In the Linux kernel, the following vulnerability has been resolved:
net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit()
The transmit loop in airoha_dev_xmit() reads fragment address and length
during its final iteration, when the loop index equals
skb_shinfo(skb)->nr_frags, at which point the fragment data is
uninitialized. While these values are never consumed, the read itself is
unsafe and may trigger a page fault. Fix this by avoiding the fragment
read on the last iteration.
Additionally, move the skb pointer from the first to the last used packet
descriptor, so that airoha_qdma_tx_napi_poll() defers freeing the skb
until the final descriptor is processed.
References
Configurations
Configuration 1 (hide)
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History
12 Nov 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| CWE | CWE-908 | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* |
|
| References | () https://git.kernel.org/stable/c/bde34e84edc8b5571fbde7e941e175a4293ee1eb - Patch | |
| References | () https://git.kernel.org/stable/c/d78c8ab7bd84952e053d0c622b7fc1b4ad8a19a3 - Patch | |
| References | () https://git.kernel.org/stable/c/dba5f4959653e4c212beb746594952e8645d1115 - Patch | |
| References | () https://git.kernel.org/stable/c/f670fa4b19ceddc6d215dda4997888ccba9bbc61 - Patch |
21 Oct 2026, 13:19
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Information
Published : 2026-07-19 15:16
Updated : 2026-11-12 15:16
NVD link : CVE-2026-63857
Mitre link : CVE-2026-63857
CVE.ORG link : CVE-2026-63857
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-908
Use of Uninitialized Resource