CVE-2026-74406
vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive(). udp_tunnel_sock_release() could set sk->sk_user_data to NULL while vxlan_gro_prepare_receive() is running. Let's check if rcu_dereference_sk_user_data() is NULL after skb_gro_remcsum_init().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
5602c48cf87562c2f95b831d690631935e834295 < 9c58c729d32e7cea5772cc44929c6cd61e5a31cd 5602c48cf87562c2f95b831d690631935e834295 < f79c80f173fda9545b220c1f094b65fc06c252d0 5602c48cf87562c2f95b831d690631935e834295 < 08f40c0d23c67c3aa4224c3311e134999c721fb4 5602c48cf87562c2f95b831d690631935e834295 < 4a8cde6f7281ea2c4c290f9ad9923b3631defceb 5602c48cf87562c2f95b831d690631935e834295 < ef44dac2a37f86eeae6b88ed10a6d60b35387dfd 5602c48cf87562c2f95b831d690631935e834295 < 30a45c0bffdd62350261e2f2689fdba426a33578
Linux / Linux
4.7
References
git.kernel.org: https://git.kernel.org/stable/c/9c58c729d32e7cea5772cc44929c6cd61e5a31cd git.kernel.org: https://git.kernel.org/stable/c/f79c80f173fda9545b220c1f094b65fc06c252d0 git.kernel.org: https://git.kernel.org/stable/c/08f40c0d23c67c3aa4224c3311e134999c721fb4 git.kernel.org: https://git.kernel.org/stable/c/4a8cde6f7281ea2c4c290f9ad9923b3631defceb git.kernel.org: https://git.kernel.org/stable/c/ef44dac2a37f86eeae6b88ed10a6d60b35387dfd git.kernel.org: https://git.kernel.org/stable/c/30a45c0bffdd62350261e2f2689fdba426a33578