{"api_version":"1","generated_at":"2026-07-05T14:40:02+00:00","cve":"CVE-2025-38723","urls":{"html":"https://cve.report/CVE-2025-38723","api":"https://cve.report/api/cve/CVE-2025-38723.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2025-38723","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-38723"},"summary":{"title":"LoongArch: BPF: Fix jump offset calculation in tailcall","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Fix jump offset calculation in tailcall\n\nThe extra pass of bpf_int_jit_compile() skips JIT context initialization\nwhich essentially skips offset calculation leaving out_offset = -1, so\nthe jmp_offset in emit_bpf_tail_call is calculated by\n\n\"#define jmp_offset (out_offset - (cur_offset))\"\n\nis a negative number, which is wrong. The final generated assembly are\nas follow.\n\n54:\tbgeu        \t$a2, $t1, -8\t    # 0x0000004c\n58:\taddi.d      \t$a6, $s5, -1\n5c:\tbltz        \t$a6, -16\t    # 0x0000004c\n60:\talsl.d      \t$t2, $a2, $a1, 0x3\n64:\tld.d        \t$t2, $t2, 264\n68:\tbeq         \t$t2, $zero, -28\t    # 0x0000004c\n\nBefore apply this patch, the follow test case will reveal soft lock issues.\n\ncd tools/testing/selftests/bpf/\n./test_progs --allow=tailcalls/tailcall_bpf2bpf_1\n\ndmesg:\nwatchdog: BUG: soft lockup - CPU#2 stuck for 26s! [test_progs:25056]","state":"PUBLISHED","assigner":"Linux","published_at":"2025-09-04 16:15:42","updated_at":"2026-05-12 13:17:02"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","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","data":{"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"}}],"references":[{"url":"https://git.kernel.org/stable/c/1a782fa32e644aa9fbae6c8488f3e61221ac96e1","name":"https://git.kernel.org/stable/c/1a782fa32e644aa9fbae6c8488f3e61221ac96e1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","name":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3","name":"https://git.kernel.org/stable/c/cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9262e3e04621558e875eb5afb5e726b648cd5949","name":"https://git.kernel.org/stable/c/9262e3e04621558e875eb5afb5e726b648cd5949","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/17c010fe45def335fe03a0718935416b04c7f349","name":"https://git.kernel.org/stable/c/17c010fe45def335fe03a0718935416b04c7f349","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html","name":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html","refsource":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f83d469e16bb1f75991ca67c56786fb2aaa42bea","name":"https://git.kernel.org/stable/c/f83d469e16bb1f75991ca67c56786fb2aaa42bea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f","name":"https://git.kernel.org/stable/c/f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-38723","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38723","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dc615520c4dfb358245680f1904bad61116648e 1a782fa32e644aa9fbae6c8488f3e61221ac96e1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dc615520c4dfb358245680f1904bad61116648e 17c010fe45def335fe03a0718935416b04c7f349 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dc615520c4dfb358245680f1904bad61116648e f83d469e16bb1f75991ca67c56786fb2aaa42bea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dc615520c4dfb358245680f1904bad61116648e f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dc615520c4dfb358245680f1904bad61116648e 9262e3e04621558e875eb5afb5e726b648cd5949 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5dc615520c4dfb358245680f1904bad61116648e cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.149 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.103 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.43 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15.11 6.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16.2 6.16.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 * original_commit_for_fix","platforms":[]},{"source":"ADP","vendor":"Siemens","product":"SIMATIC CN 4100","version":"affected V5.0 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2025","cve_id":"38723","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2025-11-03T17:41:51.527Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"title":"CVE Program Container"},{"affected":[{"defaultStatus":"unknown","product":"SIMATIC CN 4100","vendor":"Siemens","versions":[{"lessThan":"V5.0","status":"affected","version":"0","versionType":"custom"}]}],"providerMetadata":{"dateUpdated":"2026-05-12T12:05:52.998Z","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP"},"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html"}],"x_adpType":"supplier"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/loongarch/net/bpf_jit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1a782fa32e644aa9fbae6c8488f3e61221ac96e1","status":"affected","version":"5dc615520c4dfb358245680f1904bad61116648e","versionType":"git"},{"lessThan":"17c010fe45def335fe03a0718935416b04c7f349","status":"affected","version":"5dc615520c4dfb358245680f1904bad61116648e","versionType":"git"},{"lessThan":"f83d469e16bb1f75991ca67c56786fb2aaa42bea","status":"affected","version":"5dc615520c4dfb358245680f1904bad61116648e","versionType":"git"},{"lessThan":"f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f","status":"affected","version":"5dc615520c4dfb358245680f1904bad61116648e","versionType":"git"},{"lessThan":"9262e3e04621558e875eb5afb5e726b648cd5949","status":"affected","version":"5dc615520c4dfb358245680f1904bad61116648e","versionType":"git"},{"lessThan":"cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3","status":"affected","version":"5dc615520c4dfb358245680f1904bad61116648e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/loongarch/net/bpf_jit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.1"},{"lessThan":"6.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.149","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.103","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.43","versionType":"semver"},{"lessThanOrEqual":"6.15.*","status":"unaffected","version":"6.15.11","versionType":"semver"},{"lessThanOrEqual":"6.16.*","status":"unaffected","version":"6.16.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.17","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.149","versionStartIncluding":"6.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.103","versionStartIncluding":"6.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.43","versionStartIncluding":"6.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.15.11","versionStartIncluding":"6.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.16.2","versionStartIncluding":"6.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.17","versionStartIncluding":"6.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Fix jump offset calculation in tailcall\n\nThe extra pass of bpf_int_jit_compile() skips JIT context initialization\nwhich essentially skips offset calculation leaving out_offset = -1, so\nthe jmp_offset in emit_bpf_tail_call is calculated by\n\n\"#define jmp_offset (out_offset - (cur_offset))\"\n\nis a negative number, which is wrong. The final generated assembly are\nas follow.\n\n54:\tbgeu        \t$a2, $t1, -8\t    # 0x0000004c\n58:\taddi.d      \t$a6, $s5, -1\n5c:\tbltz        \t$a6, -16\t    # 0x0000004c\n60:\talsl.d      \t$t2, $a2, $a1, 0x3\n64:\tld.d        \t$t2, $t2, 264\n68:\tbeq         \t$t2, $zero, -28\t    # 0x0000004c\n\nBefore apply this patch, the follow test case will reveal soft lock issues.\n\ncd tools/testing/selftests/bpf/\n./test_progs --allow=tailcalls/tailcall_bpf2bpf_1\n\ndmesg:\nwatchdog: BUG: soft lockup - CPU#2 stuck for 26s! [test_progs:25056]"}],"providerMetadata":{"dateUpdated":"2026-05-11T21:33:44.278Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1a782fa32e644aa9fbae6c8488f3e61221ac96e1"},{"url":"https://git.kernel.org/stable/c/17c010fe45def335fe03a0718935416b04c7f349"},{"url":"https://git.kernel.org/stable/c/f83d469e16bb1f75991ca67c56786fb2aaa42bea"},{"url":"https://git.kernel.org/stable/c/f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f"},{"url":"https://git.kernel.org/stable/c/9262e3e04621558e875eb5afb5e726b648cd5949"},{"url":"https://git.kernel.org/stable/c/cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3"}],"title":"LoongArch: BPF: Fix jump offset calculation in tailcall","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2025-38723","datePublished":"2025-09-04T15:33:16.547Z","dateReserved":"2025-04-16T04:51:24.033Z","dateUpdated":"2026-05-12T12:05:52.998Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-09-04 16:15:42","lastModifiedDate":"2026-05-12 13:17:02","problem_types":["NVD-CWE-noinfo"],"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}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.149","matchCriteriaId":"0C9B5F1A-9644-4E1A-B1E8-A0A2EE50EFC1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.103","matchCriteriaId":"F2293654-7169-49B5-8D0D-EE51EF8B8E48"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.43","matchCriteriaId":"472C5F87-2BF3-4FAB-9B21-DA7513977363"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.15.11","matchCriteriaId":"BC242347-F722-43AE-B910-BE0B22386977"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.16.2","matchCriteriaId":"BD7C087D-2415-4521-B624-30003352F899"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2025","CveId":"38723","Ordinal":"1","Title":"LoongArch: BPF: Fix jump offset calculation in tailcall","CVE":"CVE-2025-38723","Year":"2025"},"notes":[{"CveYear":"2025","CveId":"38723","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Fix jump offset calculation in tailcall\n\nThe extra pass of bpf_int_jit_compile() skips JIT context initialization\nwhich essentially skips offset calculation leaving out_offset = -1, so\nthe jmp_offset in emit_bpf_tail_call is calculated by\n\n\"#define jmp_offset (out_offset - (cur_offset))\"\n\nis a negative number, which is wrong. The final generated assembly are\nas follow.\n\n54:\tbgeu        \t$a2, $t1, -8\t    # 0x0000004c\n58:\taddi.d      \t$a6, $s5, -1\n5c:\tbltz        \t$a6, -16\t    # 0x0000004c\n60:\talsl.d      \t$t2, $a2, $a1, 0x3\n64:\tld.d        \t$t2, $t2, 264\n68:\tbeq         \t$t2, $zero, -28\t    # 0x0000004c\n\nBefore apply this patch, the follow test case will reveal soft lock issues.\n\ncd tools/testing/selftests/bpf/\n./test_progs --allow=tailcalls/tailcall_bpf2bpf_1\n\ndmesg:\nwatchdog: BUG: soft lockup - CPU#2 stuck for 26s! [test_progs:25056]","Type":"Description","Title":"LoongArch: BPF: Fix jump offset calculation in tailcall"}]}}}