CVE-2026-74582

A flaw was found in the Linux kernel's packet handling functions, specifically packetsnd and packetsendmsgspkt. This vulnerability arises from inconsistent handling of network device header lengths during packet construction. A local attacker could exploit this by triggering a race condition duri...

CVE-2026-74581

A use-after-free vulnerability was found in the Linux kernel's IPv6 FIB rule lookup path. In fib6rulesuppress, when a route is suppressed and released via ip6rtputflags, the res-rt6 pointer is not cleared. If no later rule supplies a replacement route, fib6rulelookup returns the stale freed rt6in...

CVE-2026-74582

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in non-ring send paths packetsnd reads dev-hardheaderlen multiple times while allocating and constructing an skb. Device reconfiguration can change this value concurrently, for example through...

CVE-2026-74580

In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration vq-metaiotlb caches the vhostiotlbmap that backs each vring metadata region, and iotlbaccessok returns early on a cache hit, taking the hit as proof that the region h...

CVE-2026-74581

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6rulesuppress drops a suppressed route with ip6rtputflags, but leaves res-rt6 pointing at the released rt6info. If no later rule supplies a replacement, fib6rulelookup still sees...

CVE-2026-74583

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsroute: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4filter pointers indexed by id, iif. The reader route4classify populates this cache via...

CVE-2026-74582 packet: use consistent hard_header_len in non-ring send paths

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in non-ring send paths packetsnd reads dev-hardheaderlen multiple times while allocating and constructing an skb. Device reconfiguration can change this value concurrently, for example through...

CVE-2026-74583

CVE-2026-74583 is a use-after-free race condition in the Linux kernel's cls_route classifier (route4 fastmap cache). The route4_set_fastmap() reader can write a filter pointer into the 16-slot fastmap cache after a concurrent writer (route4_delete/route4_change) has already cleared it via route4_...

CVE-2026-74583

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsroute: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4filter pointers indexed by id, iif. The reader route4classify populates this cache via...

CVE-2026-74583 net/sched: cls_route: fix fastmap use-after-free on filter

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsroute: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4filter pointers indexed by id, iif. The reader route4classify populates this cache via...

EUVD-2026-64005

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsroute: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4filter pointers indexed by id, iif. The reader route4classify populates this cache via...

CVE-2026-74583 net/sched: cls_route: fix fastmap use-after-free on filter

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsroute: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4filter pointers indexed by id, iif. The reader route4classify populates this cache via...

EUVD-2026-64004

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in non-ring send paths packetsnd reads dev-hardheaderlen multiple times while allocating and constructing an skb. Device reconfiguration can change this value concurrently, for example through...

CVE-2026-74582

A race condition in the Linux kernel's packet socket layer affects the non-ring send paths in packet_snd() and packet_sendmsg_spkt(). Both functions read dev->hard_header_len multiple times during skb allocation and construction. If a concurrent device reconfiguration (e.g., a bonding type cha...

CVE-2026-74582 packet: use consistent hard_header_len in non-ring send paths

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in non-ring send paths packetsnd reads dev-hardheaderlen multiple times while allocating and constructing an skb. Device reconfiguration can change this value concurrently, for example through...

CVE-2026-74582

In the Linux kernel, the following vulnerability has been resolved: packet: use consistent hardheaderlen in non-ring send paths packetsnd reads dev-hardheaderlen multiple times while allocating and constructing an skb. Device reconfiguration can change this value concurrently, for example through...

EUVD-2026-64002

In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration vq-metaiotlb caches the vhostiotlbmap that backs each vring metadata region, and iotlbaccessok returns early on a cache hit, taking the hit as proof that the region h...

EUVD-2026-64003

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6rulesuppress drops a suppressed route with ip6rtputflags, but leaves res-rt6 pointing at the released rt6info. If no later rule supplies a replacement, fib6rulelookup still sees...

CVE-2026-74581 net: ipv6: clear suppressed fib6 rule result

In the Linux kernel, the following vulnerability has been resolved: net: ipv6: clear suppressed fib6 rule result fib6rulesuppress drops a suppressed route with ip6rtputflags, but leaves res-rt6 pointing at the released rt6info. If no later rule supplies a replacement, fib6rulelookup still sees...

CVE-2026-74580

In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration vq-metaiotlb caches the vhostiotlbmap that backs each vring metadata region, and iotlbaccessok returns early on a cache hit, taking the hit as proof that the region h...