In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.

In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.

In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.

ipv4: validate checksum_start before completing checksum

In the Linux kernel, the following vulnerability has been resolved: i ...

Уязвимость функции skb_checksum_help() реализации протокола IPv4 ядра операционной системы Linux, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

ELSA-2026-500399: Unbreakable Enterprise kernel security update (IMPORTANT)

ELSA-2026-500398: Unbreakable Enterprise kernel security update (IMPORTANT)

ELSA-2026-500397: Unbreakable Enterprise kernel security update (IMPORTANT)

Important: kernel security, bug fix, and enhancement update

Important: kernel security, bug fix, and enhancement update

Security update for the Linux Kernel