CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

UBUNTU-CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

UBUNTU-CVE-2026-89573

In the Linux kernel, the following vulnerability has been resolved: dm array: reject an array block whose value size is not the caller's arrayblockcheck can only compare the header against itself, so a block with valuesize 4 and maxentries 1018 is internally consistent and passes. dm-cache keeps...

CVE-2026-89760

In the Linux kernel, the following vulnerability has been resolved: mm, swap: don't free a hibernation slot that is in the swap cache A slot with a folio in the swap cache is freed when the folio leaves the cache, not when its count drops. swapputentriescluster follows that rule...

EUVD-2026-76672

In the Linux kernel, the following vulnerability has been resolved: mm, swap: don't free a hibernation slot that is in the swap cache A slot with a folio in the swap cache is freed when the folio leaves the cache, not when its count drops. swapputentriescluster follows that rule...

CVE-2026-89760 mm, swap: don't free a hibernation slot that is in the swap cache

In the Linux kernel, the following vulnerability has been resolved: mm, swap: don't free a hibernation slot that is in the swap cache A slot with a folio in the swap cache is freed when the folio leaves the cache, not when its count drops. swapputentriescluster follows that rule...

CVE-2026-89760

CVE-2026-89760 is a Linux kernel vulnerability in the mm/swap subsystem where swap_free_hibernation_slot() incorrectly frees a hibernation slot while a folio still resides in the swap cache. When cluster readahead places a folio on a hibernation slot, freeing the slot clears the swap table entry ...

CVE-2026-89639

In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...

CVE-2026-89639 cifs: use cifs_invalidate_cache() in cifs_do_truncate() for O_TRUNC

In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...

CVE-2026-89639 cifs: use cifs_invalidate_cache() in cifs_do_truncate() for O_TRUNC

In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...

CVE-2026-89574

In the Linux kernel, the following vulnerability has been resolved: dm array: validate array block headers on read arrayblockcheck validates blocknr and csum and nothing else, while nodecheck, next to it, has bounded the structural fields since both were written. dmarraycursornext takes its loop...

CVE-2026-89573 dm array: reject an array block whose value size is not the caller's

In the Linux kernel, the following vulnerability has been resolved: dm array: reject an array block whose value size is not the caller's arrayblockcheck can only compare the header against itself, so a block with valuesize 4 and maxentries 1018 is internally consistent and passes. dm-cache keeps...

CVE-2026-89573 dm array: reject an array block whose value size is not the caller's

In the Linux kernel, the following vulnerability has been resolved: dm array: reject an array block whose value size is not the caller's arrayblockcheck can only compare the header against itself, so a block with valuesize 4 and maxentries 1018 is internally consistent and passes. dm-cache keeps...

CVE-2026-89573

A local out-of-bounds read in the Linux kernel's device mapper (dm) array component allows memory corruption via crafted metadata . The root cause is that array_block_check() only validates a block's header against itself, so a 4-byte value_size block with max_entries 1018 passes as internally co...

EUVD-2026-76459

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: always drain cachecleaner before destroying a cachedetail sunrpcdestroycachedetail only cancels the global cachecleaner delayedwork when cachelist is empty. During per-netns teardown cachelist is never empty because...

CVE-2026-89487

CVE-2026-89487 affects the openvswitch subsystem in the Linux kernel. The bug resides in queue_userspace_packet(), whose error path calls skb_tx_error() on a packet that is still being forwarded through remaining flow actions. This call strips SKBFL_SHARED_FRAG from the live skb via skb_zcopy_cle...

EUVD-2026-76393

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...