{"id":"CVE-2025-39728","state":"PUBLISHED","title":"clk: samsung: Fix UBSAN panic in samsung_clk_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: samsung: Fix UBSAN panic in samsung_clk_init()\n\nWith UBSAN_ARRAY_BOUNDS=y, I'm hitting the below panic due to\ndereferencing `ctx->clk_data.hws` before setting\n`ctx->clk_data.num = nr_clks`. Move that up to fix the crash.\n\n  UBSAN: array index out of bounds: 00000000f2005512 [#1] PREEMPT SMP\n  <snip>\n  Call trace:\n   samsung_clk_init+0x110/0x124 (P)\n   samsung_clk_init+0x48/0x124 (L)\n   samsung_cmu_register_one+0x3c/0xa0\n   exynos_arm64_register_cmu+0x54/0x64\n   __gs101_cmu_top_of_clk_init_declare+0x28/0x60\n   ...","publishedAt":"2025-04-18T07:01:35.818Z","updatedAt":"2026-05-11T21:35:07.394Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"00307934eb94aaa0a99addfb37b9fe206f945004","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"d974e177369c034984cece9d7d4fada9f8b9c740","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"0fef48f4a70e45a93e73c39023c3a6ea624714d6","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"4d29a6dcb51e346595a15b49693eeb728925ca43","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"24307866e0ac0a5ddb462e766ceda5e27a6fbbe3","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"a1500b98cd81a32fdfb9bc63c33bb9f0c2a0a1bf","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"157de9e48007a20c65d02fc0229a16f38134a72d","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"d19d7345a7bcdb083b65568a11b11adffe0687af","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/samsung/clk.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.236","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.180","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.134","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.87","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.23","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.11","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14.2","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/samsung/clk.c"]}],"references":["https://git.kernel.org/stable/c/00307934eb94aaa0a99addfb37b9fe206f945004","https://git.kernel.org/stable/c/d974e177369c034984cece9d7d4fada9f8b9c740","https://git.kernel.org/stable/c/0fef48f4a70e45a93e73c39023c3a6ea624714d6","https://git.kernel.org/stable/c/4d29a6dcb51e346595a15b49693eeb728925ca43","https://git.kernel.org/stable/c/24307866e0ac0a5ddb462e766ceda5e27a6fbbe3","https://git.kernel.org/stable/c/a1500b98cd81a32fdfb9bc63c33bb9f0c2a0a1bf","https://git.kernel.org/stable/c/157de9e48007a20c65d02fc0229a16f38134a72d","https://git.kernel.org/stable/c/d19d7345a7bcdb083b65568a11b11adffe0687af","https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"],"weaknesses":["CWE-129"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39728.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39728","state":"PUBLISHED","datePublished":"2025-04-18T07:01:35.818Z","dateUpdated":"2026-05-11T21:35:07.394Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.118Z"},"containers":{"cna":{"title":"clk: samsung: Fix UBSAN panic in samsung_clk_init()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: samsung: Fix UBSAN panic in samsung_clk_init()\n\nWith UBSAN_ARRAY_BOUNDS=y, I'm hitting the below panic due to\ndereferencing `ctx->clk_data.hws` before setting\n`ctx->clk_data.num = nr_clks`. Move that up to fix the crash.\n\n  UBSAN: array index out of bounds: 00000000f2005512 [#1] PREEMPT SMP\n  <snip>\n  Call trace:\n   samsung_clk_init+0x110/0x124 (P)\n   samsung_clk_init+0x48/0x124 (L)\n   samsung_cmu_register_one+0x3c/0xa0\n   exynos_arm64_register_cmu+0x54/0x64\n   __gs101_cmu_top_of_clk_init_declare+0x28/0x60\n   ..."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"00307934eb94aaa0a99addfb37b9fe206f945004","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"d974e177369c034984cece9d7d4fada9f8b9c740","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"0fef48f4a70e45a93e73c39023c3a6ea624714d6","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"4d29a6dcb51e346595a15b49693eeb728925ca43","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"24307866e0ac0a5ddb462e766ceda5e27a6fbbe3","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"a1500b98cd81a32fdfb9bc63c33bb9f0c2a0a1bf","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"157de9e48007a20c65d02fc0229a16f38134a72d","versionType":"git"},{"version":"e620a1e061c4738e26c3edf2abaae7842532cd80","status":"affected","lessThan":"d19d7345a7bcdb083b65568a11b11adffe0687af","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/samsung/clk.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.236","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.180","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.134","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.87","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.23","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.11","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14.2","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/clk/samsung/clk.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/00307934eb94aaa0a99addfb37b9fe206f945004"},{"url":"https://git.kernel.org/stable/c/d974e177369c034984cece9d7d4fada9f8b9c740"},{"url":"https://git.kernel.org/stable/c/0fef48f4a70e45a93e73c39023c3a6ea624714d6"},{"url":"https://git.kernel.org/stable/c/4d29a6dcb51e346595a15b49693eeb728925ca43"},{"url":"https://git.kernel.org/stable/c/24307866e0ac0a5ddb462e766ceda5e27a6fbbe3"},{"url":"https://git.kernel.org/stable/c/a1500b98cd81a32fdfb9bc63c33bb9f0c2a0a1bf"},{"url":"https://git.kernel.org/stable/c/157de9e48007a20c65d02fc0229a16f38134a72d"},{"url":"https://git.kernel.org/stable/c/d19d7345a7bcdb083b65568a11b11adffe0687af"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:35:07.394Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.236"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.87"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.13.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.14.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"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":{"timestamp":"2025-10-01T16:13:45.605080Z","id":"CVE-2025-39728","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-129","type":"CWE","lang":"en","description":"CWE-129 Improper Validation of Array Index"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T16:13:48.667Z"}},{"title":"CVE Program 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