Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Delay put pmc->idev in mld_del_delrec() pmc->idev is still used in… (CVE-2025-38550)
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Delay put pmc->idev in mld_del_delrec() pmc->idev is still used in ip6_mc_clear_src(), so as mld_clear_delrec() does, the reference should be put after ip6_mc_clear_src() return.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-38550) in the Linux kernel's IPv6 multicast implementation involves improper timing of the put operation on pmc->idev within the mld_del_delrec() function. Red Hat Product Security has rated the impact as moderate and issued a security advisory (RHSA-2025:15740) with updated kernel packages for Red Hat Enterprise Linux 9 and its variants. The advisory instructs users to apply the update and reboot systems to mitigate the issue.
Potential Impact
The vulnerability affects the core Linux kernel in Red Hat Enterprise Linux 9, potentially impacting IPv6 multicast functionality. The specific impact details and CVSS score are not provided in the advisory, but the issue is rated moderate by Red Hat Product Security. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated kernel packages that address this vulnerability. Users should apply the security update as described in the Red Hat advisory RHSA-2025:15740 and reboot their systems to ensure the fix is active. Patch status is confirmed as an official fix available from Red Hat.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Delay put pmc->idev in mld_del_delrec() pmc->idev is still used in… (CVE-2025-38550)
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: Delay put pmc->idev in mld_del_delrec() pmc->idev is still used in ip6_mc_clear_src(), so as mld_clear_delrec() does, the reference should be put after ip6_mc_clear_src() return.
CVSS v3.1
Score 7.8high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-38550) in the Linux kernel's IPv6 multicast implementation involves improper timing of the put operation on pmc->idev within the mld_del_delrec() function. Red Hat Product Security has rated the impact as moderate and issued a security advisory (RHSA-2025:15740) with updated kernel packages for Red Hat Enterprise Linux 9 and its variants. The advisory instructs users to apply the update and reboot systems to mitigate the issue.
Potential Impact
The vulnerability affects the core Linux kernel in Red Hat Enterprise Linux 9, potentially impacting IPv6 multicast functionality. The specific impact details and CVSS score are not provided in the advisory, but the issue is rated moderate by Red Hat Product Security. No known exploits in the wild have been reported.
Mitigation Recommendations
Red Hat has released updated kernel packages that address this vulnerability. Users should apply the security update as described in the Red Hat advisory RHSA-2025:15740 and reboot their systems to ensure the fix is active. Patch status is confirmed as an official fix available from Red Hat.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:15740
- Cve Count
- 1
Threat ID: 6a3da1e44853345fc182cf7a
Added to database: 06/25/2026, 21:47:16 UTC
Last enriched: 06/25/2026, 22:31:13 UTC
Last updated: 09/10/2026, 19:24:56 UTC
Views: 35
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