CVE-2026-64574 wifi: mac80211: tear down new links on vif update error path

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: tear down new links on vif update error path When ieee80211vifupdatelinks adds new links it allocates a link container for each and calls ieee80211linkinit which registers the per-link debugfs files with...

EUVD-2026-53268

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: tear down new links on vif update error path When ieee80211vifupdatelinks adds new links it allocates a link container for each and calls ieee80211linkinit which registers the per-link debugfs files with...

CVE-2026-64574

CVE-2026-64574 affects the Linux kernel’s wifi mac80211 subsystem. When ieee80211_vif_update_links() adds new links and drv_change_vif_links() fails, new link debugfs entries may still point to freed memory, causing a use-after-free in ieee80211_if_read_link() and a potential local denial-of-serv...

CVE-2026-64572

CVE-2026-64572 affects the Linux kernel's IPv4 FIB path. In fib_table_insert(), new_fa is published to the leaf’s fa_list before notifiers run; if a notifier fails, the code removes new_fa via fib_remove_alias() and frees it with kmem_cache_free(). A concurrent, already-reached reader in fib_tabl...

EUVD-2026-53266

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: free fibalias with kfreercu on insert error path fibtableinsert publishes newfa into the leaf's falist with fibinsertalias before calling the fib entry notifiers. When a notifier fails, the error path removes newfa wit...

CVE-2026-64572 ipv4: fib: free fib_alias with kfree_rcu() on insert error path

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: free fibalias with kfreercu on insert error path fibtableinsert publishes newfa into the leaf's falist with fibinsertalias before calling the fib entry notifiers. When a notifier fails, the error path removes newfa wit...

CVE-2026-64570

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix filsdiscovery double free on alloc failure ieee80211setfilsdiscovery calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

EUVD-2026-53264

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix filsdiscovery double free on alloc failure ieee80211setfilsdiscovery calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

CVE-2026-64570 wifi: mac80211: fix fils_discovery double free on alloc failure

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix filsdiscovery double free on alloc failure ieee80211setfilsdiscovery calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

CVE-2026-64570 wifi: mac80211: fix fils_discovery double free on alloc failure

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix filsdiscovery double free on alloc failure ieee80211setfilsdiscovery calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

CVE-2026-64570

Summary: CVE-2026-64570 affects the Linux kernel’s wifi/mac80211 subsystem (FILS Discovery). A double-free can occur when updating a FILS Discovery template if a kzalloc() allocation fails; the old template is freed via kfree_rcu() before the replacement is published, risking a second free later ...

EUVD-2026-53262

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix unsolbcastproberesp double free on alloc failure ieee80211setunsolbcastproberesp calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

EUVD-2026-53261

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

CVE-2026-64568

CVE-2026-64568 is a Linux kernel vulnerability in the wireless stack (wifi/mac80211). The issue is a double free of the rcu_head object when updating the unsol_bcast_probe_resp template: ieee80211_set_unsol_bcast_probe_resp() frees the old object via kfree_rcu() before a new kzalloc() has complet...

CVE-2026-64567 btrfs: reject free space cache with more entries than pages

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

CVE-2026-64567

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

CVE-2026-64567 btrfs: reject free space cache with more entries than pages

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject free space cache with more entries than pages When loading a v1 free space cache, loadfreespacecache takes numentries and numbitmaps straight from the on-disk btrfsfreespaceheader. That header is stored in the...

CVE-2026-64568 wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix unsolbcastproberesp double free on alloc failure ieee80211setunsolbcastproberesp calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...

CVE-2026-64567

The CVE-2026-64567 vulnerability affects the Linux kernel’s btrfs free-space-cache loading. The issue stems from loading a v1 free-space cache where num_entries can exceed the available pages, allowing io_ctl_check_crc to advance past the end of the pages[] array. This leads to a slab-out-of-boun...

CVE-2026-64568 wifi: mac80211: fix unsol_bcast_probe_resp double free on alloc failure

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix unsolbcastproberesp double free on alloc failure ieee80211setunsolbcastproberesp calls kfreercu on the old template before allocating the replacement. If the kzalloc then fails, it returns -ENOMEM while...