UBUNTU-CVE-2026-64418

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinkerinfo teardown race with expansion expandshrinkerinfo iterates all visible memcgs under shrinkermutex, including memcgs that have not finished -cssonline yet. Once pn-shrinkerinfo has been published,...

CVE-2026-64520

In the Linux kernel, the following vulnerability has been resolved: firmware: armffa: Bound PARTITIONINFOGETREGS copies The register-based PARTITIONINFOGET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index...

EUVD-2026-48864

In the Linux kernel, the following vulnerability has been resolved: firmware: armffa: Bound PARTITIONINFOGETREGS copies The register-based PARTITIONINFOGET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index...

CVE-2026-64520

In the Linux kernel, the following vulnerability has been resolved: firmware: armffa: Bound PARTITIONINFOGETREGS copies The register-based PARTITIONINFOGET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index...

CVE-2026-64520 firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies

In the Linux kernel, the following vulnerability has been resolved: firmware: armffa: Bound PARTITIONINFOGETREGS copies The register-based PARTITIONINFOGET path trusted the firmware-provided indices when copying partition descriptors into the caller buffer. Reject inconsistent counts or index...

CVE-2026-64520

In the Linux kernel, the ARM Firmware Framework Architecture (arm_ffa) PARTITION_INFO_GET_REGS path incorrectly trusted firmware-provided indices when copying partition descriptors into the caller buffer. The copy loop could write beyond the allocated array when counts/index progressions were inc...

CVE-2026-64465 usb: xhci: Fix sleep in atomic context in xhci_free_streams()

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Fix sleep in atomic context in xhcifreestreams When a USB device with active stream endpoints is disconnected, xhcifreestreams is called from the hubevent workqueue to free the stream resources. It calls...

EUVD-2026-48803

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

CVE-2026-64459

In the Linux kernel, the following vulnerability has been resolved: tcp: restore RCU grace period in tcpaodestroysock Commit 51e547e8c89c "tcp: Free TCP-AO/TCP-MD5 info/keys without RCU" removed the callrcu callback from tcpaodestroysock, arguing that "the destruction of info/keys is delayed unti...

EUVD-2026-48801

In the Linux kernel, the following vulnerability has been resolved: virtiopci: fix vq info pointer lookup via wrong index Unbinding a virtio balloon device: echo virtio0 /sys/bus/virtio/drivers/virtioballoon/unbind triggers a NULL pointer dereference. The dmesg says: BUG: kernel NULL pointer...

CVE-2026-64457

In the Linux kernel, the following vulnerability has been resolved: virtiopci: fix vq info pointer lookup via wrong index Unbinding a virtio balloon device: echo virtio0 /sys/bus/virtio/drivers/virtioballoon/unbind triggers a NULL pointer dereference. The dmesg says: BUG: kernel NULL pointer...

CVE-2026-64457 virtio_pci: fix vq info pointer lookup via wrong index

In the Linux kernel, the following vulnerability has been resolved: virtiopci: fix vq info pointer lookup via wrong index Unbinding a virtio balloon device: echo virtio0 /sys/bus/virtio/drivers/virtioballoon/unbind triggers a NULL pointer dereference. The dmesg says: BUG: kernel NULL pointer...

CVE-2026-64457

The CVE-2026-64457 issue affects the Linux kernel’s virtio_pci subsystem. When unbinding a virtio balloon device (e.g., echo virtio0 > /sys/bus/virtio/drivers/virtio_balloon/unbind), a NULL pointer dereference can occur due to a mismatch between sparse queue indices and dense queue indices (ho...

EUVD-2026-48787

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in updatebeaconinfo IE loop The IE parsing loop in updatebeaconinfo advances by pIE-length + 2 each iteration but only guards on i length from one byte past the allocated receive buffer...

CVE-2026-64443

Summary (CVE-2026-64443): Linux kernel staging: rtl8723bs vulnerable in the update_beacon_info() IE loop, where parsing of IEs could read beyond the received frame. The loop advances by (pIE->length + 2) but only guards on i length extending beyond len. The fix adds two guards at the top of th...

CVE-2026-64443

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB read in updatebeaconinfo IE loop The IE parsing loop in updatebeaconinfo advances by pIE-length + 2 each iteration but only guards on i length from one byte past the allocated receive buffer...

CVE-2026-64418

CVE-2026-64418 is a Linux kernel memory-management race in the shrinker subsystem. The vulnerability arises when the shrinker_info array is freed while still accessible, causing use-after-free or double-free. The root cause is that alloc_shrinker_info() can drop shrinker_mutex before finishing in...

CVE-2026-64418 mm: shrinker: fix shrinker_info teardown race with expansion

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinkerinfo teardown race with expansion expandshrinkerinfo iterates all visible memcgs under shrinkermutex, including memcgs that have not finished -cssonline yet. Once pn-shrinkerinfo has been published,...

CVE-2026-64418 mm: shrinker: fix shrinker_info teardown race with expansion

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinkerinfo teardown race with expansion expandshrinkerinfo iterates all visible memcgs under shrinkermutex, including memcgs that have not finished -cssonline yet. Once pn-shrinkerinfo has been published,...

CVE-2026-64394 ksmbd: add a WRITE_DAC/WRITE_OWNER check to SMB2 SET_INFO SECURITY

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a WRITEDAC/WRITEOWNER check to SMB2 SETINFO SECURITY commit cc57232cae23 "ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTLSETSPARSE" added a fp-daccess gate to fsctlsetsparse and noted that...