CVE-2022-49931

{"id": "CVE-2022-49931", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2025-05-01T15:16:19.087", "references": [{"url": "https://git.kernel.org/stable/c/1afac08b39d85437187bb2a92d89a741b1078f55", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/25760a41e3802f54aadcc31385543665ab349b8e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7c4260f8f188df32414a5ecad63e8b934c2aa3f0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b8bcff99b07cc175a6ee12a52db51cdd2229586c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ba95409d6b580501ff6d78efd00064f7df669926", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/hfi1: Correctly move list in sc_disable()\n\nCommit 13bac861952a (\"IB/hfi1: Fix abba locking issue with sc_disable()\")\nincorrectly tries to move a list from one list head to another. The\nresult is a kernel crash.\n\nThe crash is triggered when a link goes down and there are waiters for a\nsend to complete. The following signature is seen:\n\n BUG: kernel NULL pointer dereference, address: 0000000000000030\n [...]\n Call Trace:\n sc_disable+0x1ba/0x240 [hfi1]\n pio_freeze+0x3d/0x60 [hfi1]\n handle_freeze+0x27/0x1b0 [hfi1]\n process_one_work+0x1b0/0x380\n ? process_one_work+0x380/0x380\n worker_thread+0x30/0x360\n ? process_one_work+0x380/0x380\n kthread+0xd7/0x100\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30\n\nThe fix is to use the correct call to move the list."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/hfi1: Mover correctamente la lista en sc_disable(). El commit 13bac861952a (\"IB/hfi1: Solucionar el problema de bloqueo de abba con sc_disable()\") intenta mover incorrectamente una lista de una cabecera a otra. Esto provoca un fallo del kernel. El fallo se activa cuando un enlace se cae y hay esperas para que se complete un env\u00edo. Se observa la siguiente firma: ERROR: desreferencia de puntero nulo del kernel, direcci\u00f3n: 000000000000030 [...] Seguimiento de llamadas: sc_disable+0x1ba/0x240 [hfi1] pio_freeze+0x3d/0x60 [hfi1] handle_freeze+0x27/0x1b0 [hfi1] process_one_work+0x1b0/0x380 ? process_one_work+0x380/0x380 worker_thread+0x30/0x360 ? process_one_work+0x380/0x380 kthread+0xd7/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 La soluci\u00f3n es utilizar la llamada correcta para mover la lista."}], "lastModified": "2025-05-07T13:29:02.710", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BDFAB6A5-9A63-4F7C-919F-15F161381091", "versionEndExcluding": "5.4.224", "versionStartIncluding": "5.4.157"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C395A4B6-7D4C-4782-A571-27F4A03657B8", "versionEndExcluding": "5.10.154", "versionStartIncluding": "5.10.77"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCEFCD80-1AE5-488A-B899-FCA4D6012958", "versionEndExcluding": "5.15.78", "versionStartIncluding": "5.14.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC9A754E-625D-42F3-87A7-960D643E2867", "versionEndExcluding": "6.0.8", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}