Login Request a demo
Critical severity · published Dec 16, 2025
CVE-2025-68192
net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: qmi_wwan: initialize MAC header offset in qmimux_rx_fixup Raw IP packets have no MAC header, leaving skb->mac_header uninitialized. This can trigger kernel panics on ARM64 when xfrm or other subsystems access the offset due to strict alignment checks. Initialize the MAC header to prevent such crashes. This can trigger kernel panics on ARM when running IPsec over the qmimux0 interface. Example trace: Internal error: Oops: 000000009600004f [#1] SMP CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.34-gbe78e49cb433 #1 Hardware name: LS1028A RDB Board (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : xfrm_input+0xde8/0x1318 lr : xfrm_input+0x61c/0x1318 sp : ffff800080003b20 Call trace: xfrm_input+0xde8/0x1318 xfrm6_rcv+0x38/0x44 xfrm6_esp_rcv+0x48/0xa8 ip6_protocol_deliver_rcu+0x94/0x4b0 ip6_input_finish+0x44/0x70 ip6_input+0x44/0xc0 ipv6_rcv+0x6c/0x114 __netif_receive_skb_one_core+0x5c/0x8c __netif_receive_skb+0x18/0x60 process_backlog+0x78/0x17c __napi_poll+0x38/0x180 net_rx_action+0x168/0x2f0
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
c6adf77953bcec0ad63d7782479452464e50f7a3 before d693c47fb902b988f5752182e4f7fbde5e6dcaf9; c6adf77953bcec0ad63d7782479452464e50f7a3 before 0aabccdcec1f4a36f95829ea2263f845bbc77223; c6adf77953bcec0ad63d7782479452464e50f7a3 before 4e6b9004f01d0fef5b19778399bc5bf55f8c2d71; c6adf77953bcec0ad63d7782479452464e50f7a3 before bf527b80b80a282ab5bf1540546211fc35e5cd42; c6adf77953bcec0ad63d7782479452464e50f7a3 before dd03780c29f87c26c0e0bb7e0db528c8109461fb; c6adf77953bcec0ad63d7782479452464e50f7a3 before ae811175cea35b03ac6d7c910f43a82a43b9c3b3; +3 more · source: vendor
Affected product
LI
Linux
Linux
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68192
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-68192
git.kernel.org
https://git.kernel.org/stable/c/0aabccdcec1f4a36f95829ea2263f845bbc77223
git.kernel.org
https://git.kernel.org/stable/c/4e6b9004f01d0fef5b19778399bc5bf55f8c2d71
git.kernel.org
https://git.kernel.org/stable/c/8ab3b8f958d861a7f725a5be60769106509fbd69
git.kernel.org
https://git.kernel.org/stable/c/ae811175cea35b03ac6d7c910f43a82a43b9c3b3
git.kernel.org
https://git.kernel.org/stable/c/bf527b80b80a282ab5bf1540546211fc35e5cd42
git.kernel.org
https://git.kernel.org/stable/c/d693c47fb902b988f5752182e4f7fbde5e6dcaf9
More from Linux
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
7.8
CVE-2026-53362
ipv6: account for fraggap on the paged allocation path
7.8
CVE-2026-31431
crypto: algif_aead - Revert to operating out-of-place
7.8
CVE-2025-38352
posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()