USN-8476-1: xrdp vulnerabilities

It was discovered that xrdp incorrectly handled bounds checking when processing user domain information during the connection sequence. An unauthenticated remote attacker could use this issue to cause xrdp to crash, resulting in a denial of service, or possibly execute arbitrary code...

CVE-2026-53265

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de "dm cache policy smq: fix missing locks in invalidating cache blocks" added mq-lock around the destructive part of smqinvalidatemapping, but left the...

CVE-2026-53250

In the Linux kernel, the following vulnerability has been resolved: xsk: cache csumstart/csumoffset to fix TOCTOU in xskskbmetadata The TX metadata area resides in the UMEM buffer which is memory-mapped and concurrently writable by userspace. In xskskbmetadata, csumstart and csumoffset are read...

CVE-2026-53246

In the Linux kernel, the following vulnerability has been resolved: sctp: validate cached peer INIT chunk length in COOKIEECHO processing When a listening SCTP server processes a COOKIEECHO chunk, the cached peer INIT chunk embedded after the cookie is parsed and its parameters are later walked b...

CVE-2026-53236

In the Linux kernel, the following vulnerability has been resolved: tcp: restrict SOATTACHFILTER to priv users This patch restricts the use of SOATTACHFILTER cBPF on TCP sockets to users with CAPNETADMIN capability. This blocks potential side-channel attack where an unprivileged application...

CVE-2026-53206

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add bounds check for firmware runtime memory Validate that the firmware runtime memory specified in the image header is properly aligned and sized to hold the firmware image. This prevents errors during memory...

CVE-2026-53213

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: fix krealloc memory leak Don't just overwrite the original pointer passed to krealloc with its return value without checking latter: MEM = kreallocMEM, SZ, GFP; If krealloc returns NULL, that erases the pointer to the...

CVE-2026-53186

In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: bound SRPRSP sense copy by the received length srpprocessrsp copies sense data from rsp-data + respdatalen, where respdatalen is the full 32-bit value supplied by the SRP target and is never checked against the number o...

CVE-2026-53182

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject oversized EMA RNR lists nl80211parsernrelems stores the parsed element count in a u8-backed cfg80211rnrelems::cnt field and uses that count to size the flexible array allocation. Reject nested...

AZL-90315 CVE-2026-53178 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: rtwmlme: add bounds checks before ielength subtraction Add guards to ensure ielength is large enough before subtracting fixed IE offsets to prevent unsigned integer underflow...

CVE-2026-53149

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size tbpropertyparsedir does not check that contentoffset + contentlen fits within blocklen for the root directory case. When rootdir-length equals or exceeds blocklen - 2, the...

CVE-2026-53142

In the Linux kernel, the following vulnerability has been resolved: drm/xe/display: fix oops in suspend/shutdown without display The xe driver keeps track of whether to probe display, and whether display hardware is there, using xe-info.probedisplay. It gets set to false if there's no display aft...

CVE-2026-53134

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftfib: fix stale stack leak via the OIFNAME register For NFTFIBRESULTOIFNAME the destination register is declared with len = IFNAMSIZ four 32-bit registers, but on the lookup-fail, RTNLOCAL and oif-mismatch paths...

UBUNTU-CVE-2026-53265

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de "dm cache policy smq: fix missing locks in invalidating cache blocks" added mq-lock around the destructive part of smqinvalidatemapping, but left the...

UBUNTU-CVE-2026-53206

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add bounds check for firmware runtime memory Validate that the firmware runtime memory specified in the image header is properly aligned and sized to hold the firmware image. This prevents errors during memory...

CVE-2026-53206

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add bounds check for firmware runtime memory Validate that the firmware runtime memory specified in the image header is properly aligned and sized to hold the firmware image. This prevents errors during memory...

UBUNTU-CVE-2026-53195

In the Linux kernel, the following vulnerability has been resolved: USB: serial: ioti: fix heap overflow in buildi2cfwhdr buildi2cfwhdr allocates a fixed-size buffer of 161024 - 512 + sizeofstruct tii2cfirmwarerec bytes, then copies le16tocpuimgheader-Length bytes into it without validating that...

CVE-2026-53246

In the Linux kernel, the following vulnerability has been resolved: sctp: validate cached peer INIT chunk length in COOKIEECHO processing When a listening SCTP server processes a COOKIEECHO chunk, the cached peer INIT chunk embedded after the cookie is parsed and its parameters are later walked b...

CVE-2026-53170

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: reject DMA commands with uninitialized length cmdstateinit initializes the command state with memset0xff, leaving dma-len at U64MAX to signal missing setup. The only setter is NPUSETDMA0LEN; if userspace omits this...

UBUNTU-CVE-2026-53149

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size tbpropertyparsedir does not check that contentoffset + contentlen fits within blocklen for the root directory case. When rootdir-length equals or exceeds blocklen - 2, the...