Tracker / CVE-2026-31660
CVE-2026-31660
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.
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.203 |
| linux | linux_kernel · 5.16 → 6.1.169 |
| linux | linux_kernel · 5.5.1 → 5.10.253 |
| linux | linux_kernel · 6.13 → 6.18.23 |
| linux | linux_kernel · 6.19 → 6.19.13 |
| linux | linux_kernel · 6.2 → 6.6.135 |
| linux | linux_kernel · 6.7 → 6.12.82 |