CVE-2026-53009
- Source
- https://cve.org/CVERecord?id=CVE-2026-53009
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53009.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-53009
- Downstream
- Related
- Published
- 2026-06-24T16:29:20Z
- Modified
- 2026-08-27T18:26:56Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- ice: fix double-free of tx_buf skb
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53009.json" }- References
-
- https://git.kernel.org/stable/c/1a303baa715e6b78d6a406aaf335f87ff35acfcd
- https://git.kernel.org/stable/c/4c08fc2119ef0281cfa2cee007acf0a251be55f2
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53009.json
- https://access.redhat.com/errata/RHSA-2026:42919
- https://access.redhat.com/errata/RHSA-2026:54246
- https://access.redhat.com/errata/RHSA-2026:54247
- https://access.redhat.com/security/cve/CVE-2026-53009
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53009.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53009
- https://bugzilla.redhat.com/show_bug.cgi?id=2492390
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git