UBUNTU-CVE-2026-80640

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix fortifypanic Fix a runtime assertion in cxlctlgetsupportedfeatures. Fortify complains that it is potentially overflowing the entries array per countedbylenumentries. Quiet the false positive by initializing...

CVE-2026-80639

In the Linux kernel, the following vulnerability has been resolved: cxl/test: Fix fortifypanic Fix a runtime assertion in setupxormapping. Fortify complains that it is potentially overflowing the xormaps array per countedbynrmaps. Quiet the false positive by initializing @nrmaps earlier. memcpy:...

CVE-2026-80615

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

UBUNTU-CVE-2026-80615

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

EUVD-2026-67515

In the Linux kernel, the following vulnerability has been resolved: cxl/test: Fix fortifypanic Fix a runtime assertion in setupxormapping. Fortify complains that it is potentially overflowing the xormaps array per countedbynrmaps. Quiet the false positive by initializing @nrmaps earlier. memcpy:...

CVE-2026-80640

CVE-2026-80640 affects the CXL firmware control (fwctl) subsystem of the Linux kernel . The root cause is in cxlctl_get_supported_features(), where num_entries is not initialized early enough, causing the kernel's Fortify runtime protection to detect a potential 48-byte write to a zero-size buffe...

CVE-2026-80639 cxl/test: Fix __fortify_panic

In the Linux kernel, the following vulnerability has been resolved: cxl/test: Fix fortifypanic Fix a runtime assertion in setupxormapping. Fortify complains that it is potentially overflowing the xormaps array per countedbynrmaps. Quiet the false positive by initializing @nrmaps earlier. memcpy:...

CVE-2026-80640 cxl/fwctl: Fix __fortify_panic

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix fortifypanic Fix a runtime assertion in cxlctlgetsupportedfeatures. Fortify complains that it is potentially overflowing the entries array per countedbylenumentries. Quiet the false positive by initializing...

CVE-2026-80639

CVE-2026-80639 affects the Linux kernel 's cxl/test module (loaded as cxl_translate). The issue is in setup_xor_mapping(), where the Fortify overflow detector reported a potential 32-byte write to a zero-size buffer for the xormaps array, due to the __counted_by(nr_maps) annotation seeing nr_maps...

EUVD-2026-67516

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix fortifypanic Fix a runtime assertion in cxlctlgetsupportedfeatures. Fortify complains that it is potentially overflowing the entries array per countedbylenumentries. Quiet the false positive by initializing...

CVE-2026-80640 cxl/fwctl: Fix __fortify_panic

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix fortifypanic Fix a runtime assertion in cxlctlgetsupportedfeatures. Fortify complains that it is potentially overflowing the entries array per countedbylenumentries. Quiet the false positive by initializing...

CVE-2026-80615

CVE-2026-80615 affects the Linux kernel net: dst_metadata subsystem. In metadata_dst_alloc(), kmalloc_flex() sets the __counted_by annotation to options_len, which is initialized to zero . When skb_tunnel_info_unclone later copies tunnel info plus options into the structure, clang with source for...

CVE-2026-80615 net: dst_metadata: fix false-positive memcpy overflow in tun_dst_unclone

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

EUVD-2026-67491

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

CVE-2026-80615 net: dst_metadata: fix false-positive memcpy overflow in tun_dst_unclone

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

CVE-2026-80615

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

CVE-2026-80640: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix fortifypanic Fix a runtime assertion in cxlctlgetsupportedfeatures. Fortify complains that it is potentially overflowing the entries array per countedbylenumentries. Quiet the false positive by initializing...

CVE-2026-80639: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: cxl/test: Fix fortifypanic Fix a runtime assertion in setupxormapping. Fortify complains that it is potentially overflowing the xormaps array per countedbynrmaps. Quiet the false positive by initializing @nrmaps earlier. memcpy:...

CVE-2026-80615: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

PT-2026-82915

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A false-positive memcpy overflow occurs in the tun dst unclone function within the dst metadata component. When built with clang and source fortification, the compiler incorrectly...