CVE-2025-68353

Advisory lineage Upstream: 0 Downstream: 14
Deferred
Published: 24 Dec 2025, 10:32
Last modified:11 May 2026, 21:51

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Dec 2025, 10:32
Published
Vulnerability first disclosed
11 May 2026, 21:51
Last Modified
Vulnerability information updated

Description

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.

EPSS Trends

Current EPSS score: 0.03%• Percentile: 9%

Affected Systems

  • linux•linux

    ≥ 6f19b2c136d98a84d79030b53e23d405edfdc783, < 4ac26aafdc8c7271414e2e7c0b2cb266a26591bc | ≥ 6f19b2c136d98a84d79030b53e23d405edfdc783, < 1f73a56f986005f0bc64ed23873930e2ee4f5911 | 6.7

References (2)