CVE-2024-46690
nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
Severity Score
"-"
*CVSS v-
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
It is not safe to dereference fl->c.flc_owner without first confirming
fl->fl_lmops is the expected manager. nfsd4_deleg_getattr_conflict()
tests fl_lmops but largely ignores the result and assumes that flc_owner
is an nfs4_delegation anyway. This is wrong.
With this patch we restore the "!= &nfsd_lease_mng_ops" case to behave
as it did before the change mentioned below. This is the same as the
current code, but without any reference to a possible delegation.
*Credits:
N/A
CVSS Scores
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Scope
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* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-09-11 CVE Reserved
- 2024-09-13 CVE Published
- 2024-09-14 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/c5967721e1063648b0506481585ba7e2e49a075e | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.kernel.org/stable/c/1b46a871e980e3daa16fd5e77539966492e8910a | 2024-09-04 | |
| https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6 | 2024-08-30 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.9 < 6.10.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.9 < 6.10.8" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.9 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.9 < 6.11" | en |
Affected
| ||||||