Linux hwe edge: 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…
A double-free vulnerability was identified and fixed in the Linux kernel's ice network driver. The issue occurs when ice_tso() or ice_tx_csum() fail during packet transmission, leading to the same skb buffer being freed twice if the network interface is brought down before the next packet is transmitted. This can cause memory corruption and potentially impact system stability or security. The fix involves resetting the tx_buf type in the error path to prevent the double-free. The vulnerability affects multiple Ubuntu Linux kernel versions prior to 7.0.0-28.28~24.04.1 and related builds.
AI Analysis
Technical Summary
The Linux kernel's ice network driver had a double-free vulnerability triggered when ice_tso() or ice_tx_csum() functions failed during transmission. In such cases, the skb buffer was freed in the error path, but the tx_buf structure still referenced it as valid. If no subsequent packet was transmitted and the interface was brought down, the skb buffer was freed a second time, causing a double-free. The patch resets the tx_buf type to ICE_TX_BUF_EMPTY in the error path to prevent the second free. The bug was detected and initially patched with AI assistance and verified with KASAN testing. No similar bugs were found in related Intel drivers.
Potential Impact
Successful exploitation of this vulnerability can lead to a double-free condition in kernel memory, which may cause system crashes, memory corruption, or potentially enable privilege escalation or denial of service. The CVSS vector indicates local attack vector with low complexity, requiring low privileges but no user interaction, and results in high confidentiality, integrity, and availability impact.
Mitigation Recommendations
A fix is available that addresses the double-free by resetting the tx_buf type in the error path. Users should update their Linux kernel to versions 7.0.0-28.28~24.04.1 or later, or the corresponding patched versions for their Ubuntu distributions. Since this is not a cloud service, remediation requires applying the official kernel update from the vendor. Patch status is confirmed by the presence of fixed versions in the affectedVersions field.
Linux hwe edge: 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…
Description
A double-free vulnerability was identified and fixed in the Linux kernel's ice network driver. The issue occurs when ice_tso() or ice_tx_csum() fail during packet transmission, leading to the same skb buffer being freed twice if the network interface is brought down before the next packet is transmitted. This can cause memory corruption and potentially impact system stability or security. The fix involves resetting the tx_buf type in the error path to prevent the double-free. The vulnerability affects multiple Ubuntu Linux kernel versions prior to 7.0.0-28.28~24.04.1 and related builds.
CVSS v3.1
Score 7.8high
Affected software
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protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resoluteRun on your own infrastructure? 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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's ice network driver had a double-free vulnerability triggered when ice_tso() or ice_tx_csum() functions failed during transmission. In such cases, the skb buffer was freed in the error path, but the tx_buf structure still referenced it as valid. If no subsequent packet was transmitted and the interface was brought down, the skb buffer was freed a second time, causing a double-free. The patch resets the tx_buf type to ICE_TX_BUF_EMPTY in the error path to prevent the second free. The bug was detected and initially patched with AI assistance and verified with KASAN testing. No similar bugs were found in related Intel drivers.
Potential Impact
Successful exploitation of this vulnerability can lead to a double-free condition in kernel memory, which may cause system crashes, memory corruption, or potentially enable privilege escalation or denial of service. The CVSS vector indicates local attack vector with low complexity, requiring low privileges but no user interaction, and results in high confidentiality, integrity, and availability impact.
Mitigation Recommendations
A fix is available that addresses the double-free by resetting the tx_buf type in the error path. Users should update their Linux kernel to versions 7.0.0-28.28~24.04.1 or later, or the corresponding patched versions for their Ubuntu distributions. Since this is not a cloud service, remediation requires applying the official kernel update from the vendor. Patch status is confirmed by the presence of fixed versions in the affectedVersions field.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-53009
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:20.04:LTS","Ubuntu:Pro:FIPS-updates:20.04:LTS","Ubuntu:Pro:FIPS:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Nvidia-BlueField:22.04:LTS","Ubuntu:Pro:FIPS-preview:22.04:LTS","Ubuntu:Pro:FIPS-updates:22.04:LTS","Ubuntu:Pro:Realtime:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Nvidia-BlueField:24.04:LTS","Ubuntu:Pro:FIPS-updates:24.04:LTS","Ubuntu:Pro:Realtime:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a5a015791ae9bcd3f8025e4
Added to database: 07/17/2026, 10:17:59 UTC
Last enriched: 07/30/2026, 20:38:23 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 2
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