In the Linux kernel, the following vulnerability has been resolved:
net: wwan: t7xx: Fix napi rx poll issue
When driver handles the napi rx polling requests, the netdev might
have been released by the dellink logic triggered by the disconnect
operation on user plane. However, in the logic of processing skb in
polling, an invalid netdev is still being used, which causes a panic.
BUG: kernel NULL pointer dereference, address: 00000000000000f1
Oops: 0000 [#1] PREEMPT SMP NOPTI
RIP: 0010:dev_gro_receive+0x3a/0x620
[...]
Call Trace:
<IRQ>
? __die_body+0x68/0xb0
? page_fault_oops+0x379/0x3e0
? exc_page_fault+0x4f/0xa0
? asm_exc_page_fault+0x22/0x30
? __pfx_t7xx_ccmni_recv_skb+0x10/0x10 [mtk_t7xx (HASH:1400 7)]
? dev_gro_receive+0x3a/0x620
napi_gro_receive+0xad/0x170
t7xx_ccmni_recv_skb+0x48/0x70 [mtk_t7xx (HASH:1400 7)]
t7xx_dpmaif_napi_rx_poll+0x590/0x800 [mtk_t7xx (HASH:1400 7)]
net_rx_action+0x103/0x470
irq_exit_rcu+0x13a/0x310
sysvec_apic_timer_interrupt+0x56/0x90
</IRQ>
References
Configurations
Configuration 1 (hide)
|
History
20 Nov 2025, 21:33
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/66542e9430c625f878a5b5dc0fe41e3458d614bf - Patch | |
| References | () https://git.kernel.org/stable/c/905fe0845bb27e4eed2ca27ea06e6c4847f1b2b1 - Patch | |
| References | () https://git.kernel.org/stable/c/cc89f457d9133a558d4e8ef26dc20843c2d12073 - Patch | |
| References | () https://git.kernel.org/stable/c/e2df04e69c3f10b412f54be036dd0ed3b14756cf - Patch |
Information
Published : 2025-07-03 09:15
Updated : 2025-11-20 21:33
NVD link : CVE-2025-38123
Mitre link : CVE-2025-38123
CVE.ORG link : CVE-2025-38123
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference