CVE-2024-50257 (GCVE-0-2024-50257)

Vulnerability from cvelistv5 – Published: 2024-11-09 10:15 – Updated: 2026-05-11 20:48
VLAI
Title
netfilter: Fix use-after-free in get_info()
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: Fix use-after-free in get_info() ip6table_nat module unload has refcnt warning for UAF. call trace is: WARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 module_put+0x6f/0x80 Modules linked in: ip6table_nat(-) CPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:module_put+0x6f/0x80 Call Trace: <TASK> get_info+0x128/0x180 do_ip6t_get_ctl+0x6a/0x430 nf_getsockopt+0x46/0x80 ipv6_getsockopt+0xb9/0x100 rawv6_getsockopt+0x42/0x190 do_sock_getsockopt+0xaa/0x180 __sys_getsockopt+0x70/0xc0 __x64_sys_getsockopt+0x20/0x30 do_syscall_64+0xa2/0x1a0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Concurrent execution of module unload and get_info() trigered the warning. The root cause is as follows: cpu0 cpu1 module_exit //mod->state = MODULE_STATE_GOING ip6table_nat_exit xt_unregister_template kfree(t) //removed from templ_list getinfo() t = xt_find_table_lock list_for_each_entry(tmpl, &xt_templates[af]...) if (strcmp(tmpl->name, name)) continue; //table not found try_module_get list_for_each_entry(t, &xt_net->tables[af]...) return t; //not get refcnt module_put(t->me) //uaf unregister_pernet_subsys //remove table from xt_net list While xt_table module was going away and has been removed from xt_templates list, we couldnt get refcnt of xt_table->me. Check module in xt_net->tables list re-traversal to fix it.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 , < ba22ea01348384df19cc1fabc7964be6e7189749 (git)
Affected: fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 , < cb7c388b5967946f097afdb759b7c860305f2d96 (git)
Affected: fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 , < 6a1f088f9807f5166f58902d26246d0b88da03a8 (git)
Affected: fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 , < bab3bb35c03b263c486833d50d50c081d9e9832b (git)
Affected: fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 , < f48d258f0ac540f00fa617dac496c4c18b5dc2fa (git)
Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.171 , ≤ 5.15.* (semver)
Unaffected: 6.1.116 , ≤ 6.1.* (semver)
Unaffected: 6.6.60 , ≤ 6.6.* (semver)
Unaffected: 6.11.7 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: Fix use-after-free in get_info()\\n\\nip6table_nat module unload has refcnt warning for UAF. call trace is:\\n\\nWARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 module_put+0x6f/0x80\\nModules linked in: ip6table_nat(-)\\nCPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996),\\nBIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:module_put+0x6f/0x80\\nCall Trace:\\n \u003cTASK\u003e\\n get_info+0x128/0x180\\n do_ip6t_get_ctl+0x6a/0x430\\n nf_getsockopt+0x46/0x80\\n ipv6_getsockopt+0xb9/0x100\\n rawv6_getsockopt+0x42/0x190\\n do_sock_getsockopt+0xaa/0x180\\n __sys_getsockopt+0x70/0xc0\\n __x64_sys_getsockopt+0x20/0x30\\n do_syscall_64+0xa2/0x1a0\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nConcurrent execution of module unload and get_info() trigered the warning.\\nThe root cause is as follows:\\n\\ncpu0\\t\\t\\t\\t      cpu1\\nmodule_exit\\n//mod-\u003estate = MODULE_STATE_GOING\\n  ip6table_nat_exit\\n    xt_unregister_template\\n\\tkfree(t)\\n\\t//removed from templ_list\\n\\t\\t\\t\\t      getinfo()\\n\\t\\t\\t\\t\\t  t = xt_find_table_lock\\n\\t\\t\\t\\t\\t\\tlist_for_each_entry(tmpl, \u0026xt_templates[af]...)\\n\\t\\t\\t\\t\\t\\t\\tif (strcmp(tmpl-\u003ename, name))\\n\\t\\t\\t\\t\\t\\t\\t\\tcontinue;  //table not found\\n\\t\\t\\t\\t\\t\\t\\ttry_module_get\\n\\t\\t\\t\\t\\t\\tlist_for_each_entry(t, \u0026xt_net-\u003etables[af]...)\\n\\t\\t\\t\\t\\t\\t\\treturn t;  //not get refcnt\\n\\t\\t\\t\\t\\t  module_put(t-\u003eme) //uaf\\n    unregister_pernet_subsys\\n    //remove table from xt_net list\\n\\nWhile xt_table module was going away and has been removed from\\nxt_templates list, we couldnt get refcnt of xt_table-\u003eme. Check\\nmodule in xt_net-\u003etables list re-traversal to fix it.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: Se corrige el problema use-after-free en la descarga del m\\u00f3dulo ip6table_nat get_info() que tiene una advertencia refcnt para UAF. El seguimiento de llamadas es: ADVERTENCIA: CPU: 1 PID: 379 en kernel/module/main.c:853 module_put+0x6f/0x80 M\\u00f3dulos vinculados en: ip6table_nat(-) CPU: 1 UID: 0 PID: 379 Comm: ip6tables No contaminado 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:module_put+0x6f/0x80 Seguimiento de llamadas:  get_info+0x128/0x180 La ejecuci\\u00f3n simult\\u00e1nea de la descarga del m\\u00f3dulo y get_info() activ\\u00f3 la advertencia. La causa ra\\u00edz es la siguiente: cpu0 cpu1 module_exit //mod-\u0026gt;state = MODULE_STATE_GOING ip6table_nat_exit xt_unregister_template kfree(t) //eliminado de la lista de plantillas getinfo() t = xt_find_table_lock list_for_each_entry(tmpl, \u0026amp;xt_templates[af]...) if (strcmp(tmpl-\u0026gt;name, name)) continue; //tabla no encontrada try_module_get list_for_each_entry(t, \u0026amp;xt_net-\u0026gt;tables[af]...) return t; //no obtener refcnt module_put(t-\u0026gt;me) //uaf unregister_pernet_subsys //eliminar tabla de la lista xt_net Mientras el m\\u00f3dulo xt_table desaparec\\u00eda y se eliminaba de la lista xt_templates, no pudimos obtener refcnt de xt_table-\u0026gt;me. Verifique el m\\u00f3dulo en el recorrido de lista xt_net-\u0026gt;tables para solucionarlo.\"}]",
      "id": "CVE-2024-50257",
      "lastModified": "2024-12-11T15:15:13.913",
      "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}, {\"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: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}]}",
      "published": "2024-11-09T11:15:11.340",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/6a1f088f9807f5166f58902d26246d0b88da03a8\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/ba22ea01348384df19cc1fabc7964be6e7189749\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/bab3bb35c03b263c486833d50d50c081d9e9832b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/cb7c388b5967946f097afdb759b7c860305f2d96\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/f48d258f0ac540f00fa617dac496c4c18b5dc2fa\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}, {\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50257\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:11.340\",\"lastModified\":\"2026-06-17T08:04:01.777\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: Fix use-after-free in get_info()\\n\\nip6table_nat module unload has refcnt warning for UAF. call trace is:\\n\\nWARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 module_put+0x6f/0x80\\nModules linked in: ip6table_nat(-)\\nCPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996),\\nBIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:module_put+0x6f/0x80\\nCall Trace:\\n \u003cTASK\u003e\\n get_info+0x128/0x180\\n do_ip6t_get_ctl+0x6a/0x430\\n nf_getsockopt+0x46/0x80\\n ipv6_getsockopt+0xb9/0x100\\n rawv6_getsockopt+0x42/0x190\\n do_sock_getsockopt+0xaa/0x180\\n __sys_getsockopt+0x70/0xc0\\n __x64_sys_getsockopt+0x20/0x30\\n do_syscall_64+0xa2/0x1a0\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nConcurrent execution of module unload and get_info() trigered the warning.\\nThe root cause is as follows:\\n\\ncpu0\\t\\t\\t\\t      cpu1\\nmodule_exit\\n//mod-\u003estate = MODULE_STATE_GOING\\n  ip6table_nat_exit\\n    xt_unregister_template\\n\\tkfree(t)\\n\\t//removed from templ_list\\n\\t\\t\\t\\t      getinfo()\\n\\t\\t\\t\\t\\t  t = xt_find_table_lock\\n\\t\\t\\t\\t\\t\\tlist_for_each_entry(tmpl, \u0026xt_templates[af]...)\\n\\t\\t\\t\\t\\t\\t\\tif (strcmp(tmpl-\u003ename, name))\\n\\t\\t\\t\\t\\t\\t\\t\\tcontinue;  //table not found\\n\\t\\t\\t\\t\\t\\t\\ttry_module_get\\n\\t\\t\\t\\t\\t\\tlist_for_each_entry(t, \u0026xt_net-\u003etables[af]...)\\n\\t\\t\\t\\t\\t\\t\\treturn t;  //not get refcnt\\n\\t\\t\\t\\t\\t  module_put(t-\u003eme) //uaf\\n    unregister_pernet_subsys\\n    //remove table from xt_net list\\n\\nWhile xt_table module was going away and has been removed from\\nxt_templates list, we couldnt get refcnt of xt_table-\u003eme. Check\\nmodule in xt_net-\u003etables list re-traversal to fix it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: Se corrige el problema use-after-free en la descarga del m\u00f3dulo ip6table_nat get_info() que tiene una advertencia refcnt para UAF. El seguimiento de llamadas es: ADVERTENCIA: CPU: 1 PID: 379 en kernel/module/main.c:853 module_put+0x6f/0x80 M\u00f3dulos vinculados en: ip6table_nat(-) CPU: 1 UID: 0 PID: 379 Comm: ip6tables No contaminado 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:module_put+0x6f/0x80 Seguimiento de llamadas:  get_info+0x128/0x180 La ejecuci\u00f3n simult\u00e1nea de la descarga del m\u00f3dulo y get_info() activ\u00f3 la advertencia. La causa ra\u00edz es la siguiente: cpu0 cpu1 module_exit //mod-\u0026gt;state = MODULE_STATE_GOING ip6table_nat_exit xt_unregister_template kfree(t) //eliminado de la lista de plantillas getinfo() t = xt_find_table_lock list_for_each_entry(tmpl, \u0026amp;xt_templates[af]...) if (strcmp(tmpl-\u0026gt;name, name)) continue; //tabla no encontrada try_module_get list_for_each_entry(t, \u0026amp;xt_net-\u0026gt;tables[af]...) return t; //no obtener refcnt module_put(t-\u0026gt;me) //uaf unregister_pernet_subsys //eliminar tabla de la lista xt_net Mientras el m\u00f3dulo xt_table desaparec\u00eda y se eliminaba de la lista xt_templates, no pudimos obtener refcnt de xt_table-\u0026gt;me. Verifique el m\u00f3dulo en el recorrido de lista xt_net-\u0026gt;tables para solucionarlo.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/netfilter/x_tables.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\",\"lessThan\":\"ba22ea01348384df19cc1fabc7964be6e7189749\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\",\"lessThan\":\"cb7c388b5967946f097afdb759b7c860305f2d96\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\",\"lessThan\":\"6a1f088f9807f5166f58902d26246d0b88da03a8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\",\"lessThan\":\"bab3bb35c03b263c486833d50d50c081d9e9832b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\",\"lessThan\":\"f48d258f0ac540f00fa617dac496c4c18b5dc2fa\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/netfilter/x_tables.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.171\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.116\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.60\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.7\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"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},{\"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: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}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-12-11T14:25:40.458302Z\",\"id\":\"CVE-2024-50257\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.15\",\"versionEndExcluding\":\"5.15.171\",\"matchCriteriaId\":\"27CA367E-22E6-43BC-9062-CFFE67D00C79\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.116\",\"matchCriteriaId\":\"43EFDC15-E4D4-4F1E-B70D-62F0854BFDF3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.60\",\"matchCriteriaId\":\"75088E5E-2400-4D20-915F-7A65C55D9CCD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.11.7\",\"matchCriteriaId\":\"E96F53A4-5E87-4A70-BD9A-BC327828D57F\"},{\"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\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6a1f088f9807f5166f58902d26246d0b88da03a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ba22ea01348384df19cc1fabc7964be6e7189749\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bab3bb35c03b263c486833d50d50c081d9e9832b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cb7c388b5967946f097afdb759b7c860305f2d96\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f48d258f0ac540f00fa617dac496c4c18b5dc2fa\",\"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\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:20:44+00:00",
      "cve": "CVE-2024-50257",
      "id": "CVE-2024-50257",
      "initial_release_date": "2024-11-09T00:00:00+00:00",
      "product_status:known_affected": "42",
      "product_status:known_not_affected": "156",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: Fix use-after-free in get_info()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-50257.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-07-25T01:25:33Z",
      "cve": "CVE-2024-50257",
      "id": "CVE-2024-50257",
      "initial_release_date": "2024-11-10T03:49:03Z",
      "product_status:known_affected": "398",
      "product_status:known_not_affected": "369",
      "product_status:recommended": "334",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-50257",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-50257.json",
      "version": "63"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-50257\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-12-11T14:25:40.458302Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-12-11T14:25:41.600Z\"}}], \"cna\": {\"title\": \"netfilter: Fix use-after-free in get_info()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\", \"lessThan\": \"ba22ea01348384df19cc1fabc7964be6e7189749\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\", \"lessThan\": \"cb7c388b5967946f097afdb759b7c860305f2d96\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\", \"lessThan\": \"6a1f088f9807f5166f58902d26246d0b88da03a8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\", \"lessThan\": \"bab3bb35c03b263c486833d50d50c081d9e9832b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"fdacd57c79b79a03c7ca88f706ad9fb7b46831c1\", \"lessThan\": \"f48d258f0ac540f00fa617dac496c4c18b5dc2fa\", \"versionType\": \"git\"}], \"programFiles\": [\"net/netfilter/x_tables.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.171\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.116\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.60\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/netfilter/x_tables.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/ba22ea01348384df19cc1fabc7964be6e7189749\"}, {\"url\": \"https://git.kernel.org/stable/c/cb7c388b5967946f097afdb759b7c860305f2d96\"}, {\"url\": \"https://git.kernel.org/stable/c/6a1f088f9807f5166f58902d26246d0b88da03a8\"}, {\"url\": \"https://git.kernel.org/stable/c/bab3bb35c03b263c486833d50d50c081d9e9832b\"}, {\"url\": \"https://git.kernel.org/stable/c/f48d258f0ac540f00fa617dac496c4c18b5dc2fa\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: Fix use-after-free in get_info()\\n\\nip6table_nat module unload has refcnt warning for UAF. call trace is:\\n\\nWARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 module_put+0x6f/0x80\\nModules linked in: ip6table_nat(-)\\nCPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996),\\nBIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:module_put+0x6f/0x80\\nCall Trace:\\n \u003cTASK\u003e\\n get_info+0x128/0x180\\n do_ip6t_get_ctl+0x6a/0x430\\n nf_getsockopt+0x46/0x80\\n ipv6_getsockopt+0xb9/0x100\\n rawv6_getsockopt+0x42/0x190\\n do_sock_getsockopt+0xaa/0x180\\n __sys_getsockopt+0x70/0xc0\\n __x64_sys_getsockopt+0x20/0x30\\n do_syscall_64+0xa2/0x1a0\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\n\\nConcurrent execution of module unload and get_info() trigered the warning.\\nThe root cause is as follows:\\n\\ncpu0\\t\\t\\t\\t      cpu1\\nmodule_exit\\n//mod-\u003estate = MODULE_STATE_GOING\\n  ip6table_nat_exit\\n    xt_unregister_template\\n\\tkfree(t)\\n\\t//removed from templ_list\\n\\t\\t\\t\\t      getinfo()\\n\\t\\t\\t\\t\\t  t = xt_find_table_lock\\n\\t\\t\\t\\t\\t\\tlist_for_each_entry(tmpl, \u0026xt_templates[af]...)\\n\\t\\t\\t\\t\\t\\t\\tif (strcmp(tmpl-\u003ename, name))\\n\\t\\t\\t\\t\\t\\t\\t\\tcontinue;  //table not found\\n\\t\\t\\t\\t\\t\\t\\ttry_module_get\\n\\t\\t\\t\\t\\t\\tlist_for_each_entry(t, \u0026xt_net-\u003etables[af]...)\\n\\t\\t\\t\\t\\t\\t\\treturn t;  //not get refcnt\\n\\t\\t\\t\\t\\t  module_put(t-\u003eme) //uaf\\n    unregister_pernet_subsys\\n    //remove table from xt_net list\\n\\nWhile xt_table module was going away and has been removed from\\nxt_templates list, we couldnt get refcnt of xt_table-\u003eme. Check\\nmodule in xt_net-\u003etables list re-traversal to fix it.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.171\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.116\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.60\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.7\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"5.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:50:04.187Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50257\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:50:04.187Z\", \"dateReserved\": \"2024-10-21T19:36:19.980Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-09T10:15:10.373Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.