NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.68 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn't check if we have a value here before dereferencing it, causing an oops. I'm able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42
- https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48
- https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494
- https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb
- https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53
- https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a
- https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| 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-2021-33827
- GCVE · GCVE-0-2021-47179
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:*:*:*:*:*:*:*:*≥ 4.9.269 < 4.9.271cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.14.233 < 4.14.235cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.19.191 < 4.19.193cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.118 < 5.4.124cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.36 < 5.10.42cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.12.3 < 5.12.9
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 80e34f4957ec3010c85f9bb0b568a8d46acdf535 < 4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42 ; affected 7b7b9774643220e53eef58c15bb29bd4182fe053 < 42637ca25c7d7b5a92804a679af5192e8c1a9f48 ; affected 9ffa7967f9379a0a1b924e9ffeda709d72237da7 < 39785761feadf261bc5101372b0b0bbaf6a94494 ; affected 6be0e4b59314e4a836495f6ffdc5d2c5b079deeb < aba3c7795f51717ae316f3566442dee7cc3eeccb ; affected 2fafe7d5047f98791afd9a1d90d2afb70debc590 < f9890652185b72b8de9ebeb4406037640b6e1b53 ; affected 7e65ea887d0c0997f3053acd91a027af45e71c5b < b090d110e66636bca473fd8b98d5c97b555a965a |
| Linux · Linux | affected 4.9.269 < 4.9.271 ; affected 4.14.233 < 4.14.235 ; affected 4.19.191 < 4.19.193 ; affected 5.4.118 < 5.4.124 ; affected 5.10.36 < 5.10.42 ; affected 5.12.3 < 5.12.9 |
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 |