CVE-2022-49076
RDMA/hfi1: Fix use-after-free bug for mm struct
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.26 % · percentile 18 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix use-after-free bug for mm struct Under certain conditions, such as MPI_Abort, the hfi1 cleanup code may represent the last reference held on the task mm. hfi1_mmu_rb_unregister() then drops the last reference and the mm is freed before the final use in hfi1_release_user_pages(). A new task may allocate the mm structure while it is still being used, resulting in problems. One manifestation is corruption of the mmap_sem counter leading to a hang in down_write(). Another is corruption of an mm struct that is in use by another task.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/5f54364ff6cfcd14cddf5441c4a490bb28dd69f7
- https://git.kernel.org/stable/c/9ca11bd8222a612de0d2f54d050bfcf61ae2883f
- https://git.kernel.org/stable/c/0b7186d657ee55e2cdefae498f07d5c1961e8023
- https://git.kernel.org/stable/c/5a9a1b24ddb510715f8f621263938186579a965c
- https://git.kernel.org/stable/c/2bbac98d0930e8161b1957dc0ec99de39ade1b3c
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 | CISA-ADP |
| 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 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2022-55128
- GCVE · GCVE-0-2022-49076
CERT-FR advisories
- CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0252 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0212 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.9.12 < 5.10.111cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.34cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.20cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.17 < 5.17.3cpe:2.3:o:linux:linux_kernel:5.18:rc1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 3d2a9d642512c21a12d19b9250e7a835dcb41a79 < 5f54364ff6cfcd14cddf5441c4a490bb28dd69f7 ; affected 3d2a9d642512c21a12d19b9250e7a835dcb41a79 < 9ca11bd8222a612de0d2f54d050bfcf61ae2883f ; affected 3d2a9d642512c21a12d19b9250e7a835dcb41a79 < 0b7186d657ee55e2cdefae498f07d5c1961e8023 ; affected 3d2a9d642512c21a12d19b9250e7a835dcb41a79 < 5a9a1b24ddb510715f8f621263938186579a965c ; affected 3d2a9d642512c21a12d19b9250e7a835dcb41a79 < 2bbac98d0930e8161b1957dc0ec99de39ade1b3c ; affected 5732f83596f8a573f2cde814cc76a54e1a8995c7 |
| Linux · Linux | affected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.111 ≤ 5.10.* ; unaffected 5.15.34 ≤ 5.15.* ; unaffected 5.16.20 ≤ 5.16.* ; unaffected 5.17.3 ≤ 5.17.* |
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 |