CVE-2024-58088 (GCVE-0-2024-58088)
Vulnerability from cvelistv5
Published
2025-03-12 09:41
Modified
2025-10-01 19:36
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix deadlock when freeing cgroup storage The following commit bc235cdb423a ("bpf: Prevent deadlock from recursive bpf_task_storage_[get|delete]") first introduced deadlock prevention for fentry/fexit programs attaching on bpf_task_storage helpers. That commit also employed the logic in map free path in its v6 version. Later bpf_cgrp_storage was first introduced in c4bcfb38a95e ("bpf: Implement cgroup storage available to non-cgroup-attached bpf progs") which faces the same issue as bpf_task_storage, instead of its busy counter, NULL was passed to bpf_local_storage_map_free() which opened a window to cause deadlock: <TASK> (acquiring local_storage->lock) _raw_spin_lock_irqsave+0x3d/0x50 bpf_local_storage_update+0xd1/0x460 bpf_cgrp_storage_get+0x109/0x130 bpf_prog_a4d4a370ba857314_cgrp_ptr+0x139/0x170 ? __bpf_prog_enter_recur+0x16/0x80 bpf_trampoline_6442485186+0x43/0xa4 cgroup_storage_ptr+0x9/0x20 (holding local_storage->lock) bpf_selem_unlink_storage_nolock.constprop.0+0x135/0x160 bpf_selem_unlink_storage+0x6f/0x110 bpf_local_storage_map_free+0xa2/0x110 bpf_map_free_deferred+0x5b/0x90 process_one_work+0x17c/0x390 worker_thread+0x251/0x360 kthread+0xd2/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30 </TASK> Progs: - A: SEC("fentry/cgroup_storage_ptr") - cgid (BPF_MAP_TYPE_HASH) Record the id of the cgroup the current task belonging to in this hash map, using the address of the cgroup as the map key. - cgrpa (BPF_MAP_TYPE_CGRP_STORAGE) If current task is a kworker, lookup the above hash map using function parameter @owner as the key to get its corresponding cgroup id which is then used to get a trusted pointer to the cgroup through bpf_cgroup_from_id(). This trusted pointer can then be passed to bpf_cgrp_storage_get() to finally trigger the deadlock issue. - B: SEC("tp_btf/sys_enter") - cgrpb (BPF_MAP_TYPE_CGRP_STORAGE) The only purpose of this prog is to fill Prog A's hash map by calling bpf_cgrp_storage_get() for as many userspace tasks as possible. Steps to reproduce: - Run A; - while (true) { Run B; Destroy B; } Fix this issue by passing its busy counter to the free procedure so it can be properly incremented before storage/smap locking.
References
Impacted products
Vendor Product Version
Linux Linux Version: c4bcfb38a95edb1021a53f2d0356a78120ecfbe4
Version: c4bcfb38a95edb1021a53f2d0356a78120ecfbe4
Version: c4bcfb38a95edb1021a53f2d0356a78120ecfbe4
Version: c4bcfb38a95edb1021a53f2d0356a78120ecfbe4
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{
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              "attackComplexity": "LOW",
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              "userInteraction": "NONE",
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              "content": {
                "id": "CVE-2024-58088",
                "options": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix deadlock when freeing cgroup storage\n\nThe following commit\nbc235cdb423a (\"bpf: Prevent deadlock from recursive bpf_task_storage_[get|delete]\")\nfirst introduced deadlock prevention for fentry/fexit programs attaching\non bpf_task_storage helpers. That commit also employed the logic in map\nfree path in its v6 version.\n\nLater bpf_cgrp_storage was first introduced in\nc4bcfb38a95e (\"bpf: Implement cgroup storage available to non-cgroup-attached bpf progs\")\nwhich faces the same issue as bpf_task_storage, instead of its busy\ncounter, NULL was passed to bpf_local_storage_map_free() which opened\na window to cause deadlock:\n\n\t\u003cTASK\u003e\n\t\t(acquiring local_storage-\u003elock)\n\t_raw_spin_lock_irqsave+0x3d/0x50\n\tbpf_local_storage_update+0xd1/0x460\n\tbpf_cgrp_storage_get+0x109/0x130\n\tbpf_prog_a4d4a370ba857314_cgrp_ptr+0x139/0x170\n\t? __bpf_prog_enter_recur+0x16/0x80\n\tbpf_trampoline_6442485186+0x43/0xa4\n\tcgroup_storage_ptr+0x9/0x20\n\t\t(holding local_storage-\u003elock)\n\tbpf_selem_unlink_storage_nolock.constprop.0+0x135/0x160\n\tbpf_selem_unlink_storage+0x6f/0x110\n\tbpf_local_storage_map_free+0xa2/0x110\n\tbpf_map_free_deferred+0x5b/0x90\n\tprocess_one_work+0x17c/0x390\n\tworker_thread+0x251/0x360\n\tkthread+0xd2/0x100\n\tret_from_fork+0x34/0x50\n\tret_from_fork_asm+0x1a/0x30\n\t\u003c/TASK\u003e\n\nProgs:\n - A: SEC(\"fentry/cgroup_storage_ptr\")\n   - cgid (BPF_MAP_TYPE_HASH)\n\tRecord the id of the cgroup the current task belonging\n\tto in this hash map, using the address of the cgroup\n\tas the map key.\n   - cgrpa (BPF_MAP_TYPE_CGRP_STORAGE)\n\tIf current task is a kworker, lookup the above hash\n\tmap using function parameter @owner as the key to get\n\tits corresponding cgroup id which is then used to get\n\ta trusted pointer to the cgroup through\n\tbpf_cgroup_from_id(). This trusted pointer can then\n\tbe passed to bpf_cgrp_storage_get() to finally trigger\n\tthe deadlock issue.\n - B: SEC(\"tp_btf/sys_enter\")\n   - cgrpb (BPF_MAP_TYPE_CGRP_STORAGE)\n\tThe only purpose of this prog is to fill Prog A\u0027s\n\thash map by calling bpf_cgrp_storage_get() for as\n\tmany userspace tasks as possible.\n\nSteps to reproduce:\n - Run A;\n - while (true) { Run B; Destroy B; }\n\nFix this issue by passing its busy counter to the free procedure so\nit can be properly incremented before storage/smap locking."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T10:09:48.472Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6ecb9fa14eec5f15d97c84c36896871335f6ddfb"
        },
        {
          "url": "https://git.kernel.org/stable/c/fac674d2bd68f3479f27328626b42d1eebd11fef"
        },
        {
          "url": "https://git.kernel.org/stable/c/fcec95b4ab3e7bc6b2f36e5d59f7e24104ea87f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/c78f4afbd962f43a3989f45f3ca04300252b19b5"
        }
      ],
      "title": "bpf: Fix deadlock when freeing cgroup storage",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-58088",
    "datePublished": "2025-03-12T09:41:58.986Z",
    "dateReserved": "2025-03-06T15:52:09.187Z",
    "dateUpdated": "2025-10-01T19:36:35.008Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-58088\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-03-12T10:15:16.300\",\"lastModified\":\"2025-10-01T20:18:14.520\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Fix deadlock when freeing cgroup storage\\n\\nThe following commit\\nbc235cdb423a (\\\"bpf: Prevent deadlock from recursive bpf_task_storage_[get|delete]\\\")\\nfirst introduced deadlock prevention for fentry/fexit programs attaching\\non bpf_task_storage helpers. That commit also employed the logic in map\\nfree path in its v6 version.\\n\\nLater bpf_cgrp_storage was first introduced in\\nc4bcfb38a95e (\\\"bpf: Implement cgroup storage available to non-cgroup-attached bpf progs\\\")\\nwhich faces the same issue as bpf_task_storage, instead of its busy\\ncounter, NULL was passed to bpf_local_storage_map_free() which opened\\na window to cause deadlock:\\n\\n\\t\u003cTASK\u003e\\n\\t\\t(acquiring local_storage-\u003elock)\\n\\t_raw_spin_lock_irqsave+0x3d/0x50\\n\\tbpf_local_storage_update+0xd1/0x460\\n\\tbpf_cgrp_storage_get+0x109/0x130\\n\\tbpf_prog_a4d4a370ba857314_cgrp_ptr+0x139/0x170\\n\\t? __bpf_prog_enter_recur+0x16/0x80\\n\\tbpf_trampoline_6442485186+0x43/0xa4\\n\\tcgroup_storage_ptr+0x9/0x20\\n\\t\\t(holding local_storage-\u003elock)\\n\\tbpf_selem_unlink_storage_nolock.constprop.0+0x135/0x160\\n\\tbpf_selem_unlink_storage+0x6f/0x110\\n\\tbpf_local_storage_map_free+0xa2/0x110\\n\\tbpf_map_free_deferred+0x5b/0x90\\n\\tprocess_one_work+0x17c/0x390\\n\\tworker_thread+0x251/0x360\\n\\tkthread+0xd2/0x100\\n\\tret_from_fork+0x34/0x50\\n\\tret_from_fork_asm+0x1a/0x30\\n\\t\u003c/TASK\u003e\\n\\nProgs:\\n - A: SEC(\\\"fentry/cgroup_storage_ptr\\\")\\n   - cgid (BPF_MAP_TYPE_HASH)\\n\\tRecord the id of the cgroup the current task belonging\\n\\tto in this hash map, using the address of the cgroup\\n\\tas the map key.\\n   - cgrpa (BPF_MAP_TYPE_CGRP_STORAGE)\\n\\tIf current task is a kworker, lookup the above hash\\n\\tmap using function parameter @owner as the key to get\\n\\tits corresponding cgroup id which is then used to get\\n\\ta trusted pointer to the cgroup through\\n\\tbpf_cgroup_from_id(). This trusted pointer can then\\n\\tbe passed to bpf_cgrp_storage_get() to finally trigger\\n\\tthe deadlock issue.\\n - B: SEC(\\\"tp_btf/sys_enter\\\")\\n   - cgrpb (BPF_MAP_TYPE_CGRP_STORAGE)\\n\\tThe only purpose of this prog is to fill Prog A\u0027s\\n\\thash map by calling bpf_cgrp_storage_get() for as\\n\\tmany userspace tasks as possible.\\n\\nSteps to reproduce:\\n - Run A;\\n - while (true) { Run B; Destroy B; }\\n\\nFix this issue by passing its busy counter to the free procedure so\\nit can be properly incremented before storage/smap locking.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Correcci\u00f3n de interbloqueo al liberar almacenamiento de cgroup. El siguiente commit bc235cdb423a (\\\"bpf: Prevenir interbloqueo desde bpf_task_storage_[get|delete] recursivo\\\") introdujo por primera vez la prevenci\u00f3n de interbloqueo para programas fentry/fexit que se conectaban a los ayudantes bpf_task_storage. Este commit tambi\u00e9n emple\u00f3 la l\u00f3gica de map free path en su versi\u00f3n v6. M\u00e1s tarde, bpf_cgrp_storage se introdujo por primera vez en c4bcfb38a95e (\\\"bpf: Implementar almacenamiento cgroup disponible para programas bpf no adjuntos a cgroup\\\") que enfrenta el mismo problema que bpf_task_storage, en lugar de su contador de ocupaci\u00f3n, se pas\u00f3 NULL a bpf_local_storage_map_free() que abri\u00f3 una ventana para causar un bloqueo:  (acquiring local_storage-\u0026gt;lock) _raw_spin_lock_irqsave+0x3d/0x50 bpf_local_storage_update+0xd1/0x460 bpf_cgrp_storage_get+0x109/0x130 bpf_prog_a4d4a370ba857314_cgrp_ptr+0x139/0x170 ? __bpf_prog_enter_recur+0x16/0x80 bpf_trampoline_6442485186+0x43/0xa4 cgroup_storage_ptr+0x9/0x20 (manteniendo el bloqueo de almacenamiento local) bpf_selem_unlink_storage_nolock.constprop.0+0x135/0x160 bpf_selem_unlink_storage+0x6f/0x110 bpf_local_storage_map_free+0xa2/0x110 bpf_map_free_deferred+0x5b/0x90 process_one_work+0x17c/0x390 subproceso de trabajo+0x251/0x360 kthread+0xd2/0x100 ret_from_fork+0x34/0x50 ret_from_fork_asm+0x1a/0x30  Programas: - A: SEC(\\\"fentry/cgroup_storage_ptr\\\") - cgid (BPF_MAP_TYPE_HASH) Registra el ID del grupo de control al que pertenece la tarea actual en este mapa hash, utilizando la direcci\u00f3n del grupo de control como clave del mapa. - cgrpa (BPF_MAP_TYPE_CGRP_STORAGE) Si la tarea actual es un kworker, busca el mapa hash anterior utilizando el par\u00e1metro de funci\u00f3n @owner como clave para obtener su ID de grupo de control correspondiente, que luego se utiliza para obtener un puntero confiable al grupo de control mediante bpf_cgroup_from_id(). Este puntero confiable se puede pasar a bpf_cgrp_storage_get() para finalmente activar el problema de interbloqueo. - B: SEC(\\\"tp_btf/sys_enter\\\") - cgrpb (BPF_MAP_TYPE_CGRP_STORAGE). El \u00fanico prop\u00f3sito de este programa es llenar el mapa hash del Programa A llamando a bpf_cgrp_storage_get() para tantas tareas de espacio de usuario como sea posible. Pasos para reproducir: - Ejecutar A; - while (true) { Ejecutar B; Destruir B; }. Solucione este problema pasando su contador de ocupaci\u00f3n al procedimiento libre para que pueda incrementarse correctamente antes del bloqueo de almacenamiento/smap.\"}],\"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\":\"CWE-667\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.80\",\"matchCriteriaId\":\"A93F3655-6FAF-43B0-8541-A212998F05B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.17\",\"matchCriteriaId\":\"15370AEE-6D1C-49C3-8CB7-E889D5F92B6F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.5\",\"matchCriteriaId\":\"72E69ABB-9015-43A6-87E1-5150383CFFD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"186716B6-2B66-4BD0-852E-D48E71C0C85F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D3E781C-403A-498F-9DA9-ECEE50F41E75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"66619FB8-0AAF-4166-B2CF-67B24143261D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6ecb9fa14eec5f15d97c84c36896871335f6ddfb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c78f4afbd962f43a3989f45f3ca04300252b19b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fac674d2bd68f3479f27328626b42d1eebd11fef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fcec95b4ab3e7bc6b2f36e5d59f7e24104ea87f7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"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\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-58088\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:26:50.651245Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-667\", \"description\": \"CWE-667 Improper Locking\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:57:56.161Z\"}}], \"cna\": {\"title\": \"bpf: Fix deadlock when freeing cgroup storage\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"c4bcfb38a95edb1021a53f2d0356a78120ecfbe4\", \"lessThan\": \"6ecb9fa14eec5f15d97c84c36896871335f6ddfb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c4bcfb38a95edb1021a53f2d0356a78120ecfbe4\", \"lessThan\": \"fac674d2bd68f3479f27328626b42d1eebd11fef\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c4bcfb38a95edb1021a53f2d0356a78120ecfbe4\", \"lessThan\": \"fcec95b4ab3e7bc6b2f36e5d59f7e24104ea87f7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c4bcfb38a95edb1021a53f2d0356a78120ecfbe4\", \"lessThan\": \"c78f4afbd962f43a3989f45f3ca04300252b19b5\", \"versionType\": \"git\"}], \"programFiles\": [\"kernel/bpf/bpf_cgrp_storage.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.2\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.2\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.80\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.17\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.13.*\"}, {\"status\": \"unaffected\", \"version\": \"6.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/bpf/bpf_cgrp_storage.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/6ecb9fa14eec5f15d97c84c36896871335f6ddfb\"}, {\"url\": \"https://git.kernel.org/stable/c/fac674d2bd68f3479f27328626b42d1eebd11fef\"}, {\"url\": \"https://git.kernel.org/stable/c/fcec95b4ab3e7bc6b2f36e5d59f7e24104ea87f7\"}, {\"url\": \"https://git.kernel.org/stable/c/c78f4afbd962f43a3989f45f3ca04300252b19b5\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Fix deadlock when freeing cgroup storage\\n\\nThe following commit\\nbc235cdb423a (\\\"bpf: Prevent deadlock from recursive bpf_task_storage_[get|delete]\\\")\\nfirst introduced deadlock prevention for fentry/fexit programs attaching\\non bpf_task_storage helpers. That commit also employed the logic in map\\nfree path in its v6 version.\\n\\nLater bpf_cgrp_storage was first introduced in\\nc4bcfb38a95e (\\\"bpf: Implement cgroup storage available to non-cgroup-attached bpf progs\\\")\\nwhich faces the same issue as bpf_task_storage, instead of its busy\\ncounter, NULL was passed to bpf_local_storage_map_free() which opened\\na window to cause deadlock:\\n\\n\\t\u003cTASK\u003e\\n\\t\\t(acquiring local_storage-\u003elock)\\n\\t_raw_spin_lock_irqsave+0x3d/0x50\\n\\tbpf_local_storage_update+0xd1/0x460\\n\\tbpf_cgrp_storage_get+0x109/0x130\\n\\tbpf_prog_a4d4a370ba857314_cgrp_ptr+0x139/0x170\\n\\t? __bpf_prog_enter_recur+0x16/0x80\\n\\tbpf_trampoline_6442485186+0x43/0xa4\\n\\tcgroup_storage_ptr+0x9/0x20\\n\\t\\t(holding local_storage-\u003elock)\\n\\tbpf_selem_unlink_storage_nolock.constprop.0+0x135/0x160\\n\\tbpf_selem_unlink_storage+0x6f/0x110\\n\\tbpf_local_storage_map_free+0xa2/0x110\\n\\tbpf_map_free_deferred+0x5b/0x90\\n\\tprocess_one_work+0x17c/0x390\\n\\tworker_thread+0x251/0x360\\n\\tkthread+0xd2/0x100\\n\\tret_from_fork+0x34/0x50\\n\\tret_from_fork_asm+0x1a/0x30\\n\\t\u003c/TASK\u003e\\n\\nProgs:\\n - A: SEC(\\\"fentry/cgroup_storage_ptr\\\")\\n   - cgid (BPF_MAP_TYPE_HASH)\\n\\tRecord the id of the cgroup the current task belonging\\n\\tto in this hash map, using the address of the cgroup\\n\\tas the map key.\\n   - cgrpa (BPF_MAP_TYPE_CGRP_STORAGE)\\n\\tIf current task is a kworker, lookup the above hash\\n\\tmap using function parameter @owner as the key to get\\n\\tits corresponding cgroup id which is then used to get\\n\\ta trusted pointer to the cgroup through\\n\\tbpf_cgroup_from_id(). This trusted pointer can then\\n\\tbe passed to bpf_cgrp_storage_get() to finally trigger\\n\\tthe deadlock issue.\\n - B: SEC(\\\"tp_btf/sys_enter\\\")\\n   - cgrpb (BPF_MAP_TYPE_CGRP_STORAGE)\\n\\tThe only purpose of this prog is to fill Prog A\u0027s\\n\\thash map by calling bpf_cgrp_storage_get() for as\\n\\tmany userspace tasks as possible.\\n\\nSteps to reproduce:\\n - Run A;\\n - while (true) { Run B; Destroy B; }\\n\\nFix this issue by passing its busy counter to the free procedure so\\nit can be properly incremented before storage/smap locking.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.80\", \"versionStartIncluding\": \"6.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.17\", \"versionStartIncluding\": \"6.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.5\", \"versionStartIncluding\": \"6.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14\", \"versionStartIncluding\": \"6.2\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T10:09:48.472Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-58088\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T19:36:35.008Z\", \"dateReserved\": \"2025-03-06T15:52:09.187Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-03-12T09:41:58.986Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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