CVE-2023-52621 (GCVE-0-2023-52621)

Vulnerability from cvelistv5 – Published: 2024-03-26 17:19 – Updated: 2026-05-11 19:30
VLAI
Title
bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers These three bpf_map_{lookup,update,delete}_elem() helpers are also available for sleepable bpf program, so add the corresponding lock assertion for sleepable bpf program, otherwise the following warning will be reported when a sleepable bpf program manipulates bpf map under interpreter mode (aka bpf_jit_enable=0): WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ...... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Call Trace: <TASK> ? __warn+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60 ? report_bug+0x1ba/0x1f0 ? handle_bug+0x40/0x80 ? exc_invalid_op+0x18/0x50 ? asm_exc_invalid_op+0x1b/0x20 ? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0 ? rcu_is_watching+0x23/0x50 ? bpf_map_lookup_elem+0x54/0x60 ? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 </TASK>
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 82f2df94dac1aa9b879e74d1f82ba1b631bdc612 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 3516f93cc63d956e1b290ae4b7bf2586074535a0 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < d6d6fe4bb105595118f12abeed4a7bdd450853f3 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 483cb92334cd7f1d5387dccc0ab5d595d27a669d (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < c7f1b6146f4a46d727c0d046284c28b6882c6304 (git)
Affected: 1e6c62a8821557720a9b2ea9617359b264f2f67c , < 169410eba271afc9f0fb476d996795aa26770c6d (git)
Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.77 , ≤ 6.1.* (semver)
Unaffected: 6.6.16 , ≤ 6.6.* (semver)
Unaffected: 6.7.4 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\\n\\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\\navailable for sleepable bpf program, so add the corresponding lock\\nassertion for sleepable bpf program, otherwise the following warning\\nwill be reported when a sleepable bpf program manipulates bpf map under\\ninterpreter mode (aka bpf_jit_enable=0):\\n\\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\\n  ......\\n  Call Trace:\\n   \u003cTASK\u003e\\n   ? __warn+0xa5/0x240\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? report_bug+0x1ba/0x1f0\\n   ? handle_bug+0x40/0x80\\n   ? exc_invalid_op+0x18/0x50\\n   ? asm_exc_invalid_op+0x1b/0x20\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\\n   ? rcu_is_watching+0x23/0x50\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ___bpf_prog_run+0x513/0x3b70\\n   __bpf_prog_run32+0x9d/0xd0\\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\\n   bpf_trampoline_6442580665+0x4d/0x1000\\n   __x64_sys_getpgid+0x5/0x30\\n   ? do_syscall_64+0x36/0xb0\\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n   \u003c/TASK\u003e\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: verifique rcu_read_lock_trace_held() antes de llamar a los ayudantes de mapas de bpf. Estos tres ayudantes de bpf_map_{lookup,update,delete}_elem() tambi\\u00e9n est\\u00e1n disponibles para el programa bpf que se puede dormir, as\\u00ed que agregue el bloqueo correspondiente. aserci\\u00f3n para el programa bpf con capacidad para dormir; de lo contrario, se informar\\u00e1 la siguiente advertencia cuando un programa bpf con capacidad para dormir manipule el mapa bpf en modo int\\u00e9rprete (tambi\\u00e9n conocido como bpf_jit_enable=0): ADVERTENCIA: CPU: 3 PID: 4985 en kernel/bpf/helpers.c:40. ..... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Nombre del hardware: PC est\\u00e1ndar QEMU (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Seguimiento de llamadas:  ? __advertir+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60? report_bug+0x1ba/0x1f0? handle_bug+0x40/0x80? exc_invalid_op+0x18/0x50? asm_exc_invalid_op+0x1b/0x20? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0? rcu_is_watching+0x23/0x50? bpf_map_lookup_elem+0x54/0x60? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entrada_SYSCALL_64_after_hwframe+0x6e/0x76 \"}]",
      "id": "CVE-2023-52621",
      "lastModified": "2024-11-21T08:40:13.260",
      "published": "2024-03-26T18:15:08.817",
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    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52621\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-26T18:15:08.817\",\"lastModified\":\"2025-11-25T17:23:42.697\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\\n\\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\\navailable for sleepable bpf program, so add the corresponding lock\\nassertion for sleepable bpf program, otherwise the following warning\\nwill be reported when a sleepable bpf program manipulates bpf map under\\ninterpreter mode (aka bpf_jit_enable=0):\\n\\n  WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\\n  CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\\n  ......\\n  Call Trace:\\n   \u003cTASK\u003e\\n   ? __warn+0xa5/0x240\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? report_bug+0x1ba/0x1f0\\n   ? handle_bug+0x40/0x80\\n   ? exc_invalid_op+0x18/0x50\\n   ? asm_exc_invalid_op+0x1b/0x20\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\\n   ? rcu_is_watching+0x23/0x50\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ___bpf_prog_run+0x513/0x3b70\\n   __bpf_prog_run32+0x9d/0xd0\\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\\n   bpf_trampoline_6442580665+0x4d/0x1000\\n   __x64_sys_getpgid+0x5/0x30\\n   ? do_syscall_64+0x36/0xb0\\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n   \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: verifique rcu_read_lock_trace_held() antes de llamar a los ayudantes de mapas de bpf. Estos tres ayudantes de bpf_map_{lookup,update,delete}_elem() tambi\u00e9n est\u00e1n disponibles para el programa bpf que se puede dormir, as\u00ed que agregue el bloqueo correspondiente. aserci\u00f3n para el programa bpf con capacidad para dormir; de lo contrario, se informar\u00e1 la siguiente advertencia cuando un programa bpf con capacidad para dormir manipule el mapa bpf en modo int\u00e9rprete (tambi\u00e9n conocido como bpf_jit_enable=0): ADVERTENCIA: CPU: 3 PID: 4985 en kernel/bpf/helpers.c:40. ..... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Seguimiento de llamadas:  ? __advertir+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60? report_bug+0x1ba/0x1f0? handle_bug+0x40/0x80? exc_invalid_op+0x18/0x50? asm_exc_invalid_op+0x1b/0x20? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0? rcu_is_watching+0x23/0x50? bpf_map_lookup_elem+0x54/0x60? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entrada_SYSCALL_64_after_hwframe+0x6e/0x76 \"}],\"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\":\"CWE-617\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10\",\"versionEndExcluding\":\"5.10.237\",\"matchCriteriaId\":\"ADF07DB8-E560-4CDE-8E9C-2297AFF73222\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.181\",\"matchCriteriaId\":\"12331C9E-F601-4EFC-899E-369F98DCC70B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.77\",\"matchCriteriaId\":\"0FA28946-970D-4F4D-B759-4E77B28809B5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.16\",\"matchCriteriaId\":\"A5007D6A-4B58-423A-8A3A-A1A656A263C8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.7.4\",\"matchCriteriaId\":\"848BC44C-9D25-4557-A50A-4B8BF310FA78\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3516f93cc63d956e1b290ae4b7bf2586074535a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/82f2df94dac1aa9b879e74d1f82ba1b631bdc612\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
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4985 Comm: test_progs Not tainted 6.6.0+ #2\\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\\n  RIP: 0010:bpf_map_lookup_elem+0x54/0x60\\n  ......\\n  Call Trace:\\n   \u003cTASK\u003e\\n   ? __warn+0xa5/0x240\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? report_bug+0x1ba/0x1f0\\n   ? handle_bug+0x40/0x80\\n   ? exc_invalid_op+0x18/0x50\\n   ? asm_exc_invalid_op+0x1b/0x20\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ? rcu_lockdep_current_cpu_online+0x65/0xb0\\n   ? rcu_is_watching+0x23/0x50\\n   ? bpf_map_lookup_elem+0x54/0x60\\n   ? __pfx_bpf_map_lookup_elem+0x10/0x10\\n   ___bpf_prog_run+0x513/0x3b70\\n   __bpf_prog_run32+0x9d/0xd0\\n   ? __bpf_prog_enter_sleepable_recur+0xad/0x120\\n   ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\\n   bpf_trampoline_6442580665+0x4d/0x1000\\n   __x64_sys_getpgid+0x5/0x30\\n   ? do_syscall_64+0x36/0xb0\\n   entry_SYSCALL_64_after_hwframe+0x6e/0x76\\n   \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, 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      "cveMetadata": "{\"cveId\": \"CVE-2023-52621\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:16:44.783Z\", \"dateReserved\": \"2024-03-06T09:52:12.090Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-26T17:19:23.208Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.




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.