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TI-2025-25420 Aliases CVE-2025-38079GHSA-r6vx-mj26-9m2q

crypto: algif_hash - fix double free in hash_accept

Priority LOW 35CWE-415Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 38 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - fix double free in hash_accept If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also freed in af_alg_release, leading to slab-use-after-free error.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 12th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.4.294, 5.10.238, 5.15.185 +5Red Hat: 15 advisoriesRed Hat: 38 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.38 and later5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9, 6.15Patch availableCNA
  • Linux VendorLinux Affected 2.6.38 and later Fixed in 5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9, 6.15 Patch available CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.38 to before 5.4.294; 5.5 to before 5.10.238; 5.11 to before 5.15.185; 5.16 to before 6.1.141; 6.2 to before 6.6.93; 6.7 to before 6.12.31; 6.13 to before 6.14.9VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*6.15 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*6.15 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*6.15 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*6.15 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*6.15 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc6:*:*:*:*:*:*6.15 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.15:rc7:*:*:*:*:*:*6.15 rc7VulnerableLinux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.38 to before 5.4.294; 5.5 to before 5.10.238; 5.11 to before 5.15.185; 5.16 to before 6.1.141; 6.2 to before 6.6.93; 6.7 to before 6.12.31; 6.13 to before 6.14.9 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:linux:linux_kernel:6.15:rc7:*:*:*:*:*:* Versions 6.15 rc7 Vulnerable ·Linux
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9, 6.15

Red Hat 15 advisories

  • RHSA-2025:15670 Released 2025-09-11 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.146.1.el9_0, kernel-debug-devel-matched-5.14.0-70.146.1.el9_0, kernel-devel-5.14.0-70.146.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.146.1.el9_0, kernel-5.14.0-70.146.1.el9_0, kernel-abi-stablelists-5.14.0-70.146.1.el9_0 +14
  • RHSA-2025:15658 Released 2025-09-10 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-core-5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-5.14.0-70.146.1.rt21.218.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-core-5.14.0-70.146.1.rt21.218.el9_0, kernel-rt-debug-5.14.0-70.146.1.rt21.218.el9_0 +7
  • RHSA-2025:15035 Released 2025-09-02 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.170.1.el8_4, kernel-4.18.0-305.170.1.el8_4, kernel-abi-stablelists-4.18.0-305.170.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.170.1.el8_4, kernel-4.18.0-305.170.1.el8_4, kernel-abi-stablelists-4.18.0-305.170.1.el8_4 +14
Show 12 more Red Hat advisories
  • RHSA-2025:15016 Released 2025-09-02 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.85.1.el9_4, libperf-5.14.0-427.85.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.85.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.85.1.el9_4, kernel-64k-devel-5.14.0-427.85.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.85.1.el9_4, kernel-5.14.0-427.85.1.el9_4, kernel-64k-5.14.0-427.85.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.85.1.el9_4, kernel-rt-core-5.14.0-427.85.1.el9_4, kernel-rt-debug-5.14.0-427.85.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.85.1.el9_4, kernel-rt-core-5.14.0-427.85.1.el9_4, kernel-rt-debug-5.14.0-427.85.1.el9_4 +11
  • RHSA-2025:14987 Released 2025-09-02 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.138.1.el7, kernel-3.10.0-1160.138.1.el7, kernel-abi-whitelists-3.10.0-1160.138.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.138.1.el7, kernel-tools-libs-devel-3.10.0-1160.138.1.el7
  • RHSA-2025:14986 Released 2025-09-02 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.138.1.rt56.1290.el7, kernel-rt-debug-3.10.0-1160.138.1.rt56.1290.el7, kernel-rt-debug-devel-3.10.0-1160.138.1.rt56.1290.el7 +4
  • RHSA-2025:14742 Released 2025-08-27 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.165.1.el8_2, kernel-4.18.0-193.165.1.el8_2, kernel-abi-whitelists-4.18.0-193.165.1.el8_2 +14
  • RHSA-2025:14692 Released 2025-08-27 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.158.1.el8_6, kernel-4.18.0-372.158.1.el8_6, kernel-abi-stablelists-4.18.0-372.158.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.158.1.el8_6, kernel-4.18.0-372.158.1.el8_6, kernel-abi-stablelists-4.18.0-372.158.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.158.1.el8_6, kernel-4.18.0-372.158.1.el8_6, kernel-abi-stablelists-4.18.0-372.158.1.el8_6 +14
  • RHSA-2025:14696 Released 2025-08-27 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.134.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.134.1.el9_2, kernel-64k-devel-5.14.0-284.134.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.134.1.el9_2, kernel-5.14.0-284.134.1.el9_2, kernel-64k-5.14.0-284.134.1.el9_2 +29
  • RHSA-2025:14691 Released 2025-08-27 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-core-5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-debug-5.14.0-284.134.1.rt14.419.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-core-5.14.0-284.134.1.rt14.419.el9_2, kernel-rt-debug-5.14.0-284.134.1.rt14.419.el9_2 +11
  • RHSA-2025:14511 Released 2025-08-25 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.107.1.el8_8, kernel-4.18.0-477.107.1.el8_8, kernel-abi-stablelists-4.18.0-477.107.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.107.1.el8_8, kernel-4.18.0-477.107.1.el8_8, kernel-abi-stablelists-4.18.0-477.107.1.el8_8 +14
  • RHSA-2025:13602 Released 2025-08-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.33.2.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.33.2.el9_6, kernel-64k-devel-5.14.0-570.33.2.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.33.2.el9_6, kernel-64k-5.14.0-570.33.2.el9_6, kernel-64k-core-5.14.0-570.33.2.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.33.2.el9_6, libperf-5.14.0-570.33.2.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.33.2.el9_6, kernel-rt-64k-5.14.0-570.33.2.el9_6, kernel-rt-64k-core-5.14.0-570.33.2.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.33.2.el9_6, kernel-rt-core-5.14.0-570.33.2.el9_6, kernel-rt-debug-5.14.0-570.33.2.el9_6 +11
  • RHSA-2025:13598 Released 2025-08-11 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.27.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.27.1.el10_0, kernel-64k-devel-6.12.0-55.27.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-55.27.1.el10_0, kernel-64k-6.12.0-55.27.1.el10_0, kernel-64k-core-6.12.0-55.27.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.27.1.el10_0, libperf-6.12.0-55.27.1.el10_0
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-55.27.1.el10_0, kernel-rt-64k-6.12.0-55.27.1.el10_0, kernel-rt-64k-core-6.12.0-55.27.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.27.1.el10_0, kernel-rt-core-6.12.0-55.27.1.el10_0, kernel-rt-debug-6.12.0-55.27.1.el10_0 +11
  • RHSA-2025:12752 Released 2025-08-04 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.66.1.el8_10, kernel-4.18.0-553.66.1.el8_10, kernel-abi-stablelists-4.18.0-553.66.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.66.1.el8_10
  • RHSA-2025:12753 Released 2025-08-04 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.66.1.rt7.407.el8_10, kernel-rt-core-4.18.0-553.66.1.rt7.407.el8_10, kernel-rt-debug-4.18.0-553.66.1.rt7.407.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.66.1.rt7.407.el8_10, kernel-rt-core-4.18.0-553.66.1.rt7.407.el8_10, kernel-rt-debug-4.18.0-553.66.1.rt7.407.el8_10 +7

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-2025:15016
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:13598
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:13602
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:15670
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:14696
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:15016
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:13598
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:12752
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:13602
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:14742
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:15035
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:14692
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:14692
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:14511
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:15670
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:14696
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:15016
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2025:15035
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:14692
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:14511
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:12752
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:13598
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:13602
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:12753
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:15658
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:12753
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:13598
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:13602
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:15658
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:14691
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:15016
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:13598
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:13602
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:14691
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:15016
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:14987
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:14987
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2025:14986
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux AppStream E4S (v.9.0)
  • Red Hat Enterprise Linux NFV E4S (v.9.0)
  • Red Hat Enterprise Linux Real Time E4S (v.9.0)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-38079
  2. 2026-10-03 Alias added: GHSA-r6vx-mj26-9m2q

References

Patch 8

Advisory 2

  • 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
See all 15278 →

Sources

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