{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-38723", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.033Z", "datePublished": "2025-09-04T15:33:16.547Z", "dateUpdated": "2025-09-29T05:56:48.674Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-29T05:56:48.674Z"}, "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]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/loongarch/net/bpf_jit.c"], "versions": [{"version": "5dc615520c4dfb358245680f1904bad61116648e", "lessThan": "1a782fa32e644aa9fbae6c8488f3e61221ac96e1", "status": "affected", "versionType": "git"}, {"version": "5dc615520c4dfb358245680f1904bad61116648e", "lessThan": "17c010fe45def335fe03a0718935416b04c7f349", "status": "affected", "versionType": "git"}, {"version": "5dc615520c4dfb358245680f1904bad61116648e", "lessThan": "f83d469e16bb1f75991ca67c56786fb2aaa42bea", "status": "affected", "versionType": "git"}, {"version": "5dc615520c4dfb358245680f1904bad61116648e", "lessThan": "f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f", "status": "affected", "versionType": "git"}, {"version": "5dc615520c4dfb358245680f1904bad61116648e", "lessThan": "9262e3e04621558e875eb5afb5e726b648cd5949", "status": "affected", "versionType": "git"}, {"version": "5dc615520c4dfb358245680f1904bad61116648e", "lessThan": "cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/loongarch/net/bpf_jit.c"], "versions": [{"version": "6.1", "status": "affected"}, {"version": "0", "lessThan": "6.1", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.149", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.103", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.43", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.11", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.2", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.1.149"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.6.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.12.43"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.16.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1", "versionEndExcluding": "6.17"}]}]}], "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"}}}}

{}

{"cveTags": [], "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]"}], "id": "CVE-2025-38723", "lastModified": "2025-09-05T17:47:24.833", "metrics": {}, "published": "2025-09-04T16:15:42.130", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/17c010fe45def335fe03a0718935416b04c7f349"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1a782fa32e644aa9fbae6c8488f3e61221ac96e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9262e3e04621558e875eb5afb5e726b648cd5949"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f83d469e16bb1f75991ca67c56786fb2aaa42bea"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: LoongArch: BPF: Fix jump offset calculation in tailcall", "id": "2393160", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393160"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38723", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38723\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38723\nhttps://lore.kernel.org/linux-cve-announce/2025090401-CVE-2025-38723-18f0@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-05T14:02:32.222977+00:00", "updated": "2025-09-05T14:02:32.223031+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}