dmaengine: idxd: fix memory leak in error handling path of idxd_alloc
Priority LOW 24CWE-401Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 10 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix memory leak in error handling path of idxd_alloc Memory allocated for idxd is not freed if an error occurs during idxd_alloc(). To fix it, free the allocated memory in the reverse order of allocation before exiting the function in case of an error.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00197 9th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1, 6.1.140, 6.6.92 +3Red Hat: 2 advisoriesRed Hat: 10 fixed, 2 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 6.0.9 to before 6.1 | 6.1 | Patch available | CNA |
| Linux | Linux | 6.1 and later | 6.1.140, 6.6.92, 6.12.30, 6.14.8, 6.15 | Patch available | CNA |
- Linux VendorLinux Affected 6.0.9 to before 6.1 Fixed in 6.1 Patch available CNA
- Linux VendorLinux Affected 6.1 and later Fixed in 6.1.140, 6.6.92, 6.12.30, 6.14.8, 6.15 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.0.9 to before 6.1.140; 6.2 to before 6.6.92; 6.7 to before 6.12.30; 6.13 to before 6.14.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* | 6.15 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* | 6.15 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* | 6.15 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:* | 6.15 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:* | 6.15 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.15:rc6:*:*:*:*:*:* | 6.15 rc6 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.0.9 to before 6.1.140; 6.2 to before 6.6.92; 6.7 to before 6.12.30; 6.13 to before 6.14.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* Versions 6.15 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* Versions 6.15 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* Versions 6.15 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:* Versions 6.15 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:* Versions 6.15 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.15:rc6:*:*:*:*:*:* Versions 6.15 rc6 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1
- Fix · CNA Linux (Linux) Fixed in 6.1.140, 6.6.92, 6.12.30, 6.14.8, 6.15
Red Hat 2 advisories
- RHSA-2026:18587 Released 2026-05-19 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.5.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.5.1.el9_8, kernel-64k-devel-5.14.0-687.5.1.el9_8 +12
- Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.5.1.el9_8, kernel-64k-5.14.0-687.5.1.el9_8, kernel-64k-core-5.14.0-687.5.1.el9_8 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.5.1.el9_8, libperf-5.14.0-687.5.1.el9_8
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.5.1.el9_8, kernel-rt-64k-5.14.0-687.5.1.el9_8, kernel-rt-64k-core-5.14.0-687.5.1.el9_8 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.5.1.el9_8, kernel-rt-core-5.14.0-687.5.1.el9_8, kernel-rt-debug-5.14.0-687.5.1.el9_8 +9
- RHSA-2026:18134 Released 2026-05-19 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.7.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.7.1.el10_2, kernel-64k-devel-6.12.0-211.7.1.el10_2 +12
- Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.7.1.el10_2, kernel-64k-6.12.0-211.7.1.el10_2, kernel-64k-core-6.12.0-211.7.1.el10_2 +29
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.7.1.el10_2, libperf-6.12.0-211.7.1.el10_2
- Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.7.1.el10_2, kernel-rt-64k-6.12.0-211.7.1.el10_2, kernel-rt-64k-core-6.12.0-211.7.1.el10_2 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.7.1.el10_2, kernel-rt-core-6.12.0-211.7.1.el10_2, kernel-rt-debug-6.12.0-211.7.1.el10_2 +9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:18134 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:18587 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:18134 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2026:18587 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:18134 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2026:18587 |
| Red Hat Enterprise Linux Real Time (v. 10) | Fixed | RHSA-2026:18134 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2026:18587 |
| Red Hat Enterprise Linux Real Time for NFV (v. 10) | Fixed | RHSA-2026:18134 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2026:18587 |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2025-38015
- 2026-10-03 Alias added: GHSA-fmxg-mjgm-8q6c
- 2026-11-05 CISA SSVC decision points changed
References
Patch 5
- https://git.kernel.org/stable/c/64afd9a1f644b27661420257dcc007d5009c99dd
- https://git.kernel.org/stable/c/6e94a2c3e4c166cd2736ac225fba5889fb1e8ac0
- https://git.kernel.org/stable/c/868dbce755ec92855362d213f47e045a8388361a
- https://git.kernel.org/stable/c/4f005eb68890698e5abc6a3af04dab76f175c50c
- https://git.kernel.org/stable/c/46a5cca76c76c86063000a12936f8e7875295838
More Linux Kernel vulnerabilities
- 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-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
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-38015 · CVE Program
- CVE-2025-38015 · NVD
- FIRST EPSS
- GHSA-fmxg-mjgm-8q6c · GitHub Advisory Database · CC BY 4.0
- CVE-2025-38015 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences