{
  "cveId": "CVE-2025-68802",
  "url": "https://patchblox.com/security/cve/CVE-2025-68802",
  "summary": "CVE-2025-68802 is fixed in 18 products on 1 platform, first by DEBIAN-CVE-2025-68802, released January 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  drm/xe: Limit num_syncs to prevent oversized all...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/xe: Limit num_syncs to prevent oversized allocations  The exec and vm_bind ioctl allow userspace to specify an arbitrary num_syncs value. Without bounds checking, a very large num_syncs can force an excessively large allocation, leading to kernel warnings from the page allocator as below.  Introduce DRM_XE_MAX_SYNCS (set to 1024) and reject any request exceeding this limit.  \u0022 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1217 at mm/page_alloc.c:5124 __alloc_frozen_pages_noprof\u002B0x2f8/0x2180 mm/page_alloc.c:5124 ... Call Trace:  \u003CTASK\u003E  alloc_pages_mpol\u002B0xe4/0x330 mm/mempolicy.c:2416  ___kmalloc_large_node\u002B0xd8/0x110 mm/slub.c:4317  __kmalloc_large_node_noprof\u002B0x18/0xe0 mm/slub.c:4348  __do_kmalloc_node mm/slub.c:4364 [inline]  __kmalloc_noprof\u002B0x3d4/0x4b0 mm/slub.c:4388  kmalloc_noprof include/linux/slab.h:909 [inline]  kmalloc_array_noprof include/linux/slab.h:948 [inline]  xe_exec_ioctl\u002B0xa47/0x1e70 drivers/gpu/drm/xe/xe_exec.c:158  drm_ioctl_kernel\u002B0x1f1/0x3e0 drivers/gpu/drm/drm_ioctl.c:797  drm_ioctl\u002B0x5e7/0xc50 drivers/gpu/drm/drm_ioctl.c:894  xe_drm_ioctl\u002B0x10b/0x170 drivers/gpu/drm/xe/xe_device.c:224  vfs_ioctl fs/ioctl.c:51 [inline]  __do_sys_ioctl fs/ioctl.c:598 [inline]  __se_sys_ioctl fs/ioctl.c:584 [inline]  __x64_sys_ioctl\u002B0x18b/0x210 fs/ioctl.c:584  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]  do_syscall_64\u002B0xbb/0x380 arch/x86/entry/syscall_64.c:94  entry_SYSCALL_64_after_hwframe\u002B0x77/0x7f ... \u0022  v2: Add \u0022Reported-by\u0022 and Cc stable kernels. v3: Change XE_MAX_SYNCS from 64 to 1024. (Matt \u0026 Ashutosh) v4: s/XE_MAX_SYNCS/DRM_XE_MAX_SYNCS/ (Matt) v5: Do the check at the top of the exec func. (Matt)  (cherry picked from commit b07bac9bd708ec468cd1b8a5fe70ae2ac9b0a11c)",
  "published": "2026-01-13T16:16:02Z",
  "severity": "",
  "epss": 0.00199,
  "epssPercentile": 0.09755,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
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    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}