netfilter: nft_exthdr: fix register tracking for F_PRESENT flag

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CVE-2026-53218

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftexthdr: fix register tracking for FPRESENT flag nftexthdrinit passes user-controlled priv-len to nftparseregisterstore, which marks that many bytes in the register bitmap as initialized. However, when...

CVE-2026-53218

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftexthdr: fix register tracking for FPRESENT flag nftexthdrinit passes user-controlled priv-len to nftparseregisterstore, which marks that many bytes in the register bitmap as initialized. However, when...

CVE-2026-53218

CVE-2026-53218 affects the Linux kernel netfilter nft_exthdr path. The root cause is a mismatch in register initialization: nft_exthdr_init() passes priv->len to nft_parse_register_store(), which marks that many bytes as initialized, but when NFT_EXTHDR_F_PRESENT is set the eval paths write on...

CVE-2026-53218

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftexthdr: fix register tracking for FPRESENT flag nftexthdrinit passes user-controlled priv-len to nftparseregisterstore, which marks that many bytes in the register bitmap as initialized. However, when...

CVE-2026-53218 netfilter: nft_exthdr: fix register tracking for F_PRESENT flag

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftexthdr: fix register tracking for FPRESENT flag nftexthdrinit passes user-controlled priv-len to nftparseregisterstore, which marks that many bytes in the register bitmap as initialized. However, when...

PT-2026-52313

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netfilter module where the nft exthdr init function passes a user-controlled priv-len variable to nft parse register store, which marks a specific number of bytes ...

PT-2023-3704 · Amd +9 · Amd Ryzen +10

Name of the Vulnerable Software and Affected Versions: AMD Zen 2 processors affected versions not specified Description: The issue in AMD Zen 2 processors, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information. This is due to a...

Scemu - X86 32bits Emulator, For Securely Emulating Shellcodes

x86 32bits emulator, for securely emulating shellcodes. Features  rust safety, good for malware. All dependencies are in rust. zero unsafe blocks. very fast emulation much faster than unicorn 3,000,000 instructions/second 100,000 instructions/second printing every instruction -vv. powered by...