{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T11:00:41.025","vulnerabilities":[{"cve":{"id":"CVE-2024-50162","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-11-07T10:15:07.553","lastModified":"2025-11-03T23:16:56.970","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: devmap: provide rxq after redirect\n\nrxq contains a pointer to the device from where\nthe redirect happened. Currently, the BPF program\nthat was executed after a redirect via BPF_MAP_TYPE_DEVMAP*\ndoes not have it set.\n\nThis is particularly bad since accessing ingress_ifindex, e.g.\n\nSEC(\"xdp\")\nint prog(struct xdp_md *pkt)\n{\n        return bpf_redirect_map(&dev_redirect_map, 0, 0);\n}\n\nSEC(\"xdp/devmap\")\nint prog_after_redirect(struct xdp_md *pkt)\n{\n        bpf_printk(\"ifindex %i\", pkt->ingress_ifindex);\n        return XDP_PASS;\n}\n\ndepends on access to rxq, so a NULL pointer gets dereferenced:\n\n<1>[  574.475170] BUG: kernel NULL pointer dereference, address: 0000000000000000\n<1>[  574.475188] #PF: supervisor read access in kernel mode\n<1>[  574.475194] #PF: error_code(0x0000) - not-present page\n<6>[  574.475199] PGD 0 P4D 0\n<4>[  574.475207] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n<4>[  574.475217] CPU: 4 UID: 0 PID: 217 Comm: kworker/4:1 Not tainted 6.11.0-rc5-reduced-00859-g780801200300 #23\n<4>[  574.475226] Hardware name: Intel(R) Client Systems NUC13ANHi7/NUC13ANBi7, BIOS ANRPL357.0026.2023.0314.1458 03/14/2023\n<4>[  574.475231] Workqueue: mld mld_ifc_work\n<4>[  574.475247] RIP: 0010:bpf_prog_5e13354d9cf5018a_prog_after_redirect+0x17/0x3c\n<4>[  574.475257] Code: cc cc cc cc cc cc cc 80 00 00 00 cc cc cc cc cc cc cc cc f3 0f 1e fa 0f 1f 44 00 00 66 90 55 48 89 e5 f3 0f 1e fa 48 8b 57 20 <48> 8b 52 00 8b 92 e0 00 00 00 48 bf f8 a6 d5 c4 5d a0 ff ff be 0b\n<4>[  574.475263] RSP: 0018:ffffa62440280c98 EFLAGS: 00010206\n<4>[  574.475269] RAX: ffffa62440280cd8 RBX: 0000000000000001 RCX: 0000000000000000\n<4>[  574.475274] RDX: 0000000000000000 RSI: ffffa62440549048 RDI: ffffa62440280ce0\n<4>[  574.475278] RBP: ffffa62440280c98 R08: 0000000000000002 R09: 0000000000000001\n<4>[  574.475281] R10: ffffa05dc8b98000 R11: ffffa05f577fca40 R12: ffffa05dcab24000\n<4>[  574.475285] R13: ffffa62440280ce0 R14: ffffa62440549048 R15: ffffa62440549000\n<4>[  574.475289] FS:  0000000000000000(0000) GS:ffffa05f4f700000(0000) knlGS:0000000000000000\n<4>[  574.475294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4>[  574.475298] CR2: 0000000000000000 CR3: 000000025522e000 CR4: 0000000000f50ef0\n<4>[  574.475303] PKRU: 55555554\n<4>[  574.475306] Call Trace:\n<4>[  574.475313]  <IRQ>\n<4>[  574.475318]  ? __die+0x23/0x70\n<4>[  574.475329]  ? page_fault_oops+0x180/0x4c0\n<4>[  574.475339]  ? skb_pp_cow_data+0x34c/0x490\n<4>[  574.475346]  ? kmem_cache_free+0x257/0x280\n<4>[  574.475357]  ? exc_page_fault+0x67/0x150\n<4>[  574.475368]  ? asm_exc_page_fault+0x26/0x30\n<4>[  574.475381]  ? bpf_prog_5e13354d9cf5018a_prog_after_redirect+0x17/0x3c\n<4>[  574.475386]  bq_xmit_all+0x158/0x420\n<4>[  574.475397]  __dev_flush+0x30/0x90\n<4>[  574.475407]  veth_poll+0x216/0x250 [veth]\n<4>[  574.475421]  __napi_poll+0x28/0x1c0\n<4>[  574.475430]  net_rx_action+0x32d/0x3a0\n<4>[  574.475441]  handle_softirqs+0xcb/0x2c0\n<4>[  574.475451]  do_softirq+0x40/0x60\n<4>[  574.475458]  </IRQ>\n<4>[  574.475461]  <TASK>\n<4>[  574.475464]  __local_bh_enable_ip+0x66/0x70\n<4>[  574.475471]  __dev_queue_xmit+0x268/0xe40\n<4>[  574.475480]  ? selinux_ip_postroute+0x213/0x420\n<4>[  574.475491]  ? alloc_skb_with_frags+0x4a/0x1d0\n<4>[  574.475502]  ip6_finish_output2+0x2be/0x640\n<4>[  574.475512]  ? nf_hook_slow+0x42/0xf0\n<4>[  574.475521]  ip6_finish_output+0x194/0x300\n<4>[  574.475529]  ? __pfx_ip6_finish_output+0x10/0x10\n<4>[  574.475538]  mld_sendpack+0x17c/0x240\n<4>[  574.475548]  mld_ifc_work+0x192/0x410\n<4>[  574.475557]  process_one_work+0x15d/0x380\n<4>[  574.475566]  worker_thread+0x29d/0x3a0\n<4>[  574.475573]  ? __pfx_worker_thread+0x10/0x10\n<4>[  574.475580]  ? __pfx_worker_thread+0x10/0x10\n<4>[  574.475587]  kthread+0xcd/0x100\n<4>[  574.475597]  ? __pfx_kthread+0x10/0x10\n<4>[  574.475606]  ret_from_fork+0x31/0x50\n<4>[  574.475615]  ? __pfx_kthread+0x10/0x10\n<4>[  574.475623]  ret_from_fork_asm+0x1a/0x\n---truncated---"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: devmap: proporcionar rxq después de la redirección rxq contiene un puntero al dispositivo desde donde se produjo la redirección. Actualmente, el programa BPF que se ejecutó después de una redirección a través de BPF_MAP_TYPE_DEVMAP* no lo tiene configurado. Esto es particularmente malo ya que se accede a ingress_ifindex, p. ej. SEC(\"xdp\") int prog(struct xdp_md *pkt) { return bpf_redirect_map(&amp;dev_redirect_map, 0, 0); } SEC(\"xdp/devmap\") int prog_after_redirect(struct xdp_md *pkt) { bpf_printk(\"ifindex %i\", pkt-&gt;ingress_ifindex); return XDP_PASS; } depende del acceso a rxq, por lo que un puntero NULL se desreferencia: &lt;1&gt;[ 574.475170] ERROR: desreferencia de puntero NULL del núcleo, dirección: 0000000000000000 &lt;1&gt;[ 574.475188] #PF: acceso de lectura del supervisor en modo núcleo &lt;1&gt;[ 574.475194] #PF: error_code(0x0000) - página no presente &lt;6&gt;[ 574.475199] PGD 0 P4D 0 &lt;4&gt;[ 574.475207] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI &lt;4&gt;[ 574.475217] CPU: 4 UID: 0 PID: 217 Comm: kworker/4:1 No contaminado 6.11.0-rc5-reduced-00859-g780801200300 #23 &lt;4&gt;[ 574.475226] Nombre del hardware: Intel(R) Client Systems NUC13ANHi7/NUC13ANBi7, BIOS ANRPL357.0026.2023.0314.1458 14/03/2023 &lt;4&gt;[ 574.475231] Cola de trabajo: mld mld_ifc_work &lt;4&gt;[ 574.475247] RIP: 0010:bpf_prog_5e13354d9cf5018a_prog_after_redirect+0x17/0x3c &lt;4&gt;[ 574.475257] Código: cc cc cc cc cc cc cc 80 00 00 00 cc cc cc cc cc cc cc cc f3 0f 1e fa 0f 1f 44 00 00 66 90 55 48 89 e5 f3 0f 1e fa 48 8b 57 20 &lt;48&gt; 8b 52 00 8b 92 e0 00 00 00 48 bf f8 a6 d5 c4 5d a0 ff ff be 0b &lt;4&gt;[ 574.475263] RSP: 0018:ffffa62440280c98 EFLAGS: 00010206 &lt;4&gt;[ 574.475269] RAX: ffffa62440280cd8 RBX: 00000000000000001 RCX: 0000000000000000 &lt;4&gt;[ 574.475274] RDX: 0000000000000000 RSI: ffffa62440549048 RDI: ffffa62440280ce0 &lt;4&gt;[ 574.475278] RBP: ffffa62440280c98 R08: 0000000000000002 R09: 0000000000000001 &lt;4&gt;[ 574.475281] R10: ffffa05dc8b98000 R11: ffffa05f577fca40 R12: ffffa05dcab24000 &lt;4&gt;[ 574.475285] R13: ffffa62440280ce0 R14: ffffa62440549048 R15: ffffa62440549000 &lt;4&gt;[ 574.475289] FS: 000000000000000(0000) GS:ffffa05f4f700000(0000) knlGS:0000000000000000 &lt;4&gt;[ 574.475294] CS: 0010 DS: 0000 ES: 0000 CR0: 000000080050033 &lt;4&gt;[ 574.475298] CR2: 0000000000000000 CR3: 000000025522e000 CR4: 0000000000f50ef0 &lt;4&gt;[ 574.475303] PKRU: 55555554 &lt;4&gt;[ 574.475306] Rastreo de llamadas: &lt;4&gt;[ 574.475313]  &lt;4&gt;[ 574.475318] ? __die+0x23/0x70 &lt;4&gt;[ 574.475329] ? page_fault_oops+0x180/0x4c0 &lt;4&gt;[ 574.475339] ? asm_exc_page_fault+0x26/0x30 &lt;4&gt;[ 574.475381] ? bpf_prog_5e13354d9cf5018a_prog_after_redirect+0x17/0x3c &lt;4&gt;[ 574.475386] bq_xmit_all+0x158/0x420 &lt;4&gt;[ 574.475397] __dev_flush+0x30/0x90 &lt;4&gt;[ 574.475407] veth_poll+0x216/0x250 [veth] &lt;4&gt;[ 574.475421] __napi_poll+0x28/0x1c0 &lt;4&gt;[ 574.475430] net_rx_action+0x32d/0x3a0 &lt;4&gt;[ 574.475441] selinux_ip_postroute+0x213/0x420 &lt;4&gt;[ 574.475491] ? nf_hook_slow+0x42/0xf0 &lt;4&gt;[ 574.475521] ip6_finish_output+0x194/0x300 &lt;4&gt;[ 574.475529] ? __pfx_ip6_finish_output+0x10/0x10 &lt;4&gt;[ 574.475538] mld_sendpack+0x17c/0x240 &lt;4&gt;[ 574.475548] mld_ifc_work+0x192/0x410 &lt;4&gt;[ 574.475557] proceso_uno_trabajo+0x15d/0x380 &lt;4&gt;[ 574.475566] subproceso_trabajador+0x29d/0x3a0 &lt;4&gt;[ 574.475573] ? __pfx_worker_thread+0x10/0x10 &lt;4&gt;[ 574.475580] ? __pfx_worker_thread+0x10/0x10 &lt;4&gt;[ 574.475587] kthread+0xcd/0x100 &lt;4&gt;[ 574.475597] ? __pfx_kthread+0x10/0x10 &lt;4&gt;[ 574.475606] ret_from_fork+0x31/0x50 &lt;4&gt;[ 574.475615] ? __pfx_kthread+0x10/0x10 &lt;4&gt;[ 574.475623] ret_from_fork_asm+0x1a/0x ---truncado---"}],"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:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"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":"5.14","versionEndExcluding":"5.15.170","matchCriteriaId":"53E8194F-DD7E-4112-80DD-3E7EF9172D6D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.115","matchCriteriaId":"C08A77A6-E42E-4EFD-B5A1-2BF6CBBB42AE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.59","matchCriteriaId":"5D15CA59-D15C-4ACD-8B03-A072DEAD2081"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.11.6","matchCriteriaId":"E4486B12-007B-4794-9857-F07145637AA1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*","matchCriteriaId":"7F361E1D-580F-4A2D-A509-7615F73167A1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*","matchCriteriaId":"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*","matchCriteriaId":"3C95E234-D335-4B6C-96BF-E2CEBD8654ED"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/49454f09936a9a96edfb047156889879cb4001eb","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9167d1c274a336e4763eeb3f3f9cb763c55df5aa","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a778fbe087c19f4ece5f5fc14173328f070c3803","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/ca9984c5f0ab3690d98b13937b2485a978c8dd73","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/fe068afb868660fe683a8391c6c17ecbe2254922","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}