Hello:
This patch was applied to netdev/net.git (main) by Paolo Abeni pabeni@redhat.com:
On Thu, 25 Sep 2025 18:58:46 +0530 you wrote:
Syzbot reported an uninitialized value bug in nci_init_req, which was introduced by commit 5aca7966d2a7 ("Merge tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools").
This bug arises due to very limited and poor input validation that was done at nic_valid_size(). This validation only validates the skb->len (directly reflects size provided at the userspace interface) with the length provided in the buffer itself (interpreted as NCI_HEADER). This leads to the processing of memory content at the address assuming the correct layout per what opcode requires there. This leads to the accesses to buffer of `skb_buff->data` which is not assigned anything yet.
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Here is the summary with links: - [net,v4] net: nfc: nci: Add parameter validation for packet data https://git.kernel.org/netdev/net/c/9c328f54741b
You are awesome, thank you!