ftrace: Do not blindly read the ip address in ftrace_bug() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 15 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: ftrace: Do not blindly read the ip address in ftrace_bug() It was reported that a bug on arm64 caused a bad ip address to be used for updating into a nop in ftrace_init(), but the error path (rightfully) returned -EINVAL and not -EFAULT, as the bug caused more than one error to occur. But because -EINVAL was returned, the ftrace_bug() tried to report what was at the location of the ip address, and read it directly. This caused the machine to panic, as the ip was not pointing to a valid memory address. Instead, read the ip address with copy_from_kernel_nofault() to safely access the memory, and if it faults, report that the address faulted, otherwise report what was in that location.
Weaknesses (CWE)
- CWE-706 — Use of Incorrectly-Resolved Name or Reference
References
- https://git.kernel.org/stable/c/0bc62e398bbd9e600959e610def5109957437b28
- https://git.kernel.org/stable/c/4aedc2bc2b32c93555f47c95610efb89cc1ec09b
- https://git.kernel.org/stable/c/acf671ba79c1feccc3ec7cfdcffead4efcec49e7
- https://git.kernel.org/stable/c/862dcc14f2803c556bdd73b43c27b023fafce2fb
- https://git.kernel.org/stable/c/7e4e824b109f1d41ccf223fbb0565d877d6223a2
- https://git.kernel.org/stable/c/97524384762c1fb9b3ded931498dd2047bd0de81
- https://git.kernel.org/stable/c/3e4ddeb68751fb4fb657199aed9cfd5d02796875
- https://git.kernel.org/stable/c/6c14133d2d3f768e0a35128faac8aa6ed4815051
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-34281
- GCVE · GCVE-0-2021-47276
CERT-FR advisories
- CERTFR-2024-AVI-0526 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0496 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.28 < 4.4.273cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.5 < 4.9.273cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.237cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.195cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.126cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.44cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.12.11cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 < 0bc62e398bbd9e600959e610def5109957437b28 ; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 < 4aedc2bc2b32c93555f47c95610efb89cc1ec09b ; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 < acf671ba79c1feccc3ec7cfdcffead4efcec49e7 ; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 < 862dcc14f2803c556bdd73b43c27b023fafce2fb ; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 < 7e4e824b109f1d41ccf223fbb0565d877d6223a2 ; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 < 97524384762c1fb9b3ded931498dd2047bd0de81 |
| Linux · Linux | affected 2.6.28 ; unaffected 0 < 2.6.28 ; unaffected 4.4.273 ≤ 4.4.* ; unaffected 4.9.273 ≤ 4.9.* ; unaffected 4.14.237 ≤ 4.14.* ; unaffected 4.19.195 ≤ 4.19.* |
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 |