Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6_send() igmp6_send() can be called without RTNL or RCU being held. Extend RCU protection so that we can safely fetch the net pointer and avoid a potential UAF. 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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 638e8fe3563a82f298fe537a28d5342a97278cf1; affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 6901bbb169e3add6c037218d996790cef6b3d650; affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 7e0a818ecc4d62e7fb668ea02de0bfe8ba0b7dff; affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a; affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 0bf8e2f3768629d437a32cb824149e6e98254381; affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 8e92d6a413feaf968a33f0b439ecf27404407458; affected b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 before 087c1faa594fa07a66933d750c0b2610aa1a2946 |
| Linux / Linux | affected 2.6.26; unaffected 0 before 2.6.26; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.79 through 6.6.*; unaffected 6.12.16 through 6.12.*; unaffected 6.13.4 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/638e8fe3563a82f298fe537a28d5342a97278cf1
- https://git.kernel.org/stable/c/6901bbb169e3add6c037218d996790cef6b3d650
- https://git.kernel.org/stable/c/7e0a818ecc4d62e7fb668ea02de0bfe8ba0b7dff
- https://git.kernel.org/stable/c/81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a
- https://git.kernel.org/stable/c/0bf8e2f3768629d437a32cb824149e6e98254381
- https://git.kernel.org/stable/c/8e92d6a413feaf968a33f0b439ecf27404407458
- https://git.kernel.org/stable/c/087c1faa594fa07a66933d750c0b2610aa1a2946
ADP enrichment
No English description supplied.
No references supplied.