{"api_version":"1","generated_at":"2026-11-11T18:31:56+00:00","cve":"CVE-2025-21974","urls":{"html":"https://cve.report/CVE-2025-21974","api":"https://cve.report/api/cve/CVE-2025-21974.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-21974","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-21974"},"summary":{"title":"eth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\neth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()\n\nThe bnxt_queue_mem_alloc() is called to allocate new queue memory when\na queue is restarted.\nIt internally accesses rx buffer descriptor corresponding to the index.\nThe rx buffer descriptor is allocated and set when the interface is up\nand it's freed when the interface is down.\nSo, if queue is restarted if interface is down, kernel panic occurs.\n\nSplat looks like:\n BUG: unable to handle page fault for address: 000000000000b240\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 UID: 0 PID: 1563 Comm: ncdevmem2 Not tainted 6.14.0-rc2+ #9 844ddba6e7c459cafd0bf4db9a3198e\n Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\n RIP: 0010:bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en]\n Code: 41 54 4d 89 c4 4d 69 c0 c0 05 00 00 55 48 89 f5 53 48 89 fb 4c 8d b5 40 05 00 00 48 83 ec 15\n RSP: 0018:ffff9dcc83fef9e8 EFLAGS: 00010202\n RAX: ffffffffc0457720 RBX: ffff934ed8d40000 RCX: 0000000000000000\n RDX: 000000000000001f RSI: ffff934ea508f800 RDI: ffff934ea508f808\n RBP: ffff934ea508f800 R08: 000000000000b240 R09: ffff934e84f4b000\n R10: ffff9dcc83fefa30 R11: ffff934e84f4b000 R12: 000000000000001f\n R13: ffff934ed8d40ac0 R14: ffff934ea508fd40 R15: ffff934e84f4b000\n FS:  00007fa73888c740(0000) GS:ffff93559f780000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000000000b240 CR3: 0000000145a2e000 CR4: 00000000007506f0\n PKRU: 55555554\n Call Trace:\n  <TASK>\n  ? __die+0x20/0x70\n  ? page_fault_oops+0x15a/0x460\n  ? exc_page_fault+0x6e/0x180\n  ? asm_exc_page_fault+0x22/0x30\n  ? __pfx_bnxt_queue_mem_alloc+0x10/0x10 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7]\n  ? bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7]\n  netdev_rx_queue_restart+0xc5/0x240\n  net_devmem_bind_dmabuf_to_queue+0xf8/0x200\n  netdev_nl_bind_rx_doit+0x3a7/0x450\n  genl_family_rcv_msg_doit+0xd9/0x130\n  genl_rcv_msg+0x184/0x2b0\n  ? __pfx_netdev_nl_bind_rx_doit+0x10/0x10\n  ? __pfx_genl_rcv_msg+0x10/0x10\n  netlink_rcv_skb+0x54/0x100\n  genl_rcv+0x24/0x40\n...","state":"PUBLISHED","assigner":"Linux","published_at":"2025-04-01 16:15:28","updated_at":"2026-11-05 21:17:46"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/14eb5f0d6554653f4b159835c2f77b2a9bd7e9be","name":"https://git.kernel.org/stable/c/14eb5f0d6554653f4b159835c2f77b2a9bd7e9be","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ca2456e073957781e1184de68551c65161b2bd30","name":"https://git.kernel.org/stable/c/ca2456e073957781e1184de68551c65161b2bd30","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d3b8cd8a8a98c7c83a693bd651f1919be36a57f2","name":"https://git.kernel.org/stable/c/d3b8cd8a8a98c7c83a693bd651f1919be36a57f2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-21974","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21974","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2d694c27d32efc9467a8a20e4ad641ab5adfd07d 14eb5f0d6554653f4b159835c2f77b2a9bd7e9be git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2d694c27d32efc9467a8a20e4ad641ab5adfd07d d3b8cd8a8a98c7c83a693bd651f1919be36a57f2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2d694c27d32efc9467a8a20e4ad641ab5adfd07d ca2456e073957781e1184de68551c65161b2bd30 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.20 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13.8 6.13.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"21974","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2025-21974","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-05T20:37:14.386482Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-05T20:41:48.393Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/broadcom/bnxt/bnxt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"14eb5f0d6554653f4b159835c2f77b2a9bd7e9be","status":"affected","version":"2d694c27d32efc9467a8a20e4ad641ab5adfd07d","versionType":"git"},{"lessThan":"d3b8cd8a8a98c7c83a693bd651f1919be36a57f2","status":"affected","version":"2d694c27d32efc9467a8a20e4ad641ab5adfd07d","versionType":"git"},{"lessThan":"ca2456e073957781e1184de68551c65161b2bd30","status":"affected","version":"2d694c27d32efc9467a8a20e4ad641ab5adfd07d","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/broadcom/bnxt/bnxt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.20","versionType":"semver"},{"lessThanOrEqual":"6.13.*","status":"unaffected","version":"6.13.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.14","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.20","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.13.8","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.14","versionStartIncluding":"6.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\neth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()\n\nThe bnxt_queue_mem_alloc() is called to allocate new queue memory when\na queue is restarted.\nIt internally accesses rx buffer descriptor corresponding to the index.\nThe rx buffer descriptor is allocated and set when the interface is up\nand it's freed when the interface is down.\nSo, if queue is restarted if interface is down, kernel panic occurs.\n\nSplat looks like:\n BUG: unable to handle page fault for address: 000000000000b240\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 UID: 0 PID: 1563 Comm: ncdevmem2 Not tainted 6.14.0-rc2+ #9 844ddba6e7c459cafd0bf4db9a3198e\n Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\n RIP: 0010:bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en]\n Code: 41 54 4d 89 c4 4d 69 c0 c0 05 00 00 55 48 89 f5 53 48 89 fb 4c 8d b5 40 05 00 00 48 83 ec 15\n RSP: 0018:ffff9dcc83fef9e8 EFLAGS: 00010202\n RAX: ffffffffc0457720 RBX: ffff934ed8d40000 RCX: 0000000000000000\n RDX: 000000000000001f RSI: ffff934ea508f800 RDI: ffff934ea508f808\n RBP: ffff934ea508f800 R08: 000000000000b240 R09: ffff934e84f4b000\n R10: ffff9dcc83fefa30 R11: ffff934e84f4b000 R12: 000000000000001f\n R13: ffff934ed8d40ac0 R14: ffff934ea508fd40 R15: ffff934e84f4b000\n FS:  00007fa73888c740(0000) GS:ffff93559f780000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000000000b240 CR3: 0000000145a2e000 CR4: 00000000007506f0\n PKRU: 55555554\n Call Trace:\n  <TASK>\n  ? __die+0x20/0x70\n  ? page_fault_oops+0x15a/0x460\n  ? exc_page_fault+0x6e/0x180\n  ? asm_exc_page_fault+0x22/0x30\n  ? __pfx_bnxt_queue_mem_alloc+0x10/0x10 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7]\n  ? bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7]\n  netdev_rx_queue_restart+0xc5/0x240\n  net_devmem_bind_dmabuf_to_queue+0xf8/0x200\n  netdev_nl_bind_rx_doit+0x3a7/0x450\n  genl_family_rcv_msg_doit+0xd9/0x130\n  genl_rcv_msg+0x184/0x2b0\n  ? __pfx_netdev_nl_bind_rx_doit+0x10/0x10\n  ? __pfx_genl_rcv_msg+0x10/0x10\n  netlink_rcv_skb+0x54/0x100\n  genl_rcv+0x24/0x40\n..."}],"providerMetadata":{"dateUpdated":"2026-05-11T21:10:11.663Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/14eb5f0d6554653f4b159835c2f77b2a9bd7e9be"},{"url":"https://git.kernel.org/stable/c/d3b8cd8a8a98c7c83a693bd651f1919be36a57f2"},{"url":"https://git.kernel.org/stable/c/ca2456e073957781e1184de68551c65161b2bd30"}],"title":"eth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-21974","datePublished":"2025-04-01T15:47:06.055Z","dateReserved":"2024-12-29T08:45:45.797Z","dateUpdated":"2026-11-05T20:41:48.393Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-04-01 16:15:28","lastModifiedDate":"2026-11-05 21:17:46","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-05T20:37:14.386482Z","id":"CVE-2025-21974","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.20","matchCriteriaId":"A8E66DB4-C0CC-4C05-969A-26953A84F318"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.13.8","matchCriteriaId":"0A20D4D7-B329-4C68-B662-76062EA7DCF0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*","matchCriteriaId":"186716B6-2B66-4BD0-852E-D48E71C0C85F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*","matchCriteriaId":"0D3E781C-403A-498F-9DA9-ECEE50F41E75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*","matchCriteriaId":"66619FB8-0AAF-4166-B2CF-67B24143261D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*","matchCriteriaId":"D3D6550E-6679-4560-902D-AF52DCFE905B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*","matchCriteriaId":"45B90F6B-BEC7-4D4E-883A-9DBADE021750"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*","matchCriteriaId":"1759FFB7-531C-41B1-9AE1-FD3D80E0D920"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"21974","Ordinal":"1","Title":"eth: bnxt: return fail if interface is down in bnxt_queue_mem_al","CVE":"CVE-2025-21974","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"21974","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\neth: bnxt: return fail if interface is down in bnxt_queue_mem_alloc()\n\nThe bnxt_queue_mem_alloc() is called to allocate new queue memory when\na queue is restarted.\nIt internally accesses rx buffer descriptor corresponding to the index.\nThe rx buffer descriptor is allocated and set when the interface is up\nand it's freed when the interface is down.\nSo, if queue is restarted if interface is down, kernel panic occurs.\n\nSplat looks like:\n BUG: unable to handle page fault for address: 000000000000b240\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 UID: 0 PID: 1563 Comm: ncdevmem2 Not tainted 6.14.0-rc2+ #9 844ddba6e7c459cafd0bf4db9a3198e\n Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\n RIP: 0010:bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en]\n Code: 41 54 4d 89 c4 4d 69 c0 c0 05 00 00 55 48 89 f5 53 48 89 fb 4c 8d b5 40 05 00 00 48 83 ec 15\n RSP: 0018:ffff9dcc83fef9e8 EFLAGS: 00010202\n RAX: ffffffffc0457720 RBX: ffff934ed8d40000 RCX: 0000000000000000\n RDX: 000000000000001f RSI: ffff934ea508f800 RDI: ffff934ea508f808\n RBP: ffff934ea508f800 R08: 000000000000b240 R09: ffff934e84f4b000\n R10: ffff9dcc83fefa30 R11: ffff934e84f4b000 R12: 000000000000001f\n R13: ffff934ed8d40ac0 R14: ffff934ea508fd40 R15: ffff934e84f4b000\n FS:  00007fa73888c740(0000) GS:ffff93559f780000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000000000b240 CR3: 0000000145a2e000 CR4: 00000000007506f0\n PKRU: 55555554\n Call Trace:\n  <TASK>\n  ? __die+0x20/0x70\n  ? page_fault_oops+0x15a/0x460\n  ? exc_page_fault+0x6e/0x180\n  ? asm_exc_page_fault+0x22/0x30\n  ? __pfx_bnxt_queue_mem_alloc+0x10/0x10 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7]\n  ? bnxt_queue_mem_alloc+0x3f/0x4e0 [bnxt_en 7f85e76f4d724ba07471d7e39d9e773aea6597b7]\n  netdev_rx_queue_restart+0xc5/0x240\n  net_devmem_bind_dmabuf_to_queue+0xf8/0x200\n  netdev_nl_bind_rx_doit+0x3a7/0x450\n  genl_family_rcv_msg_doit+0xd9/0x130\n  genl_rcv_msg+0x184/0x2b0\n  ? __pfx_netdev_nl_bind_rx_doit+0x10/0x10\n  ? __pfx_genl_rcv_msg+0x10/0x10\n  netlink_rcv_skb+0x54/0x100\n  genl_rcv+0x24/0x40\n...","Type":"Description","Title":"eth: bnxt: return fail if interface is down in bnxt_queue_mem_al"}]}}}