In the Linux kernel, the following vulnerability has been resolved:
nfc: pn533: allocate rx skb before consuming bytes
pn532_receive_buf() reports the number of accepted bytes to the serdev
core. The current code consumes bytes into recv_skb and may already hand
a complete frame to pn533_recv_frame() before allocating a fresh receive
buffer.
If that alloc_skb() fails, the callback returns 0 even though it has
already consumed bytes, and it leaves recv_skb as NULL for the next
receive callback. That breaks the receive_buf() accounting contract and
can also lead to a NULL dereference on the next skb_put_u8().
Allocate the receive skb lazily before consuming the next byte instead.
If allocation fails, return the number of bytes already accepted.
References
Configurations
Configuration 1 (hide)
|
History
27 Apr 2026, 20:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/07cb6c72e66ba548679f22ac29ad588da8999279 - Patch | |
| References | () https://git.kernel.org/stable/c/16649adc2e19509104245ea1f349b629d858f11f - Patch | |
| References | () https://git.kernel.org/stable/c/21ae2cda66a55c759607bbf1d23cbaa42019d2de - Patch | |
| References | () https://git.kernel.org/stable/c/2ca64fb7e2d2ae14619dd204d4f2f0a601f421fb - Patch | |
| References | () https://git.kernel.org/stable/c/7e37da42eda45d7859d9273fc7e225d8df458038 - Patch | |
| References | () https://git.kernel.org/stable/c/8b71299d587d9e4c830c18afb884c80ddb30ad28 - Patch | |
| References | () https://git.kernel.org/stable/c/a9495069b43b8634c1ae0042e888766c34f66637 - Patch | |
| References | () https://git.kernel.org/stable/c/c71ba669b570c7b3f86ec875be222ea11dacb352 - Patch | |
| CWE | NVD-CWE-Other | |
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.5:-:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux
Linux linux Kernel |
24 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-24 15:16
Updated : 2026-06-17 10:34
NVD link : CVE-2026-31660
Mitre link : CVE-2026-31660
CVE.ORG link : CVE-2026-31660
JSON object : View
Products Affected
linux
- linux_kernel
CWE