CVE-2025-68329
- Source
- https://cve.org/CVERecord?id=CVE-2025-68329
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68329.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-68329
- Downstream
- Published
- 2025-12-22T16:12:23.133Z
- Modified
- 2026-03-10T21:50:42.261178Z
- Summary
- tracing: Fix WARN_ON in tracing_buffers_mmap_close for split VMAs
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
tracing: Fix WARNON in tracingbuffersmmapclose for split VMAs
When a VMA is split (e.g., by partial munmap or MAPFIXED), the kernel calls vmops->close on each portion. For trace buffer mappings, this results in ringbufferunmap() being called multiple times while ringbuffermap() was only called once.
This causes ringbufferunmap() to return -ENODEV on subsequent calls because usermapped is already 0, triggering a WARNON.
Trace buffer mappings cannot support partial mappings because the ring buffer structure requires the complete buffer including the meta page.
Fix this by adding a may_split callback that returns -EINVAL to prevent VMA splits entirely.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68329.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/45053c12c45f0fb8ef6ab95118dd928d2fec0255
- https://git.kernel.org/stable/c/922fdd0b755a84f9933b3ca195f60092b6bb88ee
- https://git.kernel.org/stable/c/b042fdf18e89a347177a49e795d8e5184778b5b6
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68329.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68329
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcf9f0f7c4c5bb45e7bb270e48bab6f7837825a64Fixed922fdd0b755a84f9933b3ca195f60092b6bb88eeFixed45053c12c45f0fb8ef6ab95118dd928d2fec0255Fixedb042fdf18e89a347177a49e795d8e5184778b5b6
Affected versions
v6.*
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.13
v6.12.14
v6.12.15
v6.12.16
v6.12.17
v6.12.18
v6.12.19
v6.12.2
v6.12.20
v6.12.21
v6.12.22
v6.12.23
v6.12.24
v6.12.25
v6.12.26
v6.12.27
v6.12.28
v6.12.29
v6.12.3
v6.12.30
v6.12.31
v6.12.32
v6.12.33
v6.12.34
v6.12.35
v6.12.36
v6.12.37
v6.12.38
v6.12.39
v6.12.4
v6.12.40
v6.12.41
v6.12.42
v6.12.43
v6.12.44
v6.12.45
v6.12.46
v6.12.47
v6.12.48
v6.12.49
v6.12.5
v6.12.50
v6.12.51
v6.12.52
v6.12.53
v6.12.54
v6.12.55
v6.12.56
v6.12.57
v6.12.58
v6.12.59
v6.12.6
v6.12.60
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.14
v6.14-rc1
v6.14-rc2
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.15
v6.15-rc1
v6.15-rc2
v6.15-rc3
v6.15-rc4
v6.15-rc5
v6.15-rc6
v6.15-rc7
v6.16
v6.16-rc1
v6.16-rc2
v6.16-rc3
v6.16-rc4
v6.16-rc5
v6.16-rc6
v6.16-rc7
v6.17
v6.17-rc1
v6.17-rc2
v6.17-rc3
v6.17-rc4
v6.17-rc5
v6.17-rc6
v6.17-rc7
v6.17.1
v6.17.10
v6.17.2
v6.17.3
v6.17.4
v6.17.5
v6.17.6
v6.17.7
v6.17.8
v6.17.9
v6.18-rc1
v6.18-rc2
v6.18-rc3
v6.9