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TI-2025-26768 Aliases CVE-2025-40096GHSA-xpm8-g6rj-74pw

drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies

Priority LOW 33Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 35 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies When adding dependencies with drm_sched_job_add_dependency(), that function consumes the fence reference both on success and failure, so in the latter case the dma_fence_put() on the error path (xarray failed to expand) is a double free. Interestingly this bug appears to have been present ever since commit ebd5f74255b9 ("drm/sched: Add dependency tracking"), since the code back then looked like this: drm_sched_job_add_implicit_dependencies(): ... for (i = 0; i < fence_count; i++) { ret = drm_sched_job_add_dependency(job, fences[i]); if (ret) break; } for (; i < fence_count; i++) dma_fence_put(fences[i]); Which means for the failing 'i' the dma_fence_put was already a double free. Possibly there were no users at that time, or the test cases were insufficient to hit it. The bug was then only noticed and fixed after commit 9c2ba265352a ("drm/scheduler: use new iterator in drm_sched_job_add_implicit_dependencies v2") landed, with its fixup of commit 4eaf02d6076c ("drm/scheduler: fix drm_sched_job_add_implicit_dependencies"). At that point it was a slightly different flavour of a double free, which commit 963d0b356935 ("drm/scheduler: fix drm_sched_job_add_implicit_dependencies harder") noticed and attempted to fix. But it only moved the double free from happening inside the drm_sched_job_add_dependency(), when releasing the reference not yet obtained, to the caller, when releasing the reference already released by the former in the failure case. As such it is not easy to identify the right target for the fixes tag so lets keep it simple and just continue the chain. While fixing we also improve the comment and explain the reason for taking the reference and not dropping it.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00154 4th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.158, 6.6.114, 6.12.55 +2Red Hat: 10 advisoriesRed Hat: 35 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux5.16 and later6.1.158, 6.6.114, 6.12.55, 6.17.5, 6.18Patch availableCNA
  • Linux VendorLinux Affected 5.16 and later Fixed in 6.1.158, 6.6.114, 6.12.55, 6.17.5, 6.18 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.158, 6.6.114, 6.12.55, 6.17.5, 6.18

Red Hat 10 advisories

  • RHSA-2026:6193 Released 2026-03-30 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.65.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.65.1.el10_0, kernel-64k-devel-6.12.0-55.65.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.65.1.el10_0, kernel-64k-6.12.0-55.65.1.el10_0, kernel-64k-core-6.12.0-55.65.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.65.1.el10_0, libperf-6.12.0-55.65.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.65.1.el10_0, kernel-rt-64k-6.12.0-55.65.1.el10_0, kernel-rt-64k-core-6.12.0-55.65.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.65.1.el10_0, kernel-rt-core-6.12.0-55.65.1.el10_0, kernel-rt-debug-6.12.0-55.65.1.el10_0 +11
  • RHSA-2026:6164 Released 2026-03-30 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.103.1.el9_6, libperf-5.14.0-570.103.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.103.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.103.1.el9_6, kernel-64k-devel-5.14.0-570.103.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.103.1.el9_6, kernel-64k-5.14.0-570.103.1.el9_6, kernel-64k-core-5.14.0-570.103.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.103.1.el9_6, kernel-rt-64k-5.14.0-570.103.1.el9_6, kernel-rt-64k-core-5.14.0-570.103.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.103.1.el9_6, kernel-rt-core-5.14.0-570.103.1.el9_6, kernel-rt-debug-5.14.0-570.103.1.el9_6 +11
  • RHSA-2026:6153 Released 2026-03-30 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.45.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.45.1.el9_7, kernel-64k-devel-5.14.0-611.45.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.45.1.el9_7, kernel-64k-5.14.0-611.45.1.el9_7, kernel-64k-core-5.14.0-611.45.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.45.1.el9_7, libperf-5.14.0-611.45.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.45.1.el9_7, kernel-rt-64k-5.14.0-611.45.1.el9_7, kernel-rt-64k-core-5.14.0-611.45.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.45.1.el9_7, kernel-rt-core-5.14.0-611.45.1.el9_7, kernel-rt-debug-5.14.0-611.45.1.el9_7 +9
Show 7 more Red Hat advisories
  • RHSA-2026:3275 Released 2026-02-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-124.39.1.el10_1, kernel-64k-debug-devel-matched-6.12.0-124.39.1.el10_1, kernel-64k-devel-6.12.0-124.39.1.el10_1 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-124.39.1.el10_1, kernel-64k-6.12.0-124.39.1.el10_1, kernel-64k-core-6.12.0-124.39.1.el10_1 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-124.39.1.el10_1, libperf-6.12.0-124.39.1.el10_1
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-124.39.1.el10_1, kernel-rt-64k-6.12.0-124.39.1.el10_1, kernel-rt-64k-core-6.12.0-124.39.1.el10_1 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-124.39.1.el10_1, kernel-rt-core-6.12.0-124.39.1.el10_1, kernel-rt-debug-6.12.0-124.39.1.el10_1 +9
  • RHSA-2026:2560 Released 2026-02-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.156.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.156.1.el9_2, kernel-64k-devel-5.14.0-284.156.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.156.1.el9_2, kernel-5.14.0-284.156.1.el9_2, kernel-64k-5.14.0-284.156.1.el9_2 +29
  • RHSA-2026:2583 Released 2026-02-11 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-core-5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-debug-5.14.0-284.156.1.rt14.441.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-core-5.14.0-284.156.1.rt14.441.el9_2, kernel-rt-debug-5.14.0-284.156.1.rt14.441.el9_2 +11
  • RHSA-2026:2535 Released 2026-02-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.128.1.el8_8, kernel-4.18.0-477.128.1.el8_8, kernel-abi-stablelists-4.18.0-477.128.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.128.1.el8_8, kernel-4.18.0-477.128.1.el8_8, kernel-abi-stablelists-4.18.0-477.128.1.el8_8 +14
  • RHSA-2026:1879 Released 2026-02-04 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.109.1.el9_4, libperf-5.14.0-427.109.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.109.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.109.1.el9_4, kernel-64k-devel-5.14.0-427.109.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.109.1.el9_4, kernel-5.14.0-427.109.1.el9_4, kernel-64k-5.14.0-427.109.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.109.1.el9_4, kernel-rt-core-5.14.0-427.109.1.el9_4, kernel-rt-debug-5.14.0-427.109.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.109.1.el9_4, kernel-rt-core-5.14.0-427.109.1.el9_4, kernel-rt-debug-5.14.0-427.109.1.el9_4 +11
  • RHSA-2026:0759 Released 2026-01-19 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.94.1.el8_10, kernel-4.18.0-553.94.1.el8_10, kernel-abi-stablelists-4.18.0-553.94.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.94.1.el8_10
  • RHSA-2026:0760 Released 2026-01-19 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.94.1.rt7.435.el8_10, kernel-rt-core-4.18.0-553.94.1.rt7.435.el8_10, kernel-rt-debug-core-4.18.0-553.94.1.rt7.435.el8_10 +8
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.94.1.rt7.435.el8_10, kernel-rt-core-4.18.0-553.94.1.rt7.435.el8_10, kernel-rt-debug-core-4.18.0-553.94.1.rt7.435.el8_10 +6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2026:1879
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:6164
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:3275
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:6153
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:2560
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:1879
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:6164
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:3275
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:0759
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:6153
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2026:2535
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:2560
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2026:1879
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:6164
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2026:2535
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:0759
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:3275
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:6153
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2026:0760
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2026:0760
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:3275
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:6153
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:2583
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2026:1879
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:6164
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:3275
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:6153
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:2583
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:6193
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2026:1879
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:6164
Not affected: 6 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux BaseOS (v. 8)
  • Red Hat Enterprise Linux CRB (v. 8)
  • Red Hat Enterprise Linux NFV (v. 8)
  • Red Hat Enterprise Linux RT (v. 8)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-40096
  2. 2026-10-03 Alias added: GHSA-xpm8-g6rj-74pw

References

Other 5

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
See all 21741 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences