EUVD-2026-66499

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qethsnmpcommand and qethl3arpquery allocate a buffer sized by a user-supplied length udatalen without checking a lower bound, then set udataoffset to a fixed...

CVE-2026-80584

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qethsnmpcommand and qethl3arpquery allocate a buffer sized by a user-supplied length udatalen without checking a lower bound, then set udataoffset to a fixed...

CVE-2026-80584 s390/qeth: validate user buffer length in SNMP and ARP query ioctls

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qethsnmpcommand and qethl3arpquery allocate a buffer sized by a user-supplied length udatalen without checking a lower bound, then set udataoffset to a fixed...

CVE-2026-80584

CVE-2026-80584 is a heap buffer overflow in the Linux kernel's s390/qeth network driver, affecting the qeth_snmp_command() and qeth_l3_arp_query() ioctls. The root cause is an unsigned integer underflow: a user-supplied udata_len smaller than the fixed non-zero udata_offset causes the bounds-chec...

PT-2026-82200

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description An issue exists in the s390/qeth component where the qeth snmp command and qeth l3 arp query functions allocate a buffer based on a user-supplied length udata len without verifying a low...