Bug 2376377 (CVE-2025-38206)
| Summary: | CVE-2025-38206 kernel: Kernel: Double free vulnerability in exFAT filesystem can lead to denial of service | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | Keywords: | Security |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
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| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
A flaw was found in the Linux kernel's exFAT filesystem driver. A local attacker with low privileges could exploit a double free vulnerability within the `delayed_free` function. This memory corruption flaw can lead to a denial of service (DoS), potentially causing system instability or crashes. It may also result in information disclosure.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
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Upstream advisory: https://lore.kernel.org/linux-cve-announce/2025070420-CVE-2025-38206-a077@gregkh/T This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2026:3066 https://access.redhat.com/errata/RHSA-2026:3066 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2026:3275 https://access.redhat.com/errata/RHSA-2026:3275 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2026:4246 https://access.redhat.com/errata/RHSA-2026:4246 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2026:4745 https://access.redhat.com/errata/RHSA-2026:4745 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:6948 https://access.redhat.com/errata/RHSA-2026:6948 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2026:6986 https://access.redhat.com/errata/RHSA-2026:6986 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2026:7013 https://access.redhat.com/errata/RHSA-2026:7013 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2026:7100 https://access.redhat.com/errata/RHSA-2026:7100 |
In the Linux kernel, the following vulnerability has been resolved: exfat: fix double free in delayed_free The double free could happen in the following path. exfat_create_upcase_table() exfat_create_upcase_table() : return error exfat_free_upcase_table() : free ->vol_utbl exfat_load_default_upcase_table : return error exfat_kill_sb() delayed_free() exfat_free_upcase_table() <--------- double free This patch set ->vol_util as NULL after freeing it.