Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: RDMA/mana: Remove user triggerable WARNON in manaibcreateqprss CVE-2026-46117 kernel: Bluetooth: l2cap: Add missing chan lock in l2capecredreconfrsp CVE-2026-53071 Bug Fixes and...

Linux Distros Unpatched Vulnerability : CVE-2026-64034

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: mana: Fix TOCTOU double-fetch of hwcmsgid from DMA buffer In manahwcrxeventhandler, resp-response.hwcmsgid is read from DMA-coherent memory and...

Linux Distros Unpatched Vulnerability : CVE-2026-63973

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: mana: Add NULL guards in teardown path to prevent panic on attach failure When queue allocation fails partway through, the error cleanup frees and NULLs...

Linux Distros Unpatched Vulnerability : CVE-2026-63972

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net: mana: Skip redundant detach on already-detached port When...

Linux Distros Unpatched Vulnerability : CVE-2026-64018

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In...

CVE-2026-64034

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix TOCTOU double-fetch of hwcmsgid from DMA buffer In manahwcrxeventhandler, resp-response.hwcmsgid is read from DMA-coherent memory and bounds-checked, then manahwchandleresp re-reads the same field from the same DMA...

CVE-2026-64018

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

CVE-2026-63972

In the Linux kernel, the following vulnerability has been resolved: net: mana: Skip redundant detach on already-detached port When manaperportqueueresetworkhandler runs after a previous detach succeeded but attach failed, the port is left in a detached state with apc-txqp and apc-rxqs already...

CVE-2026-63973

In the Linux kernel, the following vulnerability has been resolved: net: mana: Add NULL guards in teardown path to prevent panic on attach failure When queue allocation fails partway through, the error cleanup frees and NULLs apc-txqp and apc-rxqs. Multiple teardown paths such as manaremove,...

CVE-2026-64034 net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix TOCTOU double-fetch of hwcmsgid from DMA buffer In manahwcrxeventhandler, resp-response.hwcmsgid is read from DMA-coherent memory and bounds-checked, then manahwchandleresp re-reads the same field from the same DMA...

CVE-2026-64034

The CVE concerns the Linux kernel net: mana TOCTOU in hwc_msg_id handling. In mana_hwc_rx_event_handler(), resp->response.hwc_msg_id is read from DMA-coherent memory and bounds-checked, then mana_hwc_handle_resp() re-reads the same field from the same DMA buffer for test_bit() and pointer arit...

CVE-2026-64034 net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix TOCTOU double-fetch of hwcmsgid from DMA buffer In manahwcrxeventhandler, resp-response.hwcmsgid is read from DMA-coherent memory and bounds-checked, then manahwchandleresp re-reads the same field from the same DMA...

CVE-2026-64018 net: mana: validate rx_req_idx to prevent out-of-bounds array access

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

CVE-2026-64018

The Linux kernel vulnerability CVE-2026-64018 affects net: mana: validate rx_req_idx to prevent out-of-bounds array access. Root cause: mana_hwc_rx_event_handler() uses rx_req_idx derived from sge->address in DMA-coherent memory, and in Confidential VMs (SEV-SNP/TDX) this memory is shared unen...

EUVD-2026-45591

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

CVE-2026-64018

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

CVE-2026-64018 net: mana: validate rx_req_idx to prevent out-of-bounds array access

In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rxreqidx to prevent out-of-bounds array access In manahwcrxeventhandler, rxreqidx is derived from sge-address in DMA-coherent memory. In Confidential VMs SEV-SNP/TDX, this memory is shared unencrypted and HW c...

CVE-2026-63973

Concrete details found: Linux kernel net: mana module added NULL guards in teardown paths to prevent panics when attach fails. The fix protects against dereferencing apc->rxqs and apc->tx_qp after partial queue allocation failures. Affected functions and behavior: mana_chn_setxdp() now chec...

CVE-2026-63973 net: mana: Add NULL guards in teardown path to prevent panic on attach failure

In the Linux kernel, the following vulnerability has been resolved: net: mana: Add NULL guards in teardown path to prevent panic on attach failure When queue allocation fails partway through, the error cleanup frees and NULLs apc-txqp and apc-rxqs. Multiple teardown paths such as manaremove,...

CVE-2026-63973 net: mana: Add NULL guards in teardown path to prevent panic on attach failure

In the Linux kernel, the following vulnerability has been resolved: net: mana: Add NULL guards in teardown path to prevent panic on attach failure When queue allocation fails partway through, the error cleanup frees and NULLs apc-txqp and apc-rxqs. Multiple teardown paths such as manaremove,...