CVE-2022-49378

{"id": "CVE-2022-49378", "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}]}, "published": "2025-02-26T07:01:14.450", "references": [{"url": "https://git.kernel.org/stable/c/2e102b53f8a778f872dc137f4c7ac548705817aa", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5567d69b95b9c07e1c56f15cf0301251d12e5f97", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8f81a4113e1e574d2cbde4f2cd599380a9189c0f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/913d45f02d346ce41c4aad057eaf53a8ed449dc3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e7e8d5e25dc762b70f9c88ec6b7d451d0816eead", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix considering that all channels have TX queues\n\nNormally, all channels have RX and TX queues, but this is not true if\nmodparam efx_separate_tx_channels=1 is used. In that cases, some\nchannels only have RX queues and others only TX queues (or more\npreciselly, they have them allocated, but not initialized).\n\nFix efx_channel_has_tx_queues to return the correct value for this case\ntoo.\n\nMessages shown at probe time before the fix:\n sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0\n ------------[ cut here ]------------\n netdevice: ens6f0np0: failed to initialise TXQ -1\n WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n Call Trace:\n efx_init_tx_queue+0xaa/0xf0 [sfc]\n efx_start_channels+0x49/0x120 [sfc]\n efx_start_all+0x1f8/0x430 [sfc]\n efx_net_open+0x5a/0xe0 [sfc]\n __dev_open+0xd0/0x190\n __dev_change_flags+0x1b3/0x220\n dev_change_flags+0x21/0x60\n [...] stripped\n\nMessages shown at remove time before the fix:\n sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues\n sfc 0000:03:00.0 ens6f0np0: failed to flush queues"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sfc: correcci\u00f3n considerando que todos los canales tienen colas TX Normalmente, todos los canales tienen colas RX y TX, pero esto no es cierto si se usa el modparam efx_separate_tx_channels=1. En esos casos, algunos canales solo tienen colas RX y otros solo colas TX (o m\u00e1s precisamente, las tienen asignadas, pero no inicializadas). Arregla efx_channel_has_tx_queues para que devuelva el valor correcto para este caso tambi\u00e9n. Mensajes mostrados en el momento de la prueba antes de la correcci\u00f3n: sfc 0000:03:00.0 ens6f0np0: Fall\u00f3 el comando MC 0x82 inlen 544 rc=-22 (raw=0) arg=0 ------------[ cortar aqu\u00ed ]------------ netdevice: ens6f0np0: failed to initialise TXQ -1 WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc] [...] stripped RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc] [...] stripped Call Trace: efx_init_tx_queue+0xaa/0xf0 [sfc] efx_start_channels+0x49/0x120 [sfc] efx_start_all+0x1f8/0x430 [sfc] efx_net_open+0x5a/0xe0 [sfc] __dev_open+0xd0/0x190 __dev_change_flags+0x1b3/0x220 dev_change_flags+0x21/0x60 [...] stripped Messages shown at remove time before the fix: sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues sfc 0000:03:00.0 ens6f0np0: failed to flush queues "}], "lastModified": "2025-10-21T12:16:01.680", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3480DF40-B812-4E11-98FB-3F3CBC57F994", "versionEndExcluding": "5.10.122", "versionStartIncluding": "5.5.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC042EE3-4864-4325-BE0B-4BCDBF11AA61", "versionEndExcluding": "5.15.47", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD", "versionEndExcluding": "5.17.15", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6D643C-6D6A-4821-8A8D-B5776B8F0103", "versionEndExcluding": "5.18.4", "versionStartIncluding": "5.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.5:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE98F46A-F7D9-4609-B6A0-882E7F0D378C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.5:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C58602A-1D3D-4A07-AB88-AB5B403D3E8C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.5:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54191273-DBF7-4AF6-8039-36DFDEBF4529"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.5:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A986E40-065E-4807-B171-802B9460E47E"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.5:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "911090B3-B2FF-4DD4-A4A4-1BEA41209886"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.5:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3444D854-CE07-4D25-827A-ECF7BB58EA2D"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}