# CVE-2025-68802: linux: In the Linux kernel, the following vulnerability has been resolved: drm/xe: Limit num_syncs to prevent oversized all... 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. - Web page: https://patchblox.com/security/cve/CVE-2025-68802 - Priority: Routine - CVSS: n/a - EPSS: 0.0020 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jan 13, 2026 ## 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. " ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1217 at mm/page_alloc.c:5124 __alloc_frozen_pages_noprof+0x2f8/0x2180 mm/page_alloc.c:5124 ... Call Trace: alloc_pages_mpol+0xe4/0x330 mm/mempolicy.c:2416 ___kmalloc_large_node+0xd8/0x110 mm/slub.c:4317 __kmalloc_large_node_noprof+0x18/0xe0 mm/slub.c:4348 __do_kmalloc_node mm/slub.c:4364 [inline] __kmalloc_noprof+0x3d4/0x4b0 mm/slub.c:4388 kmalloc_noprof include/linux/slab.h:909 [inline] kmalloc_array_noprof include/linux/slab.h:948 [inline] xe_exec_ioctl+0xa47/0x1e70 drivers/gpu/drm/xe/xe_exec.c:158 drm_ioctl_kernel+0x1f1/0x3e0 drivers/gpu/drm/drm_ioctl.c:797 drm_ioctl+0x5e7/0xc50 drivers/gpu/drm/drm_ioctl.c:894 xe_drm_ioctl+0x10b/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+0x18b/0x210 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xbb/0x380 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ... " v2: Add "Reported-by" and Cc stable kernels. v3: Change XE_MAX_SYNCS from 64 to 1024. (Matt & 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) ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | dtb-aarch64 opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-64kb opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-64kb sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-64kb sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-azure opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-azure sles 15.7 | 6.4.0-150700.20.27.1 | [SUSE-SU-2026:0472-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0472-1.md) | Feb 12, 2026 | | Linux | kernel-azure sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-default opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-default sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-default sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-default-base opensuse-leap 16.0 | 6.12.0-160000.26.1.160000.2.7 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-default-base sles 15.7 | 6.4.0-150700.53.31.1.150700.17.21.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-default-base sles 16.0 | 6.12.0-160000.26.1.160000.2.7 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-docs opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-docs sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-docs sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-kvmsmall opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-kvmsmall sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-livepatch-SLE15-SP7-RT_Update_9 sles 15.7 | 1-150700.1.3.2 | [SUSE-SU-2026:0587-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0587-1.md) | Feb 20, 2026 | | Linux | kernel-livepatch-SLE15-SP7_Update_9 sles 15.7 | 1-150700.15.3.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-obs-build opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-obs-build sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-obs-qa opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-obs-qa sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-rt opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-source opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-source sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-source sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-source-azure sles 15.7 | 6.4.0-150700.20.27.1 | [SUSE-SU-2026:0472-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0472-1.md) | Feb 12, 2026 | | Linux | kernel-syms opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-syms sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-syms sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | kernel-syms-azure sles 15.7 | 6.4.0-150700.20.27.1 | [SUSE-SU-2026:0472-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0472-1.md) | Feb 12, 2026 | | Linux | kernel-zfcpdump opensuse-leap 16.0 | 6.12.0-160000.26.1 | [OPENSUSE-SU-2026:20287-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20287-1.md) | Feb 27, 2026 | | Linux | kernel-zfcpdump sles 15.7 | 6.4.0-150700.53.31.1 | [SUSE-SU-2026:0447-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0447-1.md) | Feb 11, 2026 | | Linux | kernel-zfcpdump sles 16.0 | 6.12.0-160000.26.1 | [SUSE-SU-2026:20599-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20599-1.md) | Feb 27, 2026 | | Linux | linux Debian 13.5 (trixie) | 6.12.69-1 | [DEBIAN-CVE-2025-68802](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68802.md) | Jan 13, 2026 | | Linux | linux Debian 14 | 6.18.3-1 | [DEBIAN-CVE-2025-68802](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68802.md) | Jan 13, 2026 | --- Data as of 2026-11-08T00:53:09Z UTC. 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