GHSA-PMX2-4VWX-FC3H
Vulnerability from github – Published: 2024-03-26 18:32 – Updated: 2025-11-03 21:31In 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: ? __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 bpfprog_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
{
"affected": [],
"aliases": [
"CVE-2023-52621"
],
"database_specific": {
"cwe_ids": [
"CWE-617"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-26T18:15:08Z",
"severity": "HIGH"
},
"details": "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",
"id": "GHSA-pmx2-4vwx-fc3h",
"modified": "2025-11-03T21:31:01Z",
"published": "2024-03-26T18:32:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52621"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3516f93cc63d956e1b290ae4b7bf2586074535a0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/82f2df94dac1aa9b879e74d1f82ba1b631bdc612"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.