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CVE-2025-68353

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.
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < 4ac26aafdc8c7271414e2e7c0b2cb266a26591bc
Version 6f19b2c136d98a84d79030b53e23d405edfdc783
Status affected
Version < 1f73a56f986005f0bc64ed23873930e2ee4f5911
Version 6f19b2c136d98a84d79030b53e23d405edfdc783
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.7
Status affected
Version < 6.7
Version 0
Status unaffected
Version <= 6.18.*
Version 6.18.2
Status unaffected
Version <= *
Version 6.19-rc1
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.068
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.