CVE-2025-21758
- Source
- https://cve.org/CVERecord?id=CVE-2025-21758
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21758.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-21758
- Downstream
- Related
- Published
- 2025-02-27T02:18:12Z
- Modified
- 2026-09-09T03:30:52Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ipv6: mcast: add RCU protection to mld_newpack()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: add RCU protection to mld_newpack()
mld_newpack() can be called without RTNL or RCU being held.
Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.
Instead use alloc_skb() and charge the net->ipv6.igmp_sk socket under RCU protection.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21758.json" }- References
-
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://git.kernel.org/stable/c/1b91c597b0214b1b462eb627ec02658c944623f2
- https://git.kernel.org/stable/c/25195f9d5ffcc8079ad743a50c0409dbdc48d98a
- https://git.kernel.org/stable/c/29fa42197f26a97cde29fa8c40beddf44ea5c8f3
- https://git.kernel.org/stable/c/a527750d877fd334de87eef81f1cb5f0f0ca3373
- https://git.kernel.org/stable/c/d60d493b0e65647e0335e6a7c4547abcea7df8e9
- https://git.kernel.org/stable/c/e8af3632a7f2da83e27b083f787bced1faba00b1
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21758.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-21758
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introducedb8ad0cbc58f703972e9e37c4e2a8081dd7e6a551Fixed29fa42197f26a97cde29fa8c40beddf44ea5c8f3Fixede8af3632a7f2da83e27b083f787bced1faba00b1Fixed1b91c597b0214b1b462eb627ec02658c944623f2Fixed25195f9d5ffcc8079ad743a50c0409dbdc48d98aFixedd60d493b0e65647e0335e6a7c4547abcea7df8e9Fixeda527750d877fd334de87eef81f1cb5f0f0ca3373
Linux / Kernel
Package
- Name
- Kernel