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TI-2026-38096 Aliases CVE-2026-53009GHSA-67p5-53x6-9j7q

ice: fix double-free of tx_buf skb

Priority LOW 35CWE-416Published · 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: 24 fixed, 2 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: ice: fix double-free of tx_buf skb If ice_tso() or ice_tx_csum() fail, the error path in ice_xmit_frame_ring() frees the skb, but the 'first' tx_buf still points to it and is marked as valid (ICE_TX_BUF_SKB). 'next_to_use' remains unchanged, so the potential problem will likely fix itself when the next packet is transmitted and the tx_buf gets overwritten. But if there is no next packet and the interface is brought down instead, ice_clean_tx_ring() -> ice_unmap_and_free_tx_buf() will find the tx_buf and free the skb for the second time. The fix is to reset the tx_buf type to ICE_TX_BUF_EMPTY in the error path, so that ice_unmap_and_free_tx_buf(). Move the initialization of 'first' up, to ensure it's already valid in case we hit the linearization error path. The bug was spotted by AI while I had it looking for something else. It also proposed an initial version of the patch. I reproduced the bug and tested the fix by adding code to inject failures, on a build with KASAN. I looked for similar bugs in related Intel drivers and did not find any.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00182 7th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.160, 6.12.114 +3Red Hat: 8 advisoriesRed Hat: 24 fixed, 2 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
LinuxLinux4.17 and later6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.0.10, 7.1Patch availableCNA
  • Linux VendorLinux Affected 4.17 and later Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.0.10, 7.1 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.17 to before 7.0.10VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*10.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.17 to before 7.0.10 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Red Hat

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.0.10, 7.1

Red Hat 8 advisories

  • RHSA-2026:77215 Released 2026-10-07 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.195.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.195.1.el9_2, kernel-64k-devel-5.14.0-284.195.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.195.1.el9_2, kernel-5.14.0-284.195.1.el9_2, kernel-64k-5.14.0-284.195.1.el9_2 +29
  • RHSA-2026:77214 Released 2026-10-07 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.195.1.rt14.480.el9_2, kernel-rt-core-5.14.0-284.195.1.rt14.480.el9_2, kernel-rt-debug-5.14.0-284.195.1.rt14.480.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.195.1.rt14.480.el9_2, kernel-rt-core-5.14.0-284.195.1.rt14.480.el9_2, kernel-rt-debug-5.14.0-284.195.1.rt14.480.el9_2 +11
  • RHSA-2026:69089 Released 2026-09-21 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.105.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.105.1.el10_0, kernel-64k-devel-6.12.0-55.105.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.105.1.el10_0, kernel-64k-6.12.0-55.105.1.el10_0, kernel-64k-core-6.12.0-55.105.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.105.1.el10_0, libperf-6.12.0-55.105.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.105.1.el10_0, kernel-rt-64k-6.12.0-55.105.1.el10_0, kernel-rt-64k-core-6.12.0-55.105.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.105.1.el10_0, kernel-rt-core-6.12.0-55.105.1.el10_0, kernel-rt-debug-6.12.0-55.105.1.el10_0 +11
Show 5 more Red Hat advisories
  • RHSA-2026:65712 Released 2026-09-09 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) kernel-64k-debug-devel-5.14.0-427.149.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.149.1.el9_4, kernel-64k-devel-5.14.0-427.149.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool-7.3.0-427.149.1.el9_4, kernel-5.14.0-427.149.1.el9_4, kernel-64k-5.14.0-427.149.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt-5.14.0-427.149.1.el9_4, kernel-rt-core-5.14.0-427.149.1.el9_4, kernel-rt-debug-5.14.0-427.149.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt-5.14.0-427.149.1.el9_4, kernel-rt-core-5.14.0-427.149.1.el9_4, kernel-rt-debug-5.14.0-427.149.1.el9_4 +11
  • RHSA-2026:65711 Released 2026-09-09 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.213.1.el8_6, kernel-4.18.0-372.213.1.el8_6, kernel-abi-stablelists-4.18.0-372.213.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) bpftool-4.18.0-372.213.1.el8_6, kernel-4.18.0-372.213.1.el8_6, kernel-abi-stablelists-4.18.0-372.213.1.el8_6 +14
  • RHSA-2026:54246 Released 2026-08-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.155.1.el8_10, kernel-4.18.0-553.155.1.el8_10, kernel-abi-stablelists-4.18.0-553.155.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.155.1.el8_10
  • RHSA-2026:54247 Released 2026-08-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.155.1.rt7.496.el8_10, kernel-rt-core-4.18.0-553.155.1.rt7.496.el8_10, kernel-rt-debug-4.18.0-553.155.1.rt7.496.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.155.1.rt7.496.el8_10, kernel-rt-core-4.18.0-553.155.1.rt7.496.el8_10, kernel-rt-debug-4.18.0-553.155.1.rt7.496.el8_10 +7
  • RHSA-2026:42919 Released 2026-07-21 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.37.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.37.1.el10_2, kernel-64k-devel-6.12.0-211.37.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.37.1.el10_2, kernel-64k-6.12.0-211.37.1.el10_2, kernel-64k-core-6.12.0-211.37.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.37.1.el10_2, libperf-6.12.0-211.37.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.37.1.el10_2, kernel-rt-64k-6.12.0-211.37.1.el10_2, kernel-rt-64k-core-6.12.0-211.37.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.37.1.el10_2, kernel-rt-core-6.12.0-211.37.1.el10_2, kernel-rt-debug-6.12.0-211.37.1.el10_2 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:77215
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:65712
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:69089
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:54246
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2026:65711
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:77215
Red Hat Enterprise Linux BaseOS E4S (v.9.4)Fixed RHSA-2026:65712
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:69089
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)Fixed RHSA-2026:65711
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:54246
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:69089
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2026:54247
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2026:54247
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:77214
Red Hat Enterprise Linux Real Time E4S (v.9.4)Fixed RHSA-2026:65712
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:69089
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:42919
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:77214
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)Fixed RHSA-2026:65712
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:69089
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53009
  2. 2026-10-03 Alias added: GHSA-67p5-53x6-9j7q
  3. 2026-10-07 Fix available: RHSA-2026:77214 · Red Hat
  4. 2026-10-07 Fix available: RHSA-2026:77215 · Red Hat
  5. 2026-10-07 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2), Red Hat Enterprise Linux Real Time E4S (v.9.2) +1 · Red Hat
  6. 2026-10-16 Fix available: Linux/[email protected], Linux/Linux@910e498613d5bf4cbe5f298c2613666c38679fab · CNA
  7. 2026-10-16 1 new reference · CNA
  8. 2026-10-16 CISA SSVC decision points changed
  9. 2026-10-19 Weakness changed · CISA ADP
  10. 2026-10-21 Fix available: Linux/Linux@359906450690a1d70545220bde82ba74f3fd80f8, Linux/[email protected], Linux/[email protected] +1 · CNA
  11. 2026-10-21 2 new references · CNA
  12. 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@aa30e355ee951e804cbc9ff3d5de429ec850eccb · CNA
  13. 2026-10-30 1 new reference · CNA

References

Patch 2

Advisory 3

Other 4

  • 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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