ff ff 48 89 c7 e8 ca 3d a0 c8 e9 8f f4 ff ff \u003c0f\u003e 0b f\nRSP: 0018:ffff88881ba09928 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: 00000000c7590303 RCX: 0000000000000000\nRDX: 1ffff1104e7d1610 RSI: 0000000000000001 RDI: ffff8881c91300b8\nRBP: ffff88881ba09b28 R08: ffff888273e8b0d0 R09: ffff888273e8b070\nR10: ffff888273e8b010 R11: ffff888278b0f000 R12: ffff888273e8b080\nR13: ffff8881c9130e00 R14: ffff8881505d3800 R15: ffff888273e8b000\nFS:  00007f5a2e7be080(0000) GS:ffff88881ba00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fff2e708ff8 CR3: 000000013e3b0000 CR4: 00000000007506f0\nPKRU: 55555554\nCall Trace:\n \u003cIRQ\u003e\n ? __warn+0xcd/0x2f0\n ? bnxt_rx_pkt+0x479b/0x7610\n ? report_bug+0x326/0x3c0\n ? handle_bug+0x53/0xa0\n ? exc_invalid_op+0x14/0x50\n ? asm_exc_invalid_op+0x16/0x20\n ? bnxt_rx_pkt+0x479b/0x7610\n ? bnxt_rx_pkt+0x3e41/0x7610\n ? __pfx_bnxt_rx_pkt+0x10/0x10\n ? napi_complete_done+0x2cf/0x7d0\n __bnxt_poll_work+0x4e8/0x1220\n ? __pfx___bnxt_poll_work+0x10/0x10\n ? __pfx_mark_lock.part.0+0x10/0x10\n bnxt_poll_p5+0x36a/0xfa0\n ? __pfx_bnxt_poll_p5+0x10/0x10\n __napi_poll.constprop.0+0xa0/0x440\n net_rx_action+0x899/0xd00\n...\n\nFollowing ping.py patch adds xdp-mb-pass case. so ping.py is going\nto be able to reproduce this issue.","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: do not update checksum in bnxt_xdp_build_skb()","id":"CVE-2025-21960","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":5,"next":{"headline":"eth: bnxt: fix truesize for mb-xdp-pass case","id":"CVE-2025-21961"},"packages":[],"prev":{"headline":"netfilter: nf_conncount: Fully initialize struct nf_conncount_tuple in insert_tree()","id":"CVE-2025-21959"},"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":"2026-08-05","vendors":["Linux"]},"summary":"A logic error in the bnxt network driver causes kernel warnings and potential instability when XDP programs are used with checksum offload.","url":"https://insights.sbomify.com/CVE-2025-21960/"}