{"id":"CVE-2024-58084","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-58084","generatedAt":"2026-10-28T03:59:42.085Z","title":"In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool() Commit 2e4955167ec5 (\"firmware: qcom: scm: Fix __scm and waitq completion variable initialization\") introduced…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool()\n\nCommit 2e4955167ec5 (\"firmware: qcom: scm: Fix __scm and waitq\ncompletion variable initialization\") introduced a write barrier in probe\nfunction to store global '__scm' variable.  We all known barriers are\npaired (see memory-barriers.txt: \"Note that write barriers should\nnormally be paired with read or address-dependency barriers\"), therefore\naccessing it from concurrent contexts requires read barrier.  Previous\ncommit added such barrier in qcom_scm_is_available(), so let's use that\ndirectly.\n\nLack of this read barrier can result in fetching stale '__scm' variable\nvalue, NULL, and dereferencing it.\n\nNote that barrier in qcom_scm_is_available() satisfies here the control\ndependency.","published":"2025-03-06T17:15:22.000Z","lastModified":"2026-06-17T08:14:36.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["linux/linux kernel"],"epss":{"score":0.00178,"percentile":0.07367,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/b628510397b5cafa1f5d3e848a28affd1c635302","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e03db7c1255ebabba5e1a447754faeb138de15a2","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fee921e3c641f64185abee83f9a6e65f0b380682","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-58084","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}