FEDORA-2026-9b1af4c793
Packages in this update:
Update description:
update to xen 4.20.4
includes security fixes
x86 shadow paging is deprecated [XSA-495, CVE-2026-42493]
vIRQ event channel binding may break Xenstore [XSA-496, CVE-2026-42492]
buffer overruns in libfsimage iso9660 handling [XSA-497, CVE-2026-42494,
CVE-2026-42495, CVE-2026-62423, CVE-2026-62424, CVE-2026-62425]
sysctl and platform-op locks open to abuse [XSA-499, CVE-2026-62426,
CVE-2026-62427]
grant-table: type confusion in grant-copy [XSA-500, CVE-2026-62428]
grant-table: version change racing with other operations [XSA-501,
CVE-2026-62435, CVE-2026-62436]
vNUMA domain cleanup may race other operations [XSA-502, CVE-2026-62429]
x86: Out-of-bounds read in vRTC emulation [XSA-503, CVE-2026-62430]
Viridian STIMER division by zero [XSA-504, CVE-2026-62431]
evtchn: Race between FIFO expand and reset [XSA-505, CVE-2026-62432]
correct buffer checks for DM_OP hypercalls [XSA-506, CVE-2026-62433]
PoD: Don't try to reclaim special pages [XSA-507, CVE-2026-62434]
pygrub is only supported in de-privileged mode [XSA-508]
x86 HVM I/O port list traversal [XSA-491, CVE-2026-42487]
domctl lock open to abuse [XSA-492, CVE-2026-42489, CVE-2026-42490]
Arm: Completion of memory accesses not guaranteed by completion of a TLBI
[XSA-493, CVE-2025-10263]
x86: mismatched mapcache metadata [XSA-494, CVE-2026-42488]