UBUNTU-CVE-2026-64548

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: reject overflowing copy + len in bpfmsgpushdata When the scatterlist ring is full or nearly full, bpfmsgpushdata enters a copy fallback path and computes copy + len for the page allocation size. Since len comes from...

UBUNTU-CVE-2026-64547

In the Linux kernel, the following vulnerability has been resolved: net: usb: net1080: validate packetlen before pad-byte access in rxfixup For an even packetlen, net1080rxfixup reads the pad byte at skb-datapacketlen before the skb-len != packetlen check further down, and packetlen is only bound...

UBUNTU-CVE-2026-64550

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate MAP frame length before ingress parsing When ingress deaggregation is disabled, rmnetmapingresshandler passes the skb straight to rmnetmapingresshandler, skipping the length validation that...

CVE-2026-64550

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate MAP frame length before ingress parsing When ingress deaggregation is disabled, rmnetmapingresshandler passes the skb straight to rmnetmapingresshandler, skipping the length validation that...

UBUNTU-CVE-2026-64551

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

CVE-2026-64553 net: psample: fix info leak in PSAMPLE_ATTR_DATA

In the Linux kernel, the following vulnerability has been resolved: net: psample: fix info leak in PSAMPLEATTRDATA psample open codes nlaput presumably to avoid wiping the data with 0s just to override it with packet data. This open coding is missing clearing the pad, however, each netlink attr i...

CVE-2026-64552 virtio-net: fix len check in receive_big()

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

EUVD-2026-49602

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

CVE-2026-64551 sctp: validate STALE_COOKIE cause length before reading staleness

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

EUVD-2026-49603

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64552 virtio-net: fix len check in receive_big()

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64551

CVE-2026-64551 concerns the Linux kernel SCTP stack. A vulnerability in the handling of an ERROR chunk with a STALE_COOKIE cause in the COOKIE_ECHOED state can cause an out-of-bounds read: the code reads the 4-byte Measure of Staleness from after the cause header, but the staleness field may not ...

CVE-2026-64552

Summary (CVE-2026-64552) In the Linux kernel virtio-net, receive_big() does a length check against (big_packets_num_skbfrags + 1) * PAGE_SIZE, but a gap remains due to add_recvbuf_big() placing sg[1] after the padded vnet header. A malicious virtio backend can announce a length in that gap, causi...

CVE-2026-64551 sctp: validate STALE_COOKIE cause length before reading staleness

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

CVE-2026-64551

In the Linux kernel, the following vulnerability has been resolved: sctp: validate STALECOOKIE cause length before reading staleness When an ERROR chunk with a STALECOOKIE cause is received in the COOKIEECHOED state, sctpsfdo526stale reads the 4-byte Measure of Staleness that follows the cause...

CVE-2026-64552

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix len check in receivebig receivebig bounds the device-announced length by bigpacketsnumskbfrags + 1 PAGESIZE. That is still too loose: addrecvbufbig sets sg1 to start at offset sizeofstruct paddedvnethdr into the...

CVE-2026-64550

The CVE-2026-64550 entry concerns the Linux kernel Qualcomm rmnet component. The vulnerability arises when ingress deaggregation is disabled: rmnet_map_ingress_handler() forwards frames without length validation, causing the MAP header and checksum/trailer to be dereferenced based on on-wire pkt_...

CVE-2026-64550 net: qualcomm: rmnet: validate MAP frame length before ingress parsing

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate MAP frame length before ingress parsing When ingress deaggregation is disabled, rmnetmapingresshandler passes the skb straight to rmnetmapingresshandler, skipping the length validation that...

EUVD-2026-49601

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate MAP frame length before ingress parsing When ingress deaggregation is disabled, rmnetmapingresshandler passes the skb straight to rmnetmapingresshandler, skipping the length validation that...

CVE-2026-64550 net: qualcomm: rmnet: validate MAP frame length before ingress parsing

In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: validate MAP frame length before ingress parsing When ingress deaggregation is disabled, rmnetmapingresshandler passes the skb straight to rmnetmapingresshandler, skipping the length validation that...