{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T22:26:09.021","vulnerabilities":[{"cve":{"id":"CVE-2023-52906","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-08-21T07:15:06.663","lastModified":"2024-09-13T13:21:31.360","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_mpls: Fix warning during failed attribute validation\n\nThe 'TCA_MPLS_LABEL' attribute is of 'NLA_U32' type, but has a\nvalidation type of 'NLA_VALIDATE_FUNCTION'. This is an invalid\ncombination according to the comment above 'struct nla_policy':\n\n\"\nMeaning of `validate' field, use via NLA_POLICY_VALIDATE_FN:\n   NLA_BINARY           Validation function called for the attribute.\n   All other            Unused - but note that it's a union\n\"\n\nThis can trigger the warning [1] in nla_get_range_unsigned() when\nvalidation of the attribute fails. Despite being of 'NLA_U32' type, the\nassociated 'min'/'max' fields in the policy are negative as they are\naliased by the 'validate' field.\n\nFix by changing the attribute type to 'NLA_BINARY' which is consistent\nwith the above comment and all other users of NLA_POLICY_VALIDATE_FN().\nAs a result, move the length validation to the validation function.\n\nNo regressions in MPLS tests:\n\n # ./tdc.py -f tc-tests/actions/mpls.json\n [...]\n # echo $?\n 0\n\n[1]\nWARNING: CPU: 0 PID: 17743 at lib/nlattr.c:118\nnla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117\nModules linked in:\nCPU: 0 PID: 17743 Comm: syz-executor.0 Not tainted 6.1.0-rc8 #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\nrel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014\nRIP: 0010:nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117\n[...]\nCall Trace:\n <TASK>\n __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310\n netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411\n netlink_ack_tlv_fill net/netlink/af_netlink.c:2454 [inline]\n netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506\n netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546\n rtnetlink_rcv+0x18/0x20 net/core/rtnetlink.c:6109\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg net/socket.c:734 [inline]\n ____sys_sendmsg+0x38f/0x500 net/socket.c:2482\n ___sys_sendmsg net/socket.c:2536 [inline]\n __sys_sendmsg+0x197/0x230 net/socket.c:2565\n __do_sys_sendmsg net/socket.c:2574 [inline]\n __se_sys_sendmsg net/socket.c:2572 [inline]\n __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/sched: act_mpls: Advertencia de corrección durante la validación fallida del atributo El atributo 'TCA_MPLS_LABEL' es de tipo 'NLA_U32', pero tiene un tipo de validación de 'NLA_VALIDATE_FUNCTION'. Esta es una combinación no válida según el comentario anterior 'struct nla_policy': \" Significado del campo `validar', utilícelo a través de NLA_POLICY_VALIDATE_FN: NLA_BINARY Función de validación llamada para el atributo. Todos los demás no utilizados, pero tenga en cuenta que es una unión \" Esto puede desencadenar la advertencia [1] en nla_get_range_unsigned() cuando falla la validación del atributo. A pesar de ser del tipo 'NLA_U32', los campos 'min'/'max' asociados en la política son negativos ya que tienen un alias del campo 'validate'. Para solucionarlo, cambie el tipo de atributo a 'NLA_BINARY', que es coherente con el comentario anterior y con todos los demás usuarios de NLA_POLICY_VALIDATE_FN(). Como resultado, mueva la validación de longitud a la función de validación. No hay regresiones en las pruebas MPLS: # ./tdc.py -f tc-tests/actions/mpls.json [...] # echo $? 0 [1] ADVERTENCIA: CPU: 0 PID: 17743 en lib/nlattr.c:118 nla_get_range_unsigned+0x1d8/0x1e0 lib/nlattr.c:117 Módulos vinculados en: CPU: 0 PID: 17743 Comm: syz-executor.0 No tainted 6.1.0-rc8 #3 Nombre del hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS rel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 01/04/2014 RIP: 0010:nla_get_range_unsigned+0x1d8 /0x1e0 lib/nlattr.c:117 [...] Seguimiento de llamadas:  __netlink_policy_dump_write_attr+0x23d/0x990 net/netlink/policy.c:310 netlink_policy_dump_write_attr+0x22/0x30 net/netlink/policy.c:411 netlink_ack_tlv_fill net /netlink/af_netlink.c:2454 [en línea] netlink_ack+0x546/0x760 net/netlink/af_netlink.c:2506 netlink_rcv_skb+0x1b7/0x240 net/netlink/af_netlink.c:2546 rtnetlink_rcv+0x18/0x20 net/core/rtnetlink. c:6109 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [en línea] netlink_unicast+0x5e9/0x6b0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x739/0x860 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c :714 [en línea] sock_sendmsg net/socket.c:734 [en línea] ____sys_sendmsg+0x38f/0x500 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [en línea] __sys_sendmsg+0x197/0x230 net/socket.c: 2565 __do_sys_sendmsg net/socket.c:2574 [en línea] __se_sys_sendmsg net/socket.c:2572 [en línea] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2572 do_syscall_x64 arch/x86/entry/common.c:50 [en línea] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x63/0xcd"}],"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:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.4.229","matchCriteriaId":"6B9D0314-C8F6-4538-867F-2873DF2287F2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.164","matchCriteriaId":"CA742E66-32D2-459E-AB19-171C4DB3B1F4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.89","matchCriteriaId":"E706841F-E788-4316-9B05-DA8EB60CE6B3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.7","matchCriteriaId":"9275C81F-AE96-4CDB-AD20-7DBD36E5D909"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*","matchCriteriaId":"FF501633-2F44-4913-A8EE-B021929F49F6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*","matchCriteriaId":"2BDA597B-CAC1-4DF0-86F0-42E142C654E9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*","matchCriteriaId":"725C78C9-12CE-406F-ABE8-0813A01D66E8"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2b157c3c5d6b8ddca48d53c9e662032f65af8d61","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/453277feb41c2235cf2c0de9209eef962c401457","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8a97b544b98e44f596219ebb290fd2ba2fd5d644","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9e17f99220d111ea031b44153fdfe364b0024ff2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9e2c38827cdc6fdd3bb375c8607fc04d289756f9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}