CVE-2025-21758
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ipv6: mcast: add RCU protection to mld_newpack()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 | affected | git | 29fa42197f26a97cde29fa8c40beddf44ea5c8f3 | Unavailable | None listed |
| b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 | affected | git | e8af3632a7f2da83e27b083f787bced1faba00b1 | Unavailable | None listed |
| b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 | affected | git | 1b91c597b0214b1b462eb627ec02658c944623f2 | Unavailable | None listed |
| b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 | affected | git | 25195f9d5ffcc8079ad743a50c0409dbdc48d98a | Unavailable | None listed |
| b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 | affected | git | d60d493b0e65647e0335e6a7c4547abcea7df8e9 | Unavailable | None listed |
| b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 | affected | git | a527750d877fd334de87eef81f1cb5f0f0ca3373 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.26 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.26 | Unavailable | None listed |
| 5.15.179 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.129 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.79 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.16 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.4 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |