CVE-2025-21981

{"id": "CVE-2025-21981", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-04-01T16:15:29.503", "references": [{"url": "https://git.kernel.org/stable/c/23d97f18901ef5e4e264e3b1777fe65c760186b5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/3b27e6e10a32589fcd293b8933ab6de9387a460e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5d30d256661fc11b6e73fac6c3783a702e1006a3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/78f3d64b30210c0e521c59357431aca14024cb79", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e6902101f34f098af59b0d1d8cf90c4124c02c6a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ef2bc94059836a115430a6ad9d2838b0b34dc8f5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fcbacc47d16306c87ad1b820b7a575f6e9eae58b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-401"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix memory leak in aRFS after reset\n\nFix aRFS (accelerated Receive Flow Steering) structures memory leak by\nadding a checker to verify if aRFS memory is already allocated while\nconfiguring VSI. aRFS objects are allocated in two cases:\n- as part of VSI initialization (at probe), and\n- as part of reset handling\n\nHowever, VSI reconfiguration executed during reset involves memory\nallocation one more time, without prior releasing already allocated\nresources. This led to the memory leak with the following signature:\n\n[root@os-delivery ~]# cat /sys/kernel/debug/kmemleak\nunreferenced object 0xff3c1ca7252e6000 (size 8192):\n comm \"kworker/0:0\", pid 8, jiffies 4296833052\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc 0):\n [<ffffffff991ec485>] __kmalloc_cache_noprof+0x275/0x340\n [<ffffffffc0a6e06a>] ice_init_arfs+0x3a/0xe0 [ice]\n [<ffffffffc09f1027>] ice_vsi_cfg_def+0x607/0x850 [ice]\n [<ffffffffc09f244b>] ice_vsi_setup+0x5b/0x130 [ice]\n [<ffffffffc09c2131>] ice_init+0x1c1/0x460 [ice]\n [<ffffffffc09c64af>] ice_probe+0x2af/0x520 [ice]\n [<ffffffff994fbcd3>] local_pci_probe+0x43/0xa0\n [<ffffffff98f07103>] work_for_cpu_fn+0x13/0x20\n [<ffffffff98f0b6d9>] process_one_work+0x179/0x390\n [<ffffffff98f0c1e9>] worker_thread+0x239/0x340\n [<ffffffff98f14abc>] kthread+0xcc/0x100\n [<ffffffff98e45a6d>] ret_from_fork+0x2d/0x50\n [<ffffffff98e083ba>] ret_from_fork_asm+0x1a/0x30\n ..."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ice: corrige p\u00e9rdida de memoria en aRFS despu\u00e9s del reinicio Corrige la p\u00e9rdida de memoria de las estructuras aRFS (direcci\u00f3n de flujo de recepci\u00f3n acelerada) agregando un verificador para verificar si la memoria aRFS ya est\u00e1 asignada mientras se configura VSI. Los objetos aRFS se asignan en dos casos: - como parte de la inicializaci\u00f3n de VSI (en la sonda), y - como parte de la gesti\u00f3n del reinicio. Sin embargo, la reconfiguraci\u00f3n de VSI ejecutada durante el reinicio implica la asignaci\u00f3n de memoria una vez m\u00e1s, sin liberar previamente los recursos ya asignados. Esto provoc\u00f3 la fuga de memoria con la siguiente firma: [root@os-delivery ~]# cat /sys/kernel/debug/kmemleak unreferenced object 0xff3c1ca7252e6000 (size 8192): comm \"kworker/0:0\", pid 8, jiffies 4296833052 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): [] __kmalloc_cache_noprof+0x275/0x340 [] ice_init_arfs+0x3a/0xe0 [ice] [] ice_vsi_cfg_def+0x607/0x850 [ice] [] ice_vsi_setup+0x5b/0x130 [ice] [] ice_init+0x1c1/0x460 [ice] [] ice_probe+0x2af/0x520 [ice] [] local_pci_probe+0x43/0xa0 [] work_for_cpu_fn+0x13/0x20 [] process_one_work+0x179/0x390 [] worker_thread+0x239/0x340 [] kthread+0xcc/0x100 [] ret_from_fork+0x2d/0x50 [] ret_from_fork_asm+0x1a/0x30 ... "}], "lastModified": "2025-11-03T20:17:34.533", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "433045BA-C201-4126-9F76-1749DFE6E101", "versionEndExcluding": "6.1.132", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "994E0F00-FAC4-40E4-9068-C7D4D8242EC8", "versionEndExcluding": "6.6.84", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "60E9C5DF-D778-4572-848A-5D6CFFE022CA", "versionEndExcluding": "6.12.20", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A20D4D7-B329-4C68-B662-76062EA7DCF0", "versionEndExcluding": "6.13.8", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3D6550E-6679-4560-902D-AF52DCFE905B"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "45B90F6B-BEC7-4D4E-883A-9DBADE021750"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1759FFB7-531C-41B1-9AE1-FD3D80E0D920"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}