CVE-2025-68353
- Source
- https://cve.org/CVERecord?id=CVE-2025-68353
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-68353.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-68353
- Downstream
- Related
- Published
- 2025-12-24T10:32:44Z
- Modified
- 2026-08-12T03:30:40Z
- Summary
- net: vxlan: prevent NULL deref in vxlan_xmit_one
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: vxlan: prevent NULL deref in vxlan_xmit_one
Neither sock4 nor sock6 pointers are guaranteed to be non-NULL in vxlan_xmit_one, e.g. if the iface is brought down. This can lead to the following NULL dereference:
BUG: kernel NULL pointer dereference, address: 0000000000000010 Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:vxlan_xmit_one+0xbb3/0x1580 Call Trace: vxlan_xmit+0x429/0x610 dev_hard_start_xmit+0x55/0xa0 __dev_queue_xmit+0x6d0/0x7f0 ip_finish_output2+0x24b/0x590 ip_output+0x63/0x110
Mentioned commits changed the code path in vxlan_xmit_one and as a side effect the sock4/6 pointer validity checks in vxlan(6)_get_route were lost. Fix this by adding back checks.
Since both commits being fixed were released in the same version (v6.7) and are strongly related, bundle the fixes in a single commit.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68353.json" }- References
-
- https://git.kernel.org/stable/c/1f73a56f986005f0bc64ed23873930e2ee4f5911
- https://git.kernel.org/stable/c/4ac26aafdc8c7271414e2e7c0b2cb266a26591bc
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68353.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68353
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git