{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-71087", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.649Z", "datePublished": "2026-01-13T15:34:49.691Z", "dateUpdated": "2026-06-11T18:44:14.263Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:54:29.688Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niavf: fix off-by-one issues in iavf_config_rss_reg()\n\nThere are off-by-one bugs when configuring RSS hash key and lookup\ntable, causing out-of-bounds reads to memory [1] and out-of-bounds\nwrites to device registers.\n\nBefore commit 43a3d9ba34c9 (\"i40evf: Allow PF driver to configure RSS\"),\nthe loop upper bounds were:\n i <= I40E_VFQF_{HKEY,HLUT}_MAX_INDEX\nwhich is safe since the value is the last valid index.\n\nThat commit changed the bounds to:\n i <= adapter->rss_{key,lut}_size / 4\nwhere `rss_{key,lut}_size / 4` is the number of dwords, so the last\nvalid index is `(rss_{key,lut}_size / 4) - 1`. Therefore, using `<=`\naccesses one element past the end.\n\nFix the issues by using `<` instead of `<=`, ensuring we do not exceed\nthe bounds.\n\n[1] KASAN splat about rss_key_size off-by-one\n BUG: KASAN: slab-out-of-bounds in iavf_config_rss+0x619/0x800\n Read of size 4 at addr ffff888102c50134 by task kworker/u8:6/63\n\n CPU: 0 UID: 0 PID: 63 Comm: kworker/u8:6 Not tainted 6.18.0-rc2-enjuk-tnguy-00378-g3005f5b77652-dirty #156 PREEMPT(voluntary)\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n Workqueue: iavf iavf_watchdog_task\n Call Trace:\n \n dump_stack_lvl+0x6f/0xb0\n print_report+0x170/0x4f3\n kasan_report+0xe1/0x1a0\n iavf_config_rss+0x619/0x800\n iavf_watchdog_task+0x2be7/0x3230\n process_one_work+0x7fd/0x1420\n worker_thread+0x4d1/0xd40\n kthread+0x344/0x660\n ret_from_fork+0x249/0x320\n ret_from_fork_asm+0x1a/0x30\n \n\n Allocated by task 63:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x7f/0x90\n __kmalloc_noprof+0x246/0x6f0\n iavf_watchdog_task+0x28fc/0x3230\n process_one_work+0x7fd/0x1420\n worker_thread+0x4d1/0xd40\n kthread+0x344/0x660\n ret_from_fork+0x249/0x320\n ret_from_fork_asm+0x1a/0x30\n\n The buggy address belongs to the object at ffff888102c50100\n which belongs to the cache kmalloc-64 of size 64\n The buggy address is located 0 bytes to the right of\n allocated 52-byte region [ffff888102c50100, ffff888102c50134)\n\n The buggy address belongs to the physical page:\n page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c50\n flags: 0x200000000000000(node=0|zone=2)\n page_type: f5(slab)\n raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000\n raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000\n page dumped because: kasan: bad access detected\n\n Memory state around the buggy address:\n ffff888102c50000: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc\n ffff888102c50080: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc\n >ffff888102c50100: 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc fc\n ^\n ffff888102c50180: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc\n ffff888102c50200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/intel/iavf/iavf_main.c" ], "versions": [ { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "ceb8459df28d22c225a82d74c0f725f2a935d194", "status": "affected", "versionType": "git" }, { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "5bb18bfd505ca1affbca921462c350095a6c798c", "status": "affected", "versionType": "git" }, { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "d7369dc8dd7cbf5cee3a22610028d847b6f02982", "status": "affected", "versionType": "git" }, { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "18de0e41d69d97fab10b91fecf10ae78a5e43232", "status": "affected", "versionType": "git" }, { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "f36de3045d006e6d9be1be495f2ed88d1721e752", "status": "affected", "versionType": "git" }, { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "3095228e1320371e143835d0cebeef1a8a754c66", "status": "affected", "versionType": "git" }, { "version": "43a3d9ba34c9ca313573201d3f45de5ab3494cec", "lessThan": "6daa2893f323981c7894c68440823326e93a7d61", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/intel/iavf/iavf_main.c" ], "versions": [ { "version": "4.7", "status": "affected" }, { "version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.64", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.4", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.12.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.18.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/ceb8459df28d22c225a82d74c0f725f2a935d194" }, { "url": "https://git.kernel.org/stable/c/5bb18bfd505ca1affbca921462c350095a6c798c" }, { "url": "https://git.kernel.org/stable/c/d7369dc8dd7cbf5cee3a22610028d847b6f02982" }, { "url": "https://git.kernel.org/stable/c/18de0e41d69d97fab10b91fecf10ae78a5e43232" }, { "url": "https://git.kernel.org/stable/c/f36de3045d006e6d9be1be495f2ed88d1721e752" }, { "url": "https://git.kernel.org/stable/c/3095228e1320371e143835d0cebeef1a8a754c66" }, { "url": "https://git.kernel.org/stable/c/6daa2893f323981c7894c68440823326e93a7d61" } ], "title": "iavf: fix off-by-one issues in iavf_config_rss_reg()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2025-71087", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2026-06-10T20:41:36.543195Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-11T18:44:14.263Z" } } ] } }