{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-39887", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.145Z", "datePublished": "2025-09-23T06:00:53.648Z", "dateUpdated": "2025-09-29T06:01:48.722Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-29T06:01:48.722Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/osnoise: Fix null-ptr-deref in bitmap_parselist()\n\nA crash was observed with the following output:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000010\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 2 UID: 0 PID: 92 Comm: osnoise_cpus Not tainted 6.17.0-rc4-00201-gd69eb204c255 #138 PREEMPT(voluntary)\nRIP: 0010:bitmap_parselist+0x53/0x3e0\nCall Trace:\n <TASK>\n osnoise_cpus_write+0x7a/0x190\n vfs_write+0xf8/0x410\n ? do_sys_openat2+0x88/0xd0\n ksys_write+0x60/0xd0\n do_syscall_64+0xa4/0x260\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n </TASK>\n\nThis issue can be reproduced by below code:\n\nfd=open(\"/sys/kernel/debug/tracing/osnoise/cpus\", O_WRONLY);\nwrite(fd, \"0-2\", 0);\n\nWhen user pass 'count=0' to osnoise_cpus_write(), kmalloc() will return\nZERO_SIZE_PTR (16) and cpulist_parse() treat it as a normal value, which\ntrigger the null pointer dereference. Add check for the parameter 'count'."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace_osnoise.c"], "versions": [{"version": "17f89102fe23d7389085a8820550df688f79888a", "lessThan": "e33228a2cc7ff706ca88533464e8a3b525b961ed", "status": "affected", "versionType": "git"}, {"version": "17f89102fe23d7389085a8820550df688f79888a", "lessThan": "c1628c00c4351dd0727ef7f670694f68d9e663d8", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace_osnoise.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.8", "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": "6.16", "versionEndExcluding": "6.16.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e33228a2cc7ff706ca88533464e8a3b525b961ed"}, {"url": "https://git.kernel.org/stable/c/c1628c00c4351dd0727ef7f670694f68d9e663d8"}], "title": "tracing/osnoise: Fix null-ptr-deref in bitmap_parselist()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/osnoise: Fix null-ptr-deref in bitmap_parselist()\n\nA crash was observed with the following output:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000010\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 2 UID: 0 PID: 92 Comm: osnoise_cpus Not tainted 6.17.0-rc4-00201-gd69eb204c255 #138 PREEMPT(voluntary)\nRIP: 0010:bitmap_parselist+0x53/0x3e0\nCall Trace:\n <TASK>\n osnoise_cpus_write+0x7a/0x190\n vfs_write+0xf8/0x410\n ? do_sys_openat2+0x88/0xd0\n ksys_write+0x60/0xd0\n do_syscall_64+0xa4/0x260\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n </TASK>\n\nThis issue can be reproduced by below code:\n\nfd=open(\"/sys/kernel/debug/tracing/osnoise/cpus\", O_WRONLY);\nwrite(fd, \"0-2\", 0);\n\nWhen user pass 'count=0' to osnoise_cpus_write(), kmalloc() will return\nZERO_SIZE_PTR (16) and cpulist_parse() treat it as a normal value, which\ntrigger the null pointer dereference. Add check for the parameter 'count'."}], "id": "CVE-2025-39887", "lastModified": "2025-09-24T18:11:24.520", "metrics": {}, "published": "2025-09-23T06:15:48.820", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c1628c00c4351dd0727ef7f670694f68d9e663d8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e33228a2cc7ff706ca88533464e8a3b525b961ed"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: tracing/osnoise: Fix null-ptr-deref in bitmap_parselist()", "id": "2397574", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2397574"}, "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-2025-39887", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39887\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39887\nhttps://lore.kernel.org/linux-cve-announce/2025092302-CVE-2025-39887-12f0@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-09-23T16:03:13.550474+00:00", "updated": "2025-09-23T16:03:13.550526+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}