ethernet:enic: Fix a use after free bug in enic_hard_start_xmit (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 16 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: ethernet:enic: Fix a use after free bug in enic_hard_start_xmit In enic_hard_start_xmit, it calls enic_queue_wq_skb(). Inside enic_queue_wq_skb, if some error happens, the skb will be freed by dev_kfree_skb(skb). But the freed skb is still used in skb_tx_timestamp(skb). My patch makes enic_queue_wq_skb() return error and goto spin_unlock() incase of error. The solution is provided by Govind. See https://lkml.org/lkml/2021/4/30/961.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/25a87b1f566b5eb2af2857a928f0e2310d900976
- https://git.kernel.org/stable/c/f7f6f07774091a6ddd98500b85386c3c6afb30d3
- https://git.kernel.org/stable/c/7afdd6aba95c8a526038e7abe283eeac3e4320f1
- https://git.kernel.org/stable/c/6892396ebf04ea2c021d80e10f4075e014cd7cc3
- https://git.kernel.org/stable/c/d90529392aaf498dafa95d212295d64b2cea4e24
- https://git.kernel.org/stable/c/643001b47adc844ae33510c4bb93c236667008a3
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-33646
- GCVE · GCVE-0-2021-46998
CERT-FR advisories
- CERTFR-2024-AVI-0458 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0440 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0420 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0363 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.16 < 4.19.191cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.120cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.38cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.11.22cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.12 < 5.12.5
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 25a87b1f566b5eb2af2857a928f0e2310d900976 ; affected fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < f7f6f07774091a6ddd98500b85386c3c6afb30d3 ; affected fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 7afdd6aba95c8a526038e7abe283eeac3e4320f1 ; affected fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 6892396ebf04ea2c021d80e10f4075e014cd7cc3 ; affected fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < d90529392aaf498dafa95d212295d64b2cea4e24 ; affected fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 643001b47adc844ae33510c4bb93c236667008a3 |
| Linux · Linux | affected 4.16 ; unaffected 0 < 4.16 ; unaffected 4.19.191 ≤ 4.19.* ; unaffected 5.4.120 ≤ 5.4.* ; unaffected 5.10.38 ≤ 5.10.* ; unaffected 5.11.22 ≤ 5.11.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |