NULL Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-rt-modules-extra (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RHEL10-KERNELRTMODULESEXTRA-18661971
- published12 Aug 2026
- disclosed10 Aug 2026
Introduced: 10 Aug 2026
NewCVE-2026-68260 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
drm/imagination: acquire vm_ctx->lock before mapping memory to GPU VM
The drm gpuvm code doesn't protect find operation against map operation, and the driver needs to ensure a map operation shouldn't happen when a find operation is in progress.
In some cases a find operation will be in progress when doing map/unmap operations, and the find operation will do a NULL pointer dereference.
An example of the stack trace of such NULL dereference is shown below:
Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000000010
[<ffffffff01e989d4>] drm_gpuva_find+0x28/0x6c [drm_gpuvm] [<ffffffff01ed3a40>] pvr_vm_unmap+0x34/0x68 [powervr] [<ffffffff01ec69da>] pvr_ioctl_vm_unmap+0x2e/0x50 [powervr] [<ffffffff8080ce0a>] drm_ioctl_kernel+0x8e/0xdc [<ffffffff8080d016>] drm_ioctl+0x1be/0x3e0 [<ffffffff802bec3e>] __riscv_sys_ioctl+0xba/0xc4 [<ffffffff80d858b2>] do_trap_ecall_u+0x23e/0x3f4 [<ffffffff80d92288>] handle_exception+0x168/0x174
As all occurences of drm_gpuva_find*() are already guarded by vm_ctx->lock, make pvr_vm_map() to acquire this lock to prevent disturbing any find operation. This fixes the NULL deference problem in drm_gpuva_find*().
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2513347
- https://access.redhat.com/security/cve/CVE-2026-68260
- https://git.kernel.org/stable/c/15f58d44c24477a6ebffa44ec05207b81cfa55d9
- https://git.kernel.org/stable/c/17e2030f37600994440f875dc410615d5c66ee6d
- https://git.kernel.org/stable/c/1f1f2618e44b21a7d4eb30d3bbd7e015ffbbbadf
- https://git.kernel.org/stable/c/6253bb56bb2ebdf317d8b599ce737a2510cc2e17