CVE-2021-47179
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 80e34f4957ec3010c85f9bb0b568a8d46acdf535 | affected | git | 4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42 | Unavailable | None listed |
| 7b7b9774643220e53eef58c15bb29bd4182fe053 | affected | git | 42637ca25c7d7b5a92804a679af5192e8c1a9f48 | Unavailable | None listed |
| 9ffa7967f9379a0a1b924e9ffeda709d72237da7 | affected | git | 39785761feadf261bc5101372b0b0bbaf6a94494 | Unavailable | None listed |
| 6be0e4b59314e4a836495f6ffdc5d2c5b079deeb | affected | git | aba3c7795f51717ae316f3566442dee7cc3eeccb | Unavailable | None listed |
| 2fafe7d5047f98791afd9a1d90d2afb70debc590 | affected | git | f9890652185b72b8de9ebeb4406037640b6e1b53 | Unavailable | None listed |
| 7e65ea887d0c0997f3053acd91a027af45e71c5b | affected | git | b090d110e66636bca473fd8b98d5c97b555a965a | Unavailable | None listed |
| de144ff4234f935bd2150108019b5d87a90a8a96 | affected | git | a421d218603ffa822a0b8045055c03eae394a7eb | Unavailable | None listed |
| 96260bde1ea8ae31a5402fe506abbb8951d5a42c | affected | git | Unavailable | Unavailable | None listed |
| 5.11.20 | affected | semver | 5.12 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.9.269 | affected | semver | 4.9.271 | Unavailable | None listed |
| 4.14.233 | affected | semver | 4.14.235 | Unavailable | None listed |
| 4.19.191 | affected | semver | 4.19.193 | Unavailable | None listed |
| 5.4.118 | affected | semver | 5.4.124 | Unavailable | None listed |
| 5.10.36 | affected | semver | 5.10.42 | Unavailable | None listed |
| 5.12.3 | affected | semver | 5.12.9 | Unavailable | None listed |