crypto: seqiv - Do not use req->iv after crypto_aead_encrypt
Priority LOW 33CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 10 fixed, 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Do not use req->iv after crypto_aead_encrypt As soon as crypto_aead_encrypt is called, the underlying request may be freed by an asynchronous completion. Thus dereferencing req->iv after it returns is invalid. Instead of checking req->iv against info, create a new variable unaligned_info and use it for that purpose instead.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00305 23rd percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.248, 5.15.198, 6.1.160 +4Red Hat: 2 advisoriesRed Hat: 10 fixed, 5 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 | 2.6.25 and later | 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.4, 6.19 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.25 and later Fixed in 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.4, 6.19 Patch available CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 2.6.25.1 to before 5.10.248; 5.11 to before 5.15.198; 5.16 to before 6.1.160; 6.2 to before 6.6.120; 6.7 to before 6.12.64; 6.13 to before 6.18.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:2.6.25:-:*:*:*:*:*:* | 2.6.25 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* | 6.19 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* | 6.19 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* | 6.19 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* | 6.19 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:* | 6.19 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:* | 6.19 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:* | 6.19 rc7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:* | 6.19 rc8 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.25.1 to before 5.10.248; 5.11 to before 5.15.198; 5.16 to before 6.1.160; 6.2 to before 6.6.120; 6.7 to before 6.12.64; 6.13 to before 6.18.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:2.6.25:-:*:*:*:*:*:* Versions 2.6.25 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* Versions 6.19 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* Versions 6.19 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* Versions 6.19 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* Versions 6.19 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:* Versions 6.19 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:* Versions 6.19 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:* Versions 6.19 rc7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:* Versions 6.19 rc8 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.4, 6.19
Red Hat 2 advisories
- RHSA-2026:55445 Released 2026-08-17 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.98.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.98.1.el10_0, kernel-64k-devel-6.12.0-55.98.1.el10_0 +12
- Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.98.1.el10_0, kernel-64k-6.12.0-55.98.1.el10_0, kernel-64k-core-6.12.0-55.98.1.el10_0 +28
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.98.1.el10_0, libperf-6.12.0-55.98.1.el10_0
- Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.98.1.el10_0, kernel-rt-64k-6.12.0-55.98.1.el10_0, kernel-rt-64k-core-6.12.0-55.98.1.el10_0 +21
- Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.98.1.el10_0, kernel-rt-core-6.12.0-55.98.1.el10_0, kernel-rt-debug-6.12.0-55.98.1.el10_0 +11
- RHSA-2026:52667 Released 2026-08-10 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.132.1.el9_6, libperf-5.14.0-570.132.1.el9_6
- Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.132.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.132.1.el9_6, kernel-64k-devel-5.14.0-570.132.1.el9_6 +12
- Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.132.1.el9_6, kernel-64k-5.14.0-570.132.1.el9_6, kernel-64k-core-5.14.0-570.132.1.el9_6 +28
- Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.132.1.el9_6, kernel-rt-64k-5.14.0-570.132.1.el9_6, kernel-rt-64k-core-5.14.0-570.132.1.el9_6 +21
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.132.1.el9_6, kernel-rt-core-5.14.0-570.132.1.el9_6, kernel-rt-debug-5.14.0-570.132.1.el9_6 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder EUS (v.9.6) | Fixed | RHSA-2026:52667 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:55445 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:52667 |
| Red Hat Enterprise Linux BaseOS EUS (v. 10.0) | Fixed | RHSA-2026:55445 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.6) | Fixed | RHSA-2026:52667 |
| Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) | Fixed | RHSA-2026:55445 |
| Red Hat Enterprise Linux Real Time EUS (v. 10.0) | Fixed | RHSA-2026:55445 |
| Red Hat Enterprise Linux Real Time EUS (v.9.6) | Fixed | RHSA-2026:52667 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) | Fixed | RHSA-2026:55445 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) | Fixed | RHSA-2026:52667 |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-71131
- 2026-10-03 Alias added: GHSA-29vw-w4vv-p6rr
- 2026-10-19 Weakness changed · CISA ADP
References
Patch 7
- https://git.kernel.org/stable/c/18202537856e0fae079fed2c9308780bcff2bb9d
- https://git.kernel.org/stable/c/baf0e2d1e03ddb04781dfe7f22a654d3611f69b2
- https://git.kernel.org/stable/c/50f196d2bbaee4ab2494bb1b0d294deba292951a
- https://git.kernel.org/stable/c/0279978adec6f1296af66b642cce641c6580be46
- https://git.kernel.org/stable/c/ccbb96434d88e32358894c879457b33f7508e798
- https://git.kernel.org/stable/c/5476f7f8a311236604b78fcc5b2a63b3a61b0169
- https://git.kernel.org/stable/c/50fdb78b7c0bcc550910ef69c0984e751cac72fa
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-2025-71131 · CVE Program
- CVE-2025-71131 · NVD
- FIRST EPSS
- GHSA-29vw-w4vv-p6rr · GitHub Advisory Database · CC BY 4.0
- CVE-2025-71131 · 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